Container port wharf energy saving and carbon reduction level quantitative evaluation method

Abstract

The invention provides a quantitative evaluation method for energy conservation and carbon reduction levels of container ports and piers. According to the method, evaluation indexes and calculation methods are constructed for five key factors which influence the energy conservation and carbon reduction level of the container port and wharf, such as clean energy and renewable energy application, shore power facility construction and application, energy conservation technology application, energy efficiency and carbon dioxide emission level, and resource intensive and cyclic utilization. According to the evaluation method, a quantitative calculation method is constructed by combining 14 indexes such as renewable energy growth proportion, shore power facility electricity consumption, large-scale electric machinery frequency conversion speed regulation technology proportion, unit energy consumption grade and cargo direct loading and direct taking proportion change conditions, and the energy-saving and carbon-reducing level of the container port and wharf is evaluated. And the green port construction level is promoted to be continuously improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of port engineering and low-carbon environmental protection, and specifically relates to a quantitative evaluation method for energy conservation and carbon reduction levels of container port terminals. Background Art

[0002] Container ports and terminals play a key role in global logistics, but the problems of high energy consumption and carbon emissions are becoming increasingly prominent. In order to promote green development, it is necessary to build a quantitative evaluation method for energy conservation and carbon reduction. The energy consumption of ports mainly comes from loading and unloading equipment, transport vehicles, lighting systems, etc., and carbon emissions come from the use of fuel equipment. With the increasing requirements of the International Maritime Organization and the Paris Agreement on carbon emission reduction, it is necessary to quantitatively evaluate the energy conservation and carbon reduction performance of ports through tools such as data monitoring and key indicator analysis, provide a scientific basis for optimizing operations, and promote the green and sustainable development of ports.

[0003] Looking at existing research at home and abroad, the evaluation of energy conservation and carbon reduction levels in port terminals has attracted widespread attention, but there are still the following problems that need to be solved: 1) Lack of a quantitative indicator system. At present, the research on energy conservation and carbon reduction in container terminals is mainly based on macro discussions, lacking a quantitative evaluation method based on specific port process flows; 2) Single evaluation method. Existing research mostly focuses on the analysis of a single dimension (such as energy efficiency or carbon emissions), and fails to systematically reflect the comprehensive energy conservation and carbon reduction level in the terminal operation process; 3) Insufficient data utilization. Although energy consumption and carbon emission data in ports have been gradually collected through intelligent equipment, these data have not yet been fully used for evaluation and optimization.

[0004] Based on the above background, the present invention proposes a quantitative evaluation method for the energy conservation and carbon reduction level of container port terminals. By establishing a multidimensional indicator system and a comprehensive analysis method, the comprehensive level of the terminal in terms of energy utilization efficiency, carbon emission intensity and low-carbon technology application is systematically evaluated, providing important support for the energy conservation and carbon reduction optimization of ports and the construction of green ports.

[0005] The present application is different from the prior art as follows:

[0006] Technical comparison with patent CN118378795B "A method for evaluating the pollution reduction and carbon reduction effect for port terminals"

[0007] 1. Patent CN118378795B focuses on the pollution reduction and carbon reduction effects of port terminal air purification equipment during operation. It monitors the peak package curve segment in the polluted gas concentration data curve in real time, and corrects the purification characteristic value in combination with wind speed data to evaluate the pollution reduction and carbon reduction effects in real time. Our patent focuses on multiple key factors of energy conservation and carbon reduction levels in container port terminals, including the application of clean energy and renewable energy, the construction and application of shore power facilities, the implementation of energy-saving technologies, energy efficiency and carbon dioxide emission levels, and the intensive and circular use of resources. It has constructed a comprehensive quantitative evaluation method with a wider coverage and a focus on systematicness and comprehensiveness.

[0008] Second, patent CN118378795B mainly focuses on the dynamic balance analysis of the purification rate and emission rate of polluted gases, and adopts the shape feature extraction and correction method of the peak envelope curve segment, which is a real-time evaluation technology for a single dimension (the effect of air purification equipment). We started from multiple dimensions and designed 14 indicators including the growth rate of renewable energy, the power consumption of shore power facilities, and the proportion of large electric machinery variable frequency speed regulation technology. We use these indicators to establish a quantitative calculation model, which can make a global assessment of energy conservation and carbon reduction levels.

[0009] Third, in terms of time efficiency, patent CN118378795B can achieve real-time evaluation of pollution reduction and carbon reduction effects, which is suitable for dynamic monitoring scenarios. Our method focuses on regular or phased quantitative evaluation of the overall energy conservation and carbon reduction level of port terminals, with the focus on macro-guidance for the formulation of port green construction strategies.

[0010] 4. In terms of scope of application, the technical method of patent CN118378795B is mainly applicable to the operation scenarios of air purification equipment, while our method is applicable to the comprehensive evaluation and optimization of the overall energy conservation and carbon reduction level of port terminals, which has a stronger guiding significance for promoting the construction of green ports. Summary of the invention

[0011] In order to solve the above technical problems, the present invention proposes a quantitative evaluation method for the energy conservation and carbon reduction level of container port terminals. Through this method, it is intended to provide a scientific, systematic and convenient quantitative evaluation method for accurately evaluating the energy conservation and carbon reduction level of container port terminals to meet the requirements of green port construction and low-carbon development. Through the method of the present invention, the problems of incomplete, difficult to quantify, and lack of a scientific indicator system in the prior art of port energy conservation and carbon reduction evaluation can be solved, providing a reference basis for port operators and decision makers, and promoting port energy consumption optimization and carbon emission reduction.

[0012] To achieve the above object, the technical solution adopted by the present invention is:

[0013] A quantitative evaluation method for energy conservation and carbon reduction level of a container port terminal comprises the following steps:

[0014] Step 1: Through literature review and field research of port enterprises, screen out the factors that affect the energy conservation and carbon reduction level of container port terminals, and assign impact weights;

[0015] Step 2: For the “clean energy and renewable energy application” in the influencing factors, select evaluation indicators and construct a quantitative calculation method for this influencing factor;

[0016] Step 3: For the “construction and application of shore power facilities” among the influencing factors, select evaluation indicators and construct a quantitative calculation method for this influencing factor;

[0017] Step 4: For the “application of energy-saving technology” among the influencing factors, select evaluation indicators and construct a quantitative calculation method for the influencing factor;

[0018] Step 5: For the “energy efficiency and carbon dioxide emission level” among the influencing factors, select evaluation indicators and construct a quantitative calculation method for the influencing factors;

[0019] Step 6: For the influencing factors of “resource intensiveness and recycling”, select evaluation indicators and construct a quantitative calculation method for this influencing factor;

[0020] Step 7, assign impact weights to the evaluation indicators in steps 2 to 6, and calculate the energy conservation and carbon reduction level score of the container port terminal.

[0021] As a further improvement of the present invention, the specific process of step 1 is as follows:

[0022] Step 11, through literature review and field research, select five key factors that affect the energy conservation and carbon reduction level of container port terminals: "clean energy and renewable energy application", "shore power facility construction and application", "energy-saving technology application", "energy efficiency and carbon dioxide emission level", and "resource intensiveness and recycling";

[0023] Step 12, assign the impact weights of the five key factors in step 11. Considering that the above five factors have basically the same impact on the energy conservation and carbon reduction level of container port terminals, the impact weights are all assigned 0.2, that is, the impact weight η1 of clean energy and renewable energy application, the impact weight η2 of shore power facility construction and application, the impact weight η3 of energy-saving technology application, the impact weight η4 of energy efficiency and carbon dioxide emission level, and the impact weight η5 of resource intensiveness and recycling are all 0.2.

[0024] As a further improvement of the present invention, the specific process of step 2 is as follows:

[0025] Step 21, for the influencing factor of "clean energy and renewable energy application", select two evaluation indicators: "the ratio of clean energy consumption to the comprehensive energy consumption of ports and terminals" and "the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year";

[0026] Step 22, calculate the ratio of clean energy consumption to the comprehensive energy consumption of the port terminal. Clean energy refers to energy with low emissions, low pollution, and environmental friendliness, including low-pollution fossil energy including natural gas, and secondary energy obtained by conversion of other forms of energy that does not emit pollutants during use, including electric energy and hydrogen energy;

[0027] The comprehensive energy consumption of ports and terminals includes the energy consumption of loading and unloading production and auxiliary production. The calculation method of the energy consumption of loading and unloading production is:

[0028]

[0029] In the formula, E a Energy consumption for loading and unloading production, tce; E ai The physical amount of energy consumption for loading and unloading production, t, 10 4 kW·h or 10 4 m 3 ; K i is the standard coal conversion coefficient of the i-th energy;

[0030] The calculation method of auxiliary production energy consumption is:

[0031]

[0032] In the formula, E b Energy consumption for auxiliary production, tce; E bi The amount of physical energy consumed to assist in the production of the i-th energy source, t, 10 4 kW·h or 10 4 m 3 ;

[0033] The calculation method for comprehensive energy consumption of ports and terminals is as follows:

[0034] E z =E a +E b

[0035] In the formula, E z is the total energy consumption, tce;

[0036] The calculation method of clean energy consumption is:

[0037]

[0038] In the formula, Eq is the clean energy consumption, tce; E qi The physical quantity of clean energy consumption for electricity, natural gas, liquefied natural gas, heat and steam, t, 10 4 kW·h or 10 4 m 3 ;

[0039] Ratio of clean energy consumption to comprehensive energy consumption of ports and terminals It can be expressed as:

[0040]

[0041] When the calculated ratio When the score is greater than or equal to 80%, the score of this item is 100 points; when When the score is greater than or equal to 60% and less than 80%, the score of this item is 75 points; when When the percentage is greater than or equal to 50% and less than 60%, this item is scored 50 points; when If the score is less than 50%, no score will be awarded for this item, and the final score for this item will be represented by A1.

[0042] Step 23, calculate the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year. The renewable energy used in ports and terminals includes solar energy, wind energy and geothermal energy. The annual growth rate of renewable energy compared with the previous year β can be expressed as:

[0043]

[0044] Where W a is the annual utilization of renewable energy such as photovoltaic power generation, wind-solar hybrid power generation, etc. in this year, kW·h; W b is the annual utilization of renewable energy in the previous year, kW·h. When the calculated β value is greater than or equal to 10%, this item is scored 100 points; when β is greater than or equal to 5% and less than 10%, this item is scored 75 points; when β is positive but less than 5%, this item is scored 50 points; when β is less than or equal to 0, this item is scored nothing. The final score of this item is represented by A2.

[0045] As a further improvement of the present invention, the specific process of step 3 is as follows:

[0046] Step 31, for the influencing factors of "construction and application of shore power facilities", select three evaluation indicators: "proportion of shore power facility berths", "proportion of the number of ships using shore power facilities", and "proportion of the increase in electricity consumption of shore power facilities compared with the previous year";

[0047] Step 32, calculate the ratio of the number of berths with shore power supply capability to the total number of berths. The shore power supply capability means that the shore power equipment is in normal operation, and the shore power equipment test report result is qualified and within the validity period. The ratio γ of the number of berths with shore power supply capability to the total number of berths can be expressed as:

[0048]

[0049] Where N a N is the number of berths with shore power supply capability; q is the total number of berths. When γ is 100%, this item is scored 100 points; when γ is greater than or equal to 70% and less than 100%, this item is scored 75 points; when γ is greater than or equal to 50% and less than 70%, this item is scored 50 points; when γ is less than 50%, this item is not scored, and the final score of this item is represented by A3;

[0050] Step 33, calculate the ratio of the number of times that ships with power receiving facilities actually use shore power to the number of times that such ships should use shore power according to regulations. Ships that should use shore power according to regulations refer to ships with shore power receiving facilities and whose engine start time during berthing meets the prescribed requirements. The regulations include berthing ships at inland rivers and river ports for 2 hours and berthing ships at coastal ports for 3 hours. The ratio of the number of times that ships with power receiving facilities actually use shore power to the number of times that such ships should use shore power according to regulations δ can be expressed as:

[0051]

[0052] Where N s The number of times that ships with power receiving facilities actually use shore power; N d The number of times such ships should use shore power according to regulations. When δ is greater than or equal to 90%, this item is scored 100 points; when δ is greater than or equal to 70% and less than 90%, this item is scored 75 points; when δ is greater than or equal to 50% and less than 70%, this item is scored 50 points; when δ is less than 50%, this item is scored no points, and the final score of this item is represented by A4;

[0053] Step 34, calculate the growth rate ε of the electricity consumption of shore power facilities compared with the previous year, which can be expressed as:

[0054]

[0055] Where D b is the electricity consumption of shore power facilities this year, kW·h; D sIt is the electricity consumption of shore power facilities in the previous year, kW·h. When ε is greater than or equal to 30%, this item is scored 100 points; when ε is greater than or equal to 20% and less than 30%, this item is scored 75 points; when ε is greater than or equal to 10% and less than 20%, this item is scored 50 points; when ε is less than 10%, this item is scored nothing. The final score of this item is represented by A5.

[0056] As a further improvement of the present invention, the specific process of step 4 is as follows:

[0057] Step 41, for the influencing factor of "energy-saving technology application", select five evaluation indicators: "the proportion of the number of E-RTGs and RMGs", "the proportion of large electric machinery variable frequency speed regulation technology", "the proportion of large electric machinery potential energy recovery technology", "the proportion of outdoor lighting green lamps", and "the proportion of energy-saving products";

[0058] Step 42, calculate the ratio α of the number of electric tire gantry cranes E-RTG and rail-mounted gantry cranes RMG to the total number of yard cranes, which can be expressed as:

[0059]

[0060] Where M e is the number of E-RTGs; M r is the number of RMG; M c is the total number of field bridges. When α is greater than or equal to 90%, this item is scored 100 points; when α is greater than or equal to 70% and less than 90%, this item is scored 75 points; when α is greater than or equal to 50% and less than 70%, this item is scored 50 points; when α is less than 50%, this item is not scored, and the final score of this item is represented by A6;

[0061] Step 43, calculate the proportion of large electric machinery variable frequency speed regulation technology application. The proportion of large electric machinery variable frequency speed regulation technology application refers to the proportion of the number of large machinery using variable frequency speed regulation technology to the number of all electric-driven large machinery, which is represented by ∈:

[0062]

[0063] Where, T b The number of large-scale machines using variable frequency speed regulation technology; T s is the number of all large-scale machines driven by electricity. When ∈ is greater than or equal to 80%, this item is scored 100 points; when ∈ is greater than or equal to 50% and less than 80%, this item is scored 75 points; when variable frequency speed regulation technology is used but the proportion ∈ is less than 50%, this item is scored 50 points; when variable frequency speed regulation technology is not used, ∈ is 0, and this item is not scored. The final score of this item is represented by A7;

[0064] Step 44, calculate the application ratio of potential energy recovery technology for large electric machinery. The application ratio of potential energy recovery technology for large electric machinery refers to the ratio of the number of large machinery using potential energy recovery technology to the number of all electric-driven large machinery applicable to the technology. The electric-driven machinery applicable to the technology includes gantry cranes, quay cranes, E-RTGs and RMGs. The ratio is expressed as μ:

[0065]

[0066] In the formula, S s is the number of large-scale machines using potential energy recovery technology; S a The number of all electrically driven large machines that are applicable to potential energy recovery technology. When μ is greater than or equal to 50%, this item is scored 100 points; when μ is greater than or equal to 30% and less than 50%, this item is scored 75 points; when potential energy recovery technology is used but the proportion μ is less than 30%, this item is scored 50 points; if potential energy recovery technology is not used and μ is 0, this item is not scored. The final score of the item is represented by A8;

[0067] Step 45, calculate the power ratio of outdoor lighting green lamps. Outdoor lighting green lamps refer to lamps used for on-site production operations in the port that meet the requirements of energy saving, environmental protection, safety, and comfort. Lamp types include LED lamps, wind-solar complementary lamps, and high-efficiency reflective lamps. The lamps are used in docks, yards, and roads within the port area. The ratio τ of outdoor lighting green lamps can be expressed as:

[0068]

[0069] Where W g The power of outdoor green lighting fixtures, kW; W s is the power of outdoor lighting fixtures, kW. When the calculated ratio τ is greater than or equal to 80%, this item is scored 100 points; when τ is greater than or equal to 60% and less than 80%, this item is scored 75 points; when τ is greater than or equal to 50% and less than 60%, this item is scored 50 points; when τ is less than 50%, this item is not scored, and the final score of this item is represented by A9;

[0070] Step 46, calculate the proportion of energy-saving products. The statistical scope of energy-saving products includes general equipment such as transformers, motors, pumps and fans. According to the "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Power Transformers" GB20052-2020, "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Electric Motors" GB18613-2020, "Energy Efficiency Limit Values ​​and Energy Efficiency Evaluation Values ​​for Clean Water Centrifugal Pumps" GB19762-2007, and "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Ventilators" GB19761-2020, products that meet the requirements of the above standards are energy-saving products. The proportion of energy-saving products It is expressed as:

[0071]

[0072] In the formula, C j The number of energy-saving products for general equipment such as transformers, motors, pumps, fans, etc.; C s is the total number of general equipment such as transformers, motors, pumps, fans, etc. When the percentage is greater than or equal to 30%, the score for this item is 100 points; when When the percentage is greater than or equal to 20% and less than 30%, the score for this item is 75 points; when When the percentage is greater than or equal to 10% and less than 20%, this item is worth 50 points. If the percentage is less than 10%, no points will be awarded for this item, and the final score for this item will be A. 10 express.

[0073] As a further improvement of the present invention, the specific process of step 5 is as follows:

[0074] Step 51, for the influencing factors of “energy efficiency and carbon dioxide emission level”, select two evaluation indicators of “unit energy consumption level” and “annual production unit throughput carbon dioxide emission”;

[0075] Step 52, calculate the comprehensive energy consumption per unit throughput of the port production. The comprehensive energy consumption per unit throughput of the port production refers to the comprehensive energy consumption of production consumed by the port to complete the throughput of 10,000 TEUs, which is the ratio of the comprehensive energy consumption of port production to the cargo throughput of the port during the statistical period, and is expressed as:

[0076]

[0077] Where k is the terminal fitness correction coefficient; T is the throughput of the container terminal, 10 4 The comprehensive energy consumption per unit throughput of the port calculated by 10,000 TEU is less than or equal to 24tce / 10 4 TEU, this item scores 100 points; ω is greater than 24tce / 10 4 TEU, but less than or equal to 28tce / 10 4 TEU, this item scores 75 points; ω is greater than 28tce / 10 4 TEU, but less than or equal to 45tce / 10 4 TEU, this item scores 50 points; ω is greater than 45tce / 10 4 During TEU, this item will not be scored, and the final score of this item will be A. 11 express;

[0078] Step 53, calculate the annual carbon dioxide emissions per unit of production throughput. The carbon dioxide emissions per unit of port production throughput refers to the comprehensive production energy consumed by the port to complete every 10,000 TEUs of throughput, among which electricity and steam are regarded as zero-carbon emission energy types in the port and are not included. The amount of carbon dioxide emitted is the ratio of the carbon dioxide emissions generated by the comprehensive energy consumption of the port production in one year to the port cargo throughput, expressed as ρ:

[0079]

[0080] Where P c The amount of carbon dioxide emitted for the production of comprehensive energy for the port is calculated by multiplying the various energy consumption and the carbon dioxide emission coefficient, which can be expressed as:

[0081]

[0082] In the formula, Z i is the carbon dioxide emission coefficient of the i-th energy source, and the change ratio θ of the annual production unit throughput carbon dioxide emission compared with the previous year is calculated, which can be expressed as:

[0083]

[0084] In the formula, ρ c and ρ l are the carbon dioxide emissions per unit of production throughput in the current year and the previous year respectively; P l The amount of carbon dioxide emitted by the port’s comprehensive energy production in the previous year; T c and T l The throughput of the current year and the previous year are evaluated respectively. When the calculated change ratio θ is less than or equal to -0.6%, this item is scored 100 points; when θ is less than or equal to -0.3% but greater than -0.6%, this item is scored 75 points; when θ is less than 0 but greater than -0.3%, this item is scored 50 points; when θ is greater than or equal to 0, this item is not scored. The final score of this item is A 12 express.

[0085] As a further improvement of the present invention, the specific process of step 6 is as follows:

[0086] Step 61, for the influencing factor of "resource concentration and recycling", select two evaluation indicators, namely "proportion of direct loading and direct pickup of goods" and "proportion of throughput reaching the designed throughput capacity";

[0087] Step 62, consider the change in the proportion of goods using direct loading and direct taking technology compared with the previous year. Direct loading and direct taking means that the loaded and unloaded goods enter and leave the port directly, do not need to be transferred from the port yard, and do not occupy the storage resources of the port enterprise. Among them, direct loading means that the goods are directly loaded onto the ship from outside the port through transportation equipment, and direct taking means that the goods are directly shipped from the ship through transportation equipment. The proportion of goods using direct loading and direct taking technology, that is, the proportion of goods directly entering and leaving the port to the throughput, therefore, the change rate of the proportion of direct loading and direct taking technology compared with the previous year χ can be expressed as:

[0088]

[0089] In the formula, B c and B l The direct cargo inflow and outflow volume of the current year and the previous year are evaluated respectively. 4 TEU, when χ is greater than or equal to 20%, this item is scored 100 points; when χ is greater than or equal to 10% but less than 20%, this item is scored 75 points; when χ is a positive value but less than 10%, this item is scored 50 points; when χ is less than or equal to 0, this item is not scored, and the final score of this item is A. 13 express;

[0090] Step 63, calculate the ratio v of the throughput reaching the designed throughput capacity:

[0091]

[0092] Where Q is the designed throughput capacity of the port terminal, 10 4 TEU, when υ is greater than or equal to 90%, this item is scored 100 points; when v is greater than or equal to 70% but less than 90%, this item is scored 75 points; when v is greater than or equal to 50% but less than 70%, this item is scored 50 points; when v is less than 50%, this item is not scored, and the final score of this item is A 14 express.

[0093] As a further improvement of the present invention, the specific process of step 7 is as follows:

[0094] Step 71, assigning influence weights to the evaluation indicators in steps 2 to 6, and assigning weights λ1 and λ2 to the two evaluation indicators of "the ratio of clean energy consumption to the comprehensive energy consumption of ports and terminals" and "the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year" in step 21, respectively, and satisfying:

[0095] λ1+λ2=1

[0096] For the three evaluation indicators in step 31, namely, “the proportion of shore power berths”, “the proportion of ships using shore power facilities” and “the proportion of shore power facilities electricity consumption growth compared with the previous year”, weights λ3, λ4 and λ5 are assigned respectively, and the following conditions are met:

[0097] λ3+λ4+λ5=1

[0098] For the five evaluation indicators in step 41, namely, “the proportion of E-RTG and RMG in quantity”, “the proportion of variable frequency speed regulation technology for large electric machinery”, “the proportion of potential energy recovery technology for large electric machinery”, “the proportion of green lamps for outdoor lighting” and “the proportion of energy-saving products”, weights λ6, λ7, λ8, λ9 and λ10 are assigned respectively. 10 , and satisfy:

[0099] λ6+λ7+λ8+λ9+λ 10 =1

[0100] For the two evaluation indicators of "unit energy consumption level" and "annual production unit throughput carbon dioxide emissions" in step 51, weights λ are assigned respectively. 11 and λ 12 , and satisfy:

[0101] λ 11 +λ 12 =1

[0102] For the two evaluation indicators in step 61, namely, the proportion of direct loading and direct pickup of goods and the proportion of throughput reaching the designed throughput capacity, the weights λ are assigned respectively. 13 and λ 14 , and satisfy:

[0103] λ 13 +λ 14 =1

[0104] Step 72, calculate the final container port terminal energy conservation and carbon reduction level score G:

[0105] G=η1(λ1A1+λ2A2)+η2(θ3A3+λ4A4+λ5A5)+η3(λ6A6+λ7A7+λ8A8+λ9A9+λ 10 A 10 )+η4(λ 11 A 11 +λ 12 A 12 )+η5(λ 13 A 13 +λ 14 A 14 )

[0106] The calculated energy conservation and carbon reduction level G has a score range of 0-100. The higher the score, the higher the energy conservation and carbon reduction level of the container port terminal.

[0107] Beneficial effects: Compared with the prior art, the technical solution of the present invention has the following beneficial technical effects:

[0108] The present invention provides a scientific, systematic and practical quantitative evaluation method for energy conservation and carbon reduction levels of container port terminals. By constructing a multidimensional indicator system and calculation method, it comprehensively reflects the energy conservation and carbon reduction levels of port terminals from five dimensions, namely, the application of clean energy and renewable energy, the construction and application of shore power facilities, the application of energy-saving technologies, energy efficiency and carbon dioxide emission levels, and resource intensiveness and recycling. Compared with the prior art, the method of the present invention is highly targeted and can accurately quantify the energy consumption and carbon emissions of each link of the terminal, providing intuitive and reliable data support. Through the quantitative evaluation results, the port operator can quickly identify the key links with high energy consumption and high emissions, and formulate targeted optimization measures accordingly, effectively improving the green operation level of the port. In addition, the method has strong practicality and scalability, is suitable for container port terminals of different sizes, supports real-time data collection and evaluation, and is convenient for management departments and enterprises to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0109] Figure 1 The present invention is a calculation flow chart of a method for quantitatively evaluating energy conservation and carbon reduction levels of a container port terminal. DETAILED DESCRIPTION

[0110] The following is a detailed description of the technical solution of the application in conjunction with the accompanying drawings. The described embodiments are only part of the embodiments involved in this patent. All non-innovative embodiments of other researchers in this field based on this embodiment are within the scope of protection of this patent.

[0111] like Figure 1 As shown in FIG. 1 , it is a calculation flow chart of a quantitative evaluation method for energy conservation and carbon reduction level of a container port terminal of the present invention, and the specific steps are as follows:

[0112] Step 1: Through literature review and field research of port enterprises, the factors affecting the energy conservation and carbon reduction level of container port terminals are screened out, and the influence weights are assigned. The specific process of step 1 is as follows:

[0113] Step 11, through literature review and field research, select five key factors that affect the energy conservation and carbon reduction level of container port terminals, namely "clean energy and renewable energy application", "shore power facility construction and application", "energy-saving technology application", "energy efficiency and carbon dioxide emission level", and "resource intensive and recycling";

[0114] Step 12, assign the impact weights of the five key factors in step 11. Considering that the above five factors have basically the same impact on the energy conservation and carbon reduction level of container port terminals, the impact weights are all assigned 0.2, that is, the impact weight of clean energy and renewable energy application (η1), the impact weight of shore power facility construction and application (η2), the impact weight of energy-saving technology application (η3), the impact weight of energy efficiency and carbon dioxide emission level (η4) and the impact weight of resource intensiveness and recycling (η5) are all 0.2.

[0115] Step 2: For the “clean energy and renewable energy application” in the influencing factors, select evaluation indicators and construct a quantitative calculation method for this influencing factor. The specific method is as follows:

[0116] Step 21, for the influencing factor of "clean energy and renewable energy application", select two evaluation indicators: "the ratio of clean energy consumption to the comprehensive energy consumption of ports and terminals" and "the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year";

[0117] Step 22, calculate the ratio of clean energy consumption to the comprehensive energy consumption of the port terminal. Clean energy refers to energy with low emissions, low pollution, and environmental friendliness, including low-pollution fossil energy (such as natural gas, etc.), and secondary energy (such as electricity, hydrogen, etc.) obtained by converting other forms of energy and emitting no pollutants during use.

[0118] The comprehensive energy consumption of ports and terminals includes the energy consumption of loading and unloading production and auxiliary production. The calculation method of the energy consumption of loading and unloading production is:

[0119]

[0120] In the formula, E a Energy consumption for loading and unloading production, tce; E ai The physical amount of energy consumption for loading and unloading production, t, 10 4 kW·h or 10 4 m 3 etc.; K i is the standard coal conversion coefficient of the i-th energy source, and the value can be found in Table 1:

[0121] Table 1 Standard coal conversion coefficients of various energy sources

[0122]

[0123]

[0124] The calculation method of auxiliary production energy consumption is:

[0125]

[0126] In the formula, E b Energy consumption for auxiliary production, tce; E bi The amount of physical energy consumed to assist in the production of the i-th energy source, t, 10 4 kW·h or 10 4 m 3 wait.

[0127] The calculation method for comprehensive energy consumption of ports and terminals is as follows:

[0128] E z =E a +E b

[0129] In the formula, E z is the comprehensive energy consumption, tce.

[0130] The calculation method of clean energy consumption is:

[0131]

[0132] In the formula, E q is the clean energy consumption, tce; E qi The physical amount of clean energy consumption such as electricity, natural gas, liquefied natural gas, heat, steam, etc., t, 10 4 kW·h or 10 4 m 3 wait.

[0133] Ratio of clean energy consumption to comprehensive energy consumption of ports and terminals It can be expressed as:

[0134]

[0135] When the calculated ratio When the score is greater than or equal to 80%, the score of this item is 100 points; when When the score is greater than or equal to 60% and less than 80%, the score of this item is 75 points; when When the percentage is greater than or equal to 50% and less than 60%, this item is scored 50 points; when If the score is less than 50%, no score will be awarded for this item. The final score for this item is represented by A1;

[0136] Step 23, calculate the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year. The renewable energy used in ports and terminals mainly includes solar energy, wind energy, geothermal energy, etc. The annual growth rate of renewable energy compared with the previous year β can be expressed as:

[0137]

[0138] Where W ais the annual utilization of renewable energy such as photovoltaic power generation, wind-solar hybrid power generation, etc. in this year, kW·h; W b The annual utilization of renewable energy in the previous year, kW·h. When the calculated β value is greater than or equal to 10%, this item is scored 100 points; when β is greater than or equal to 5% and less than 10%, this item is scored 75 points; when β is positive but less than 5%, this item is scored 50 points; when β is less than or equal to 0, this item is not scored. The final score of this item is represented by A2.

[0139] Step 3: For the influencing factors of “shore power facility construction and application”, select evaluation indicators and construct a quantitative calculation method for this influencing factor. The specific method is as follows:

[0140] Step 31, for the influencing factors of "construction and application of shore power facilities", select three evaluation indicators: "proportion of shore power facility berths", "proportion of the number of ships using shore power facilities", and "proportion of the increase in electricity consumption of shore power facilities compared with the previous year";

[0141] Step 32, calculate the ratio of the number of berths with shore power supply capacity to the total number of berths. Having shore power supply capacity means that the shore power equipment is in normal operation, and the shore power equipment test report result is qualified and within the validity period. The ratio γ of the number of berths with shore power supply capacity to the total number of berths can be expressed as:

[0142]

[0143] Where N a N is the number of berths with shore power supply capability; q is the total number of berths. When γ is 100%, this item is scored 100 points; when γ is greater than or equal to 70% and less than 100%, this item is scored 75 points; when γ is greater than or equal to 50% and less than 70%, this item is scored 50 points; when γ is less than 50%, this item is not scored. The final score of this item is represented by A3;

[0144] Step 33, calculate the ratio of the number of times that ships with power receiving facilities actually use shore power to the number of times such ships should use shore power according to regulations. Ships that should use shore power according to regulations refer to ships that have shore power receiving facilities and whose engine start time during berthing meets the prescribed requirements (2 hours for ships berthing at inland rivers and river ports, and 3 hours for ships berthing at coastal ports). The ratio of the number of times that ships with power receiving facilities actually use shore power to the number of times such ships should use shore power according to regulations δ can be expressed as:

[0145]

[0146] Where N s The number of times that ships with power receiving facilities actually use shore power; N dThe number of times such ships should use shore power according to regulations. When δ is greater than or equal to 90%, this item is scored 100 points; when δ is greater than or equal to 70% and less than 90%, this item is scored 75 points; when δ is greater than or equal to 50% and less than 70%, this item is scored 50 points; when δ is less than 50%, this item is not scored. The final score of this item is represented by A4;

[0147] Step 34, calculate the growth rate ε of the electricity consumption of shore power facilities compared with the previous year, which can be expressed as:

[0148]

[0149] Where D b is the electricity consumption of shore power facilities this year, kW·h; D s The power consumption of shore power facilities in the previous year, kW·h. When ε is greater than or equal to 30%, this item is scored 100 points; when ε is greater than or equal to 20% and less than 30%, this item is scored 75 points; when ε is greater than or equal to 10% and less than 20%, this item is scored 50 points; when ε is less than 10%, this item is not scored. The final score of this item is represented by A5.

[0150] Step 4: For the "application of energy-saving technology" in the influencing factors, select the evaluation index and construct the quantitative calculation method of this influencing factor. The specific process is as follows:

[0151] Step 41, for the influencing factor of "energy-saving technology application", select five evaluation indicators, namely, "the proportion of the number of E-RTGs and RMGs", "the proportion of variable frequency speed regulation technology for large electric machinery", "the proportion of potential energy recovery technology for large electric machinery", "the proportion of green lamps for outdoor lighting", and "the proportion of energy-saving products".

[0152] Step 42, calculate the ratio α of the number of electric tire gantry cranes (E-RTG) and rail mounted gantry cranes (RMG) to the total number of yard cranes, which can be expressed as:

[0153]

[0154] Where M e is the number of E-RTGs; M r is the number of RMG; M c is the total number of field bridges. When α is greater than or equal to 90%, this item is scored 100 points; when α is greater than or equal to 70% and less than 90%, this item is scored 75 points; when α is greater than or equal to 50% and less than 70%, this item is scored 50 points; when α is less than 50%, this item is not scored. The final score of this item is represented by A6;

[0155] Step 43, calculate the proportion of large electric machinery variable frequency speed regulation technology application. The proportion of large electric machinery variable frequency speed regulation technology application refers to the proportion of large machinery using variable frequency speed regulation technology to all large electric machinery, expressed as ∈:

[0156]

[0157] Where, T b The number of large-scale machines using variable frequency speed regulation technology; T s is the number of all large-scale machines driven by electricity. When ∈ is greater than or equal to 80%, this item is scored 100 points; when ∈ is greater than or equal to 50% and less than 80%, this item is scored 75 points; when variable frequency speed regulation technology is used, but the proportion ∈ is less than 50%, this item is scored 50 points; if variable frequency speed regulation technology is not used (∈ is 0), this item is not scored. The final score of this item is represented by A7;

[0158] Step 44, calculate the application ratio of potential energy recovery technology for large electric machinery. The application ratio of potential energy recovery technology for large electric machinery refers to the ratio of the number of large machinery using potential energy recovery technology to the number of all electric-driven large machinery applicable to the technology. Among them, the electric-driven machinery applicable to the technology mainly includes gantry cranes, quay cranes, E-RTGs, RMGs, etc. The ratio is expressed as μ:

[0159]

[0160] In the formula, S s is the number of large-scale machines using potential energy recovery technology; S a The number of all electrically driven large machines that are applicable to potential energy recovery technology. When μ is greater than or equal to 50%, this item is scored 100 points; when μ is greater than or equal to 30% and less than 50%, this item is scored 75 points; when potential energy recovery technology is used but the proportion μ is less than 30%, this item is scored 50 points; if potential energy recovery technology is not used (μ is 0), this item is not scored. The final score of the item is represented by A8;

[0161] Step 45, calculate the power ratio of outdoor lighting green lamps. Outdoor lighting green lamps refer to lamps used for on-site production operations in ports that meet the requirements of energy saving, environmental protection, safety, and comfort. Lamp types include LED lamps, wind-solar complementary lamps, high-efficiency reflective lamps, etc. The use scope of lamps includes docks, yards, and roads in the port area. The ratio of outdoor lighting green lamps τ can be expressed as:

[0162]

[0163] Where W g The power of outdoor green lighting fixtures, kW; W sis the power of outdoor lighting fixtures, kW. When the calculated ratio τ is greater than or equal to 80%, this item scores 100 points; when τ is greater than or equal to 60% and less than 80%, this item scores 75 points; when τ is greater than or equal to 50% and less than 60%, this item scores 50 points; when τ is less than 50%, this item scores no points. The final score of this item is represented by A9;

[0164] Step 46, calculate the proportion of energy-saving products. The statistical scope of energy-saving products includes general equipment such as transformers, motors, pumps, fans, etc. According to the "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Power Transformers" (GB20052-2020), "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Electric Motors" (GB18613-2020), "Energy Efficiency Limit Values ​​and Energy Saving Evaluation Values ​​for Clean Water Centrifugal Pumps" (GB19762-2007), "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Ventilators" (GB19761-2020), products that meet the requirements of the above standards are energy-saving products. The proportion of energy-saving products It is expressed as:

[0165]

[0166] In the formula, C j The number of energy-saving products for general equipment such as transformers, motors, pumps, fans, etc.; C s is the total number of general equipment such as transformers, motors, pumps, fans, etc. When the percentage is greater than or equal to 30%, the score for this item is 100 points; when When the percentage is greater than or equal to 20% and less than 30%, the score for this item is 75 points; when When the percentage is greater than or equal to 10% and less than 20%, this item is worth 50 points. If the percentage is less than 10%, no points will be awarded for this item. The final score for this item is A 10 express.

[0167] Step 5: For the "energy efficiency and carbon dioxide emission level" in the influencing factors, select the evaluation index and construct the quantitative calculation method of the influencing factor. The specific process is as follows:

[0168] Step 51, for the influencing factors of “energy efficiency and carbon dioxide emission level”, select two evaluation indicators of “unit energy consumption level” and “annual production unit throughput carbon dioxide emission”;

[0169] Step 52, calculate the comprehensive energy consumption per unit throughput of the port. The comprehensive energy consumption per unit throughput of the port refers to the comprehensive energy consumption of production consumed by the port to complete the throughput of 10,000 TEUs, which is the ratio of the comprehensive energy consumption of port production to the cargo throughput of the port during the statistical period, and is expressed as:

[0170]

[0171] Where T is the throughput of the container terminal, 10 4 TEU (ten thousand TEU); k is the terminal fitness correction coefficient, which is determined by the terminal fitness (as shown in Table 2). The calculation method of the terminal fitness L is:

[0172]

[0173] Where Q is the designed throughput capacity of the port terminal, 10 4 TEU.

[0174] Table 2 Terminal adaptability correction coefficient

[0175] Terminal fitness L Correction factor k 0<L≤2 1.0 2<L≤3 0.95 3<L≤4 0.9 L>4 0.85

[0176] The calculated comprehensive energy consumption per unit throughput of the port is less than or equal to 24tce / 10 4 TEU, this item scores 100 points; ω is greater than 24tce / 10 4 TEU, but less than or equal to 28tce / 10 4 TEU, this item scores 75 points; ω is greater than 28tce / 10 4 TEU, but less than or equal to 45tce / 10 4 TEU, this item scores 50 points; ω is greater than 45tce / 10 4 This item is not scored when TEU is used. The final score of this item is A 11 express;

[0177] Step 53, calculate the annual carbon dioxide emissions per unit of production throughput. The carbon dioxide emissions per unit of port production throughput refers to the carbon dioxide emissions from the comprehensive production energy consumed by the port to complete every 10,000 TEUs of throughput (wherein electricity and steam are considered as zero-carbon emission energy types in the port and are not included), which is the ratio of the carbon dioxide emissions generated by the comprehensive production energy consumption of the port in one year to the port cargo throughput, expressed as ρ:

[0178]

[0179] Where P c The amount of carbon dioxide emitted for the production of comprehensive energy for the port is calculated by multiplying the various energy consumption and the carbon dioxide emission coefficient, which can be expressed as:

[0180]

[0181] In the formula, Z i is the carbon dioxide emission coefficient of the ith energy source, as shown in Table 3.

[0182] Table 3 Carbon dioxide emission coefficients of various energy sources

[0183]

[0184]

[0185] The change ratio θ of annual production unit throughput carbon dioxide emissions compared with the previous year can be expressed as:

[0186]

[0187] In the formula, ρ c and ρ l are the carbon dioxide emissions per unit of production throughput in the current year and the previous year respectively; P l The amount of carbon dioxide emitted by the port’s comprehensive energy production in the previous year; T c and T l The throughput of the current year and the previous year are evaluated respectively. When the calculated change ratio θ is less than or equal to -0.6%, this item is scored 100 points; when θ is less than or equal to -0.3% but greater than -0.6%, this item is scored 75 points; when θ is less than 0 but greater than -0.3%, this item is scored 50 points; when θ is greater than or equal to 0, this item is not scored. The final score of this item is A 12 express.

[0188] Step 6: For the influencing factors of “resource intensiveness and recycling”, select evaluation indicators and construct a quantitative calculation method for this influencing factor. The specific process is as follows:

[0189] Step 61, for the influencing factor of "resource concentration and recycling", select two evaluation indicators, namely "proportion of direct loading and direct pickup of goods" and "proportion of throughput reaching the designed throughput capacity";

[0190] Step 62, consider the change in the proportion of goods that adopt direct loading and direct pickup compared with the previous year. Direct loading and direct pickup means that the loaded and unloaded goods enter and leave the port directly, do not need to be transferred from the port yard, and do not occupy the storage resources of the port enterprise. Among them, direct loading means that the goods are directly loaded onto the ship from outside the port via transportation equipment, and direct pickup means that the goods are directly shipped from the ship via transportation equipment. The proportion of goods that adopt direct loading and direct pickup is the proportion of the direct entry and exit volume of goods to the throughput. Therefore, the change rate χ of the proportion of direct loading and direct pickup compared with the previous year can be expressed as:

[0191]

[0192] In the formula, B c and B l The direct cargo inflow and outflow volume of the current year and the previous year are evaluated respectively. 4TEU. When χ is greater than or equal to 20%, this item is scored 100 points; when χ is greater than or equal to 10% but less than 20%, this item is scored 75 points; when χ is a positive value but less than 10%, this item is scored 50 points; when χ is less than or equal to 0, this item is not scored. The final score of this item is A 13 express.

[0193] Step 63, calculate the ratio v of the throughput reaching the designed throughput capacity:

[0194]

[0195] Where Q is the designed throughput capacity of the port terminal, 10 4 TEU. When υ is greater than or equal to 90%, this item is scored 100 points; when v is greater than or equal to 70% but less than 90%, this item is scored 75 points; when v is greater than or equal to 50% but less than 70%, this item is scored 50 points; when v is less than 50%, this item is not scored. The final score of this item is A 14 express.

[0196] Step 7: Assign impact weights to the evaluation indicators in steps 2 to 6 and calculate the energy conservation and carbon reduction level score of the container port terminal. The specific process is as follows:

[0197] Step 71, assigning influence weights to the evaluation indicators in steps 2 to 6. For the two evaluation indicators of "the ratio of clean energy consumption to the comprehensive energy consumption of ports and terminals" and "the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year" in step 21, weights λ1 and λ2 are assigned respectively, and the following conditions are met:

[0198] λ1+λ2=1

[0199] For the three evaluation indicators in step 31, namely, “the proportion of shore power berths”, “the proportion of ships using shore power facilities” and “the proportion of shore power facilities electricity consumption growth compared with the previous year”, weights λ3, λ4 and λ5 are assigned respectively, and the following conditions are met:

[0200] λ3+λ4+λ5=1

[0201] For the five evaluation indicators in step 41, namely, “the proportion of E-RTG and RMG in quantity”, “the proportion of variable frequency speed regulation technology for large electric machinery”, “the proportion of potential energy recovery technology for large electric machinery”, “the proportion of green lamps for outdoor lighting” and “the proportion of energy-saving products”, weights λ6, λ7, λ8, λ9 and λ10 are assigned respectively. 10 , and satisfy:

[0202] λ6+λ7+λ8+λ9+λ 10 =1

[0203] For the two evaluation indicators of "unit energy consumption level" and "annual production unit throughput carbon dioxide emissions" in step 51, weights λ are assigned respectively. 11 and λ 12 , and satisfy:

[0204] λ 11 +λ 12 =1

[0205] For the two evaluation indicators in step 61, namely, the proportion of direct loading and direct pickup of goods and the proportion of throughput reaching the designed throughput capacity, the weights λ are assigned respectively. 13 and λ 14 , and satisfy:

[0206] λ 13 +λ 14 =1

[0207] Step 72, calculate the final container port terminal energy conservation and carbon reduction level score G:

[0208] G=η1(λ1A1+λ2A2)+η2(λ3A3+λ4A4+λ5A5)+η3(λ6A6+λ7A7+λ8A8+λ9A9+λ 10 A 10 )+η4(λ 11 A 11 +λ 12 A 12 )+η5(λ 13 A 13 +λ 14 A 14 )

[0209] The calculated energy conservation and carbon reduction level G has a score range of 0-100. The higher the score, the higher the energy conservation and carbon reduction level of the container port terminal.

[0210] Example

[0211] (1) Collect materials and data on the container port terminal of a port enterprise in Taicang City in five aspects: "application of clean energy and renewable energy", "construction and application of shore power facilities", "application of energy-saving technologies", "energy efficiency and carbon dioxide emission levels", and "resource intensiveness and recycling".

[0212] (2) For the influencing factor of “clean energy and renewable energy application”, a weight of 0.2 (i.e. η1 = 0.2) was assigned. Two evaluation indicators were selected: “the ratio of clean energy consumption to the comprehensive energy consumption of ports and terminals” and “the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year”.

[0213] The types of energy consumed by the port enterprise include electricity, diesel and gasoline. From January to December 2022, it consumed 9.6153 million kWh of electricity, 1,159.09 tons of diesel, 6.42 tons of gasoline, and 2,880.08 tons of standard coal. Among them, electricity was converted into 1,181.72 tons of standard coal, accounting for 41.03% of the energy consumption, which is less than 50%. This sub-item A1 = 0, and the weight of this sub-item λ1 = 0.5.

[0214]

[0215] The port enterprise built a rooftop photovoltaic power generation project for the machine repair workshop in 2021, with an installed power of 6000W; in 2022, it installed 5040W of wind-solar complementary lamps and 50160W of photovoltaic power generation on the roof of the comprehensive building and a solar photovoltaic carport. In 2022, the annual utilization of renewable energy increased by 820% over the previous year, exceeding 10%. This sub-item A2 = 100, and the weight of this sub-item λ2 = 0.5.

[0216] (3) For the influencing factor of "construction and application of shore power facilities", a weight of 0.2 (i.e. η2 = 0.2) was assigned. Three evaluation indicators were selected: "the proportion of berths of shore power facilities", "the proportion of the number of times ships use shore power facilities", and "the proportion of electricity consumption of shore power facilities compared with the previous year".

[0217] The port enterprise has built 6 sets of shore power facilities and passed the shore power inspection, covering all 2 berths. The number of berths supplied by shore power accounts for 100%. This sub-item A3=100, and the weight of this sub-item λ3=0.4.

[0218]

[0219] The port enterprise berthed 1,541 ships in total, of which 631 were not connected to shore power due to external reasons such as the power interface not matching the shore power interface and insufficient berthing time. Among the remaining 910 ships, 472 were connected to shore power, and the actual number of shore power usage accounted for 51.87% of the number of shore power usage that such ships should use according to regulations. When it is greater than 50% but less than 70%, this sub-item A4 = 50, and this sub-item weight λ4 = 0.3.

[0220] The port enterprise consumed a total of 70,551 kWh of shore power in 2021 and 137,639 kWh of shore power in 2022, an increase of 95.1% over the previous year, higher than 30%. This sub-item A5=100, and the weight of this sub-item λ5=0.3.

[0221] (4) For the influencing factor of "energy-saving technology application", a weight of 0.2 (i.e. η3 = 0.2) was assigned. Five evaluation indicators were selected: "the proportion of the number of E-RTGs and RMGs", "the proportion of variable frequency speed regulation technology for large electric machinery", "the proportion of potential energy recovery technology for large electric machinery", "the proportion of green lamps for outdoor lighting" and "the proportion of energy-saving products".

[0222] All 17 yard cranes in the port area of ​​this port enterprise are E-RTGs, accounting for 100%. This sub-item A6=100, and the weight of this sub-item λ6=0.2.

[0223] The port enterprise has 6 ZP-type 61T container loading and unloading bridges, 15 RC40.5T and 2 41T tire-type gantry cranes, a total of 23 large electric machinery, all of which use frequency conversion technology. The application rate of frequency conversion speed regulation technology in large electric machinery is 100%, which is higher than 80%. This sub-item A7=100, and the weight of this sub-item λ7=0.2.

[0224] The port enterprise has 6 ZP-type 61T container loading and unloading bridges, 15 RC40.5T and 2 41T tire-type gantry cranes, a total of 23 large electric machinery, all of which have applied potential energy recovery technology, accounting for 100%, exceeding 50%. This sub-item A8=100, and the weight of this sub-item λ8=0.2.

[0225] All 738 outdoor lighting fixtures of the port enterprise are LED lamps, and the power of outdoor green lighting fixtures accounts for 100%, which is higher than 80%. This sub-item A9=100, and the weight of this sub-item λ9=0.2.

[0226] The port enterprise does not use energy-saving products for general equipment such as transformers and motors. 10 =0, the weight of this small item is λ 10 =0.2.

[0227] (5) For the influencing factors of “energy efficiency and carbon dioxide emission level”, a weight of 0.2 (i.e. η4 = 0.2) is assigned. Two evaluation indicators, “unit energy consumption level” and “annual production unit throughput carbon dioxide emissions”, are selected.

[0228] The comprehensive energy consumption of the port enterprise in 2022 is 2880.08tce, the throughput is 1.7493 million TEUs, the designed throughput capacity is 1 million TEUs, the terminal fitness is 0.57, and the terminal fitness correction coefficient is 1.0. The comprehensive energy consumption per unit throughput of the port is calculated to be 16.46tce / 10 4 TEU, less than 24tce / 10 4 TEU, this item A 11 =100, the weight of this item is λ 11 =0.5.

[0229] The port enterprise consumed 1,069.64 tons of diesel and 5.98 tons of gasoline in 2021 (electricity is considered a zero-carbon emission energy type in the port and is not included), equivalent to 3,398.45 tons of carbon dioxide emissions, with a throughput of 1.5804 million TEUs, and carbon dioxide emissions per unit throughput of 21.50tCO2 / 10 4 TEU; in 2022, the consumption of diesel was 1,159.09 tons, gasoline was 6.42 tons, equivalent to 3,682.46 tons of carbon dioxide emissions, the throughput was 1,749,300 TEU, and the carbon dioxide emissions per unit throughput was 21.05tCO2 / 10 4 TEU. The unit throughput CO2 emissions in 2022 decreased by 2.09% compared with 2021. 12 =100, the weight of this item is λ 12 =0.5.

[0230] (6) For the influencing factor of “resource intensiveness and recycling”, a weight of 0.2 (i.e. η5 = 0.2) is assigned. Two evaluation indicators are selected: “the proportion of direct loading and direct pickup of goods” and “the proportion of throughput reaching the designed throughput capacity”.

[0231] The port enterprise's throughput in 2021 was 1.5804 million TEUs, of which 4,926 TEUs were directly loaded and taken, accounting for 0.312%; the throughput in 2022 was 1.7493 million TEUs, of which 5,547 TEUs were directly loaded and taken, accounting for 0.317%, an increase of 1.6% over 2021, less than 10%. This sub-item A 13 =50, the weight of this small item is λ 13 =0.5.

[0232] The designed throughput capacity of the port terminal of the port enterprise is 1 million TEUs. The throughput in 2022 is 1.7493 million TEUs. The proportion of throughput reaching the designed throughput capacity is 174.93%, which is greater than 90%. 14 =100, the weight of this item is λ 14 =0.5.

[0233] (7) Combining the scores and weights of the above indicators, the energy conservation and carbon reduction level score of the container port terminal is calculated to be 78 points, which means that the energy conservation and carbon reduction level of the container port terminal is moderate.

[0234] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A quantitative evaluation method for energy conservation and carbon reduction level of container port terminals, characterized in that: The steps include: Step 1: Through literature review and field research of port enterprises, screen out the factors that affect the energy conservation and carbon reduction level of container port terminals, and assign impact weights; Step 2: For the "clean energy and renewable energy application" in the influencing factors, select evaluation indicators and construct a quantitative calculation method for this influencing factor; Step 3: For the "construction and application of shore power facilities" among the influencing factors, select evaluation indicators and construct a quantitative calculation method for this influencing factor; Step 4: For the "application of energy-saving technology" among the influencing factors, select evaluation indicators and construct a quantitative calculation method for this influencing factor; Step 5: For the "energy efficiency and carbon dioxide emission level" in the influencing factors, select evaluation indicators and construct a quantitative calculation method for the influencing factors; Step 6: For the "resource intensiveness and recycling" in the influencing factors, select evaluation indicators and construct a quantitative calculation method for this influencing factor; Step 7, assign impact weights to the evaluation indicators in steps 2 to 6, and calculate the energy conservation and carbon reduction level score of the container port terminal.

2. A quantitative evaluation method for energy conservation and carbon reduction at a container port terminal according to claim 1, characterized in that: The specific process of step 1 is as follows: Step 11, through literature review and field research, select five key factors that affect the energy conservation and carbon reduction level of container port terminals: "clean energy and renewable energy application", "shore power facility construction and application", "energy-saving technology application", "energy efficiency and carbon dioxide emission level", and "resource intensiveness and recycling"; Step 12, assign the impact weights of the five key factors in step 11. Considering that the above five factors have basically the same impact on the energy conservation and carbon reduction level of container port terminals, the impact weights are all assigned 0.2, that is, the impact weight η1 of clean energy and renewable energy application, the impact weight η2 of shore power facility construction and application, the impact weight η3 of energy-saving technology application, the impact weight η4 of energy efficiency and carbon dioxide emission level, and the impact weight η5 of resource intensiveness and recycling are all 0.

2.

3. A quantitative evaluation method for energy conservation and carbon reduction level of container port terminals according to claim 1, characterized in that: The specific process of step 2 is as follows: Step 21, for the influencing factor of "application of clean energy and renewable energy", select two evaluation indicators: "ratio of clean energy consumption to comprehensive energy consumption of ports and terminals" and "annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year"; Step 22, calculate the ratio of clean energy consumption to the comprehensive energy consumption of the port terminal. Clean energy refers to energy with low emissions, low pollution, and environmental friendliness, including low-pollution fossil energy including natural gas, and secondary energy obtained by conversion of other forms of energy that does not emit pollutants during use, including electric energy and hydrogen energy; The comprehensive energy consumption of ports and terminals includes the energy consumption of loading and unloading production and auxiliary production. The calculation method of the energy consumption of loading and unloading production is: In the formula, E a Energy consumption for loading and unloading production, tce; E ai The physical amount of energy consumption for loading and unloading production, t, 10 4 kW·h or 10 4 m 3 ; K i is the standard coal conversion coefficient of the i-th energy; The calculation method of auxiliary production energy consumption is: In the formula, E b Energy consumption for auxiliary production, tce; E bi The amount of physical energy consumed to assist in the production of the i-th energy source, t, 10 4 kW·h or 10 4 m 3 ; The calculation method for comprehensive energy consumption of ports and terminals is as follows: AND z =And a +E b In the formula, E z is the total energy consumption, tce; The calculation method of clean energy consumption is: In the formula, E q is the clean energy consumption, tce; E qi The physical quantity of clean energy consumption for electricity, natural gas, liquefied natural gas, heat and steam, t, 10 4 kW·h or 10 4 m 3 ; Ratio of clean energy consumption to comprehensive energy consumption of ports and terminals It can be expressed as: When the calculated ratio When the score is greater than or equal to 80%, the score of this item is 100 points; when When the score is greater than or equal to 60% and less than 80%, the score of this item is 75 points; when When the percentage is greater than or equal to 50% and less than 60%, this item is scored 50 points; when If the score is less than 50%, no score will be awarded for this item, and the final score for this item will be represented by A1. Step 23, calculate the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year. The renewable energy used in ports and terminals includes solar energy, wind energy and geothermal energy. The annual growth rate of renewable energy compared with the previous year β can be expressed as: Where W a is the annual utilization of renewable energy such as photovoltaic power generation, wind-solar hybrid power generation, etc. in this year, kW·h; W b is the annual utilization of renewable energy in the previous year, kW·h. When the calculated β value is greater than or equal to 10%, this item is scored 100 points; when β is greater than or equal to 5% and less than 10%, this item is scored 75 points; when β is positive but less than 5%, this item is scored 50 points; when β is less than or equal to 0, this item is scored nothing. The final score of this item is represented by A2.

4. The method for quantitatively evaluating the energy conservation and carbon reduction level of a container port terminal according to claim 1 is characterized by: The specific process of step 3 is as follows: Step 31, for the influencing factors of "construction and application of shore power facilities", select three evaluation indicators: "proportion of the number of shore power facility berths", "proportion of the number of times ships use shore power facilities", and "proportion of the increase in electricity consumption of shore power facilities compared with the previous year"; Step 32, calculate the ratio of the number of berths with shore power supply capability to the total number of berths. The shore power supply capability means that the shore power equipment is in normal operation, and the shore power equipment test report result is qualified and within the validity period. The ratio γ of the number of berths with shore power supply capability to the total number of berths can be expressed as: Where N a N is the number of berths with shore power supply capability; q is the total number of berths. When γ is 100%, this item is scored 100 points; when γ is greater than or equal to 70% and less than 100%, this item is scored 75 points; when γ is greater than or equal to 50% and less than 70%, this item is scored 50 points; when γ is less than 50%, this item is not scored, and the final score of this item is represented by A3; Step 33, calculate the ratio of the number of times that ships with power receiving facilities actually use shore power to the number of times that such ships should use shore power according to regulations. Ships that should use shore power according to regulations refer to ships with shore power receiving facilities and whose engine start time during berthing meets the prescribed requirements. The regulations include berthing ships at inland rivers and river ports for 2 hours and berthing ships at coastal ports for 3 hours. The ratio of the number of times that ships with power receiving facilities actually use shore power to the number of times that such ships should use shore power according to regulations δ can be expressed as: Where N s The number of times that ships with power receiving facilities actually use shore power; N d The number of times such ships should use shore power according to regulations. When δ is greater than or equal to 90%, this item is scored 100 points; when δ is greater than or equal to 70% and less than 90%, this item is scored 75 points; when δ is greater than or equal to 50% and less than 70%, this item is scored 50 points; when δ is less than 50%, this item is scored no points, and the final score of this item is represented by A4; Step 34, calculate the growth rate ε of the electricity consumption of shore power facilities compared with the previous year, which can be expressed as: Where D b is the electricity consumption of shore power facilities this year, kW·h; D s It is the electricity consumption of shore power facilities in the previous year, kW·h. When ε is greater than or equal to 30%, this item is scored 100 points; when ε is greater than or equal to 20% and less than 30%, this item is scored 75 points; when ε is greater than or equal to 10% and less than 20%, this item is scored 50 points; when ε is less than 10%, this item is scored nothing. The final score of this item is represented by A5.

5. The method for quantitatively evaluating the energy conservation and carbon reduction level of a container port terminal according to claim 1 is characterized by: The specific process of step 4 is as follows: Step 41, for the influencing factor of "energy-saving technology application", select five evaluation indicators: "the proportion of the number of E-RTGs and RMGs", "the proportion of large electric machinery variable frequency speed regulation technology", "the proportion of large electric machinery potential energy recovery technology", "the proportion of outdoor lighting green lamps", and "the proportion of energy-saving products"; Step 42, calculate the ratio α of the number of electric tire gantry cranes E-RTG and rail-mounted gantry cranes RMG to the total number of yard cranes, which can be expressed as: Where M e is the number of E-RTGs; M r is the number of RMG; M c is the total number of field bridges. When α is greater than or equal to 90%, this item is scored 100 points; when α is greater than or equal to 70% and less than 90%, this item is scored 75 points; When α is greater than or equal to 50% and less than 70%, this item is scored 50 points; when α is less than 50%, this item is not scored, and the final score of this item is represented by A6; Step 43, calculate the proportion of large electric machinery variable frequency speed regulation technology application. The proportion of large electric machinery variable frequency speed regulation technology application refers to the proportion of the number of large machinery using variable frequency speed regulation technology to the number of all electric-driven large machinery, which is represented by ∈: Where, T b The number of large-scale machines using variable frequency speed regulation technology; T s The number of all large-scale machines driven by electricity. When ∈ is greater than or equal to 80%, this item is scored 100 points; when ∈ is greater than or equal to 50% and less than 80%, this item is scored 75 points; when variable frequency speed regulation technology is used but the proportion ∈ is less than 50%, this item is scored 50 points; If variable frequency speed regulation technology is not used, ∈ is 0, and this item is not scored. The final score of this item is represented by A7; Step 44, calculate the application ratio of potential energy recovery technology for large electric machinery. The application ratio of potential energy recovery technology for large electric machinery refers to the ratio of the number of large machinery using potential energy recovery technology to the number of all electric-driven large machinery applicable to the technology. The electric-driven machinery applicable to the technology includes gantry cranes, quay cranes, E-RTGs and RMGs. The ratio is expressed as μ: In the formula, S s is the number of large-scale machines using potential energy recovery technology; S a The number of all electrically driven large machines that are applicable to potential energy recovery technology. When μ is greater than or equal to 50%, this item is scored 100 points; when μ is greater than or equal to 30% and less than 50%, this item is scored 75 points; when potential energy recovery technology is used but the proportion μ is less than 30%, this item is scored 50 points; if potential energy recovery technology is not used and μ is 0, this item is not scored. The final score of the item is represented by A8; Step 45, calculate the power ratio of outdoor lighting green lamps. Outdoor lighting green lamps refer to lamps used for on-site production operations in the port that meet the requirements of energy saving, environmental protection, safety, and comfort. Lamp types include LED lamps, wind-solar complementary lamps, and high-efficiency reflective lamps. The lamps are used in docks, yards, and roads within the port area. The ratio τ of outdoor lighting green lamps can be expressed as: Where W g The power of outdoor green lighting fixtures, kW; W s is the power of outdoor lighting fixtures, kW. When the calculated ratio τ is greater than or equal to 80%, this item scores 100 points; When τ is greater than or equal to 60% and less than 80%, this item is scored 75 points; when τ is greater than or equal to 50% and less than 60%, this item is scored 50 points; when τ is less than 50%, this item is not scored, and the final score of this item is represented by A9; Step 46, calculate the proportion of energy-saving products. The statistical scope of energy-saving products includes general equipment such as transformers, motors, pumps and fans. According to the "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Power Transformers" GB20052-2020, "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Electric Motors" GB18613-2020, "Energy Efficiency Limit Values ​​and Energy Efficiency Evaluation Values ​​for Clean Water Centrifugal Pumps" GB19762-2007, and "Energy Efficiency Limit Values ​​and Energy Efficiency Grades for Ventilators" GB19761-2020, products that meet the requirements of the above standards are energy-saving products. The proportion of energy-saving products It is expressed as: In the formula, C j The number of energy-saving products for general equipment such as transformers, motors, pumps, fans, etc.; C s is the total number of general equipment such as transformers, motors, pumps, fans, etc. When the percentage is greater than or equal to 30%, the score for this item is 100 points; when When the percentage is greater than or equal to 20% and less than 30%, the score for this item is 75 points; when When the percentage is greater than or equal to 10% and less than 20%, this item is worth 50 points. If the percentage is less than 10%, no points will be awarded for this item, and the final score for this item will be A. 10 express.

6. A quantitative evaluation method for energy conservation and carbon reduction level of container port terminals according to claim 1, characterized in that: The specific process of step 5 is as follows: Step 51, for the influencing factors of "energy efficiency and carbon dioxide emission level", select two evaluation indicators of "unit energy consumption level" and "annual production unit throughput carbon dioxide emission"; Step 52, calculate the comprehensive energy consumption per unit throughput of the port production. The comprehensive energy consumption per unit throughput of the port production refers to the comprehensive energy consumption of production consumed by the port to complete the throughput of 10,000 TEUs, which is the ratio of the comprehensive energy consumption of port production to the cargo throughput of the port during the statistical period, and is expressed as: Where k is the terminal fitness correction coefficient; T is the throughput of the container terminal, 10 4 The comprehensive energy consumption per unit throughput of the port calculated by 10,000 TEU is less than or equal to 24tce / 10 4 TEU, this item scores 100 points; ω is greater than 24tce / 10 4 TEU, but less than or equal to 28tce / 10 4 TEU, this item scores 75 points; ω is greater than 28tce / 10 4 TEU, but less than or equal to 45tce / 10 4 TEU, this item scores 50 points; ω is greater than 45tce / 10 4 During TEU, this item will not be scored, and the final score of this item will be A. 11 express; Step 53, calculate the annual carbon dioxide emissions per unit of production throughput. The carbon dioxide emissions per unit of port production throughput refers to the comprehensive production energy consumed by the port to complete every 10,000 TEUs of throughput, among which electricity and steam are regarded as zero-carbon emission energy types in the port and are not included. The amount of carbon dioxide emitted is the ratio of the carbon dioxide emissions generated by the comprehensive energy consumption of the port production in one year to the port cargo throughput, expressed as ρ: Where P c The amount of carbon dioxide emitted for the production of comprehensive energy for the port is calculated by multiplying the various energy consumption and the carbon dioxide emission coefficient, which can be expressed as: In the formula, Z i is the carbon dioxide emission coefficient of the i-th energy source, and the change ratio θ of the annual production unit throughput carbon dioxide emission compared with the previous year is calculated, which can be expressed as: In the formula, ρ c and ρ l are the carbon dioxide emissions per unit of production throughput in the current year and the previous year respectively; P l The amount of carbon dioxide emitted by the port’s comprehensive energy production in the previous year; T c and T l The throughput of the current year and the previous year are evaluated respectively. When the calculated change ratio θ is less than or equal to -0.6%, this item is scored 100 points; when θ is less than or equal to -0.3% but greater than -0.6%, this item is scored 75 points; when θ is less than 0 but greater than -0.3%, this item is scored 50 points; when θ is greater than or equal to 0, this item is not scored. The final score of this item is A 12 express.

7. A quantitative evaluation method for energy conservation and carbon reduction level of container port terminals according to claim 1, characterized in that: The specific process of step 6 is as follows: Step 61, for the influencing factor of "resource concentration and recycling", select two evaluation indicators, namely "proportion of direct loading and direct pickup of goods" and "proportion of throughput reaching the designed throughput capacity"; Step 62, consider the change in the proportion of goods using direct loading and direct taking technology compared with the previous year. Direct loading and direct taking means that the loaded and unloaded goods enter and leave the port directly, do not need to be transferred from the port yard, and do not occupy the storage resources of the port enterprise. Among them, direct loading means that the goods are directly loaded onto the ship from outside the port through transportation equipment, and direct taking means that the goods are directly shipped from the ship through transportation equipment. The proportion of goods using direct loading and direct taking technology, that is, the proportion of goods directly entering and leaving the port to the throughput, therefore, the change rate of the proportion of direct loading and direct taking technology compared with the previous year χ can be expressed as: In the formula, B c and B l The direct cargo inflow and outflow volume of the current year and the previous year are evaluated respectively. 4 TEU, when χ is greater than or equal to 20%, this item is scored 100 points; when χ is greater than or equal to 10% but less than 20%, this item is scored 75 points; when χ is a positive value but less than 10%, this item is scored 50 points; when χ is less than or equal to 0, this item is not scored, and the final score of this item is A. 13 express; Step 63, calculate the ratio v of the throughput reaching the designed throughput capacity: Where Q is the designed throughput capacity of the port terminal, 10 4 TEU, when v is greater than or equal to 90%, this item is scored 100 points; when v is greater than or equal to 70% but less than 90%, this item is scored 75 points; when v is greater than or equal to 50% but less than 70%, this item is scored 50 points; when υ is less than 50%, this item is not scored, and the final score of this item is A 14 express.

8. A quantitative evaluation method for energy conservation and carbon reduction at container port terminals according to claim 1, characterized in that: The specific process of step 7 is as follows: Step 71, assigning influence weights to the evaluation indicators in steps 2 to 6, and assigning weights λ1 and λ2 to the two evaluation indicators of "the ratio of clean energy consumption to the comprehensive energy consumption of ports and terminals" and "the annual growth rate of renewable energy such as solar energy and wind energy compared with the previous year" in step 21, respectively, and satisfying: λ1+λ2=1 For the three evaluation indicators in step 31, namely, "the proportion of shore power berths", "the proportion of ships using shore power facilities" and "the proportion of shore power facilities electricity consumption growth compared with the previous year", weights λ3, λ4 and λ5 are assigned respectively, and the following conditions are met: λ3+λ4+λ5=1 For the five evaluation indicators in step 41, namely, "the proportion of E-RTG and RMG quantity", "the proportion of large electric machinery variable frequency speed regulation technology", "the proportion of large electric machinery potential energy recovery technology", "the proportion of outdoor lighting green lamps" and "the proportion of energy-saving products", the weights λ6, λ7, λ8, λ9 and λ10 are assigned respectively. 10 , and satisfy: λ6+λ7+λ8+λ9+λ 10 =1 For the two evaluation indicators "unit energy consumption level" and "annual production unit throughput carbon dioxide emissions" in step 51, weights λ are assigned respectively. 11 and λ 12 , and satisfy: l 11 +λ 12 =1 For the two evaluation indicators in step 61, "the proportion of direct loading and direct pickup of goods" and "the proportion of throughput reaching the designed throughput capacity", the weights λ are assigned respectively. 13 and λ 14 , and satisfy: l 13 +λ 14 =1 Step 72, calculate the final container port terminal energy conservation and carbon reduction level score G: G=η1(λ1A1+λ2A2)+η2(λ3A3+λ4A4+λ5A5)+η3(λ6A6+λ7A7+λ8A8+λ9A9+λ 10 A 10 )+η4(λ 11 A 11 +λ 12 A 12 )+η5(λ 13 A 13 +λ 14 A 14 ) The calculated energy conservation and carbon reduction level G has a score range of 0-100. The higher the score, the higher the energy conservation and carbon reduction level of the container port terminal.

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