An online monitoring system for ship carbon emissions

Abstract

Provided is a ship carbon emission online monitoring system, which uses a common emission analysis device to complete carbon emission monitoring of various power equipment, including: a ship-borne flue gas emission online monitoring device (multiple flue gas parameter monitors, multiple sampling probes, multiple gas pipelines, and an emission analysis device) and a processor; multiple flue gas parameter monitors are each set on the exhaust pipe of the corresponding power equipment to obtain the first flue gas parameter corresponding to each exhaust pipe; multiple sampling probes are each set on the exhaust pipe of the corresponding power equipment; the emission analysis device is shared by multiple power equipment, and can obtain the flue gas in the exhaust pipe of one power equipment each time, and analyze the flue gas to obtain the second flue gas parameter corresponding to the exhaust pipe; the processor is used to determine the instantaneous amount and / or cumulative amount of carbon emission of the ship according to the first and second flue gas parameters corresponding to the exhaust pipe; the processor can also calculate the carbon intensity according to the voyage operation information and the cumulative amount. Improve the accuracy and reliability of ship carbon emission measurement.

Description

Technical Field

[0001] The present application relates to the technical field of ship carbon emission monitoring and ship carbon accounting, and in particular to an online monitoring system for ship carbon emission. Background Art

[0002] As carbon emission regulation policies continue to strengthen, shipping companies must comply with relevant regulatory requirements. For example, from January 1, 2018, the EU requires ships with a gross tonnage of 5,000 GT or more sailing to, from or between EU ports to submit monthly and annual CO2 emission reports; from January 1, 2019, the International Maritime Organization also requires international ships with a gross tonnage of 5,000 GT or more to report to it relevant data such as fuel consumption, travel distance and sailing time.

[0003] Ship carbon emission monitoring systems have become a key tool for shipping companies to operate in compliance. The current mature carbon emission monitoring method is based on portable emission analysis devices. This method can only be used to carry out monitoring on ships for a period of time. The monitoring results are random and difficult to reflect the emission characteristics of the entire ship during operation. There are also related technologies that can achieve online monitoring of ship carbon emissions through carbon emission monitoring systems installed in the exhaust main pipe of power equipment. For ships with multiple exhaust pipes, such as ships with main engines, generators or other emission equipment, it is impossible to fully monitor the overall carbon emissions of the ship; and if emission monitoring equipment is installed on multiple exhaust pipes at the same time, there are many problems such as high system cost, large space occupied and high maintenance difficulty. Summary of the invention

[0004] The embodiment of the present application provides an online monitoring system for ship carbon emissions. By sharing an emission analysis device, carbon emissions of various power equipment on the ship are monitored and analyzed, so that more comprehensive and accurate carbon emissions monitoring results can be obtained, and the system cost is low and the space occupied is small.

[0005] In a first aspect, the present application provides an online monitoring system for carbon emissions from a ship, wherein the ship includes a plurality of power equipment with exhaust pipes, and the online monitoring system for carbon emissions from a ship shares an emission analysis device to complete carbon emission monitoring of each power equipment, and the online monitoring system for carbon emissions from a ship includes:

[0006] A plurality of flue gas parameter monitors, each of which is arranged on an exhaust pipe of a corresponding power device to obtain a first flue gas parameter corresponding to each exhaust pipe;

[0007] A plurality of sampling probes, each of which is arranged on an exhaust pipe of a corresponding power device;

[0008] A plurality of gas pipelines, each of which is connected to a corresponding sampling probe;

[0009] an emission analysis device, the emission analysis device being connected to the plurality of gas pipelines, the emission analysis device being capable of acquiring the flue gas in the exhaust pipe of one of the power equipment through one of the gas pipelines and the corresponding sampling probe each time, and analyzing the flue gas to obtain a second flue gas parameter corresponding to the exhaust pipe;

[0010] A processor, the processor is used to determine the carbon emission data of the power equipment corresponding to the exhaust pipe according to the first flue gas parameter and the second flue gas parameter corresponding to the exhaust pipe; and determine the carbon emission monitoring result of the ship according to the carbon emission data of each of the multiple power equipment, the carbon emission monitoring result including: instantaneous carbon emission and cumulative carbon emission.

[0011] The present application discloses an online monitoring system for ship carbon emissions, wherein the system uses a common emission analysis device to complete carbon emission monitoring of each power equipment, and the system comprises: a shipborne flue gas emission online monitoring device (a plurality of flue gas parameter monitors, a plurality of sampling probes, a plurality of gas pipelines, and an emission analysis device) and a processor; the plurality of flue gas parameter monitors are respectively arranged on the exhaust pipe of the corresponding power equipment to obtain the first flue gas parameter corresponding to each exhaust pipe; the plurality of sampling probes are respectively arranged on the exhaust pipe of the corresponding power equipment; the plurality of gas pipelines are respectively connected to the corresponding sampling probes; the emission analysis device is connected to the plurality of gas pipelines, and the emission analysis device is shared by a plurality of power equipment, and can obtain the flue gas in the exhaust pipe of one power equipment through one gas pipeline and the corresponding sampling probe each time, and analyze the flue gas to obtain the second flue gas parameter corresponding to the exhaust pipe; the processor is used to determine the carbon emission data of the power equipment corresponding to the exhaust pipe according to the first flue gas parameter and the second flue gas parameter corresponding to the exhaust pipe; and determine the carbon emission monitoring result of the ship according to the carbon emission data of each of the plurality of power equipment, and the carbon emission monitoring result includes the instantaneous amount of carbon emission and the cumulative amount of carbon emission. Optionally, the processor can also obtain the ship's operating information, such as sailing distance, sailing speed and deadweight, and determine the ship's carbon intensity based on the accumulated carbon emissions and operating information. In the embodiment of the present application, multiple sampling probes are used to transmit gas samples from each exhaust pipe to a common carbon emission analysis device through a heat tracing pipe, and the carbon emission of the ship is monitored online based on the carbon emission analysis device. The emission data generated by different power equipment is monitored based on multiple exhaust pipes of the ship, and the data is used to calculate carbon emissions, which significantly improves the measurement accuracy and reliability and saves monitoring costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 A schematic diagram of an online monitoring system for ship carbon emissions according to an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of an on-line monitoring device for shipborne flue gas emissions in an embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of the on-line monitoring process of shipboard flue gas emissions in an embodiment of the present application;

[0016] Figure 4 It is a schematic diagram of the process of online monitoring and calculation of ship carbon emissions in the implementation mode of this application. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0019] Please combine Figure 1 See also Figure 2 , Figure 2 It is a schematic block diagram of an on-line monitoring device for shipboard flue gas emissions in an embodiment of the present application.

[0020] The shipboard flue gas emission online monitoring device is used to monitor the carbon emission data of the ship. The ship carbon emission online monitoring system in the embodiment of the present application can be applied to a ship including a plurality of power equipment 10 with exhaust pipes 11.

[0021] The power equipment 10 having the exhaust pipe 11 includes but is not limited to at least one of the following: a ship main engine, a ship auxiliary engine, and a boiler. Figure 1 As shown, the power equipment 10 of the ship includes five units, namely a ship main engine 1, a ship auxiliary engine 1, a ship auxiliary engine 2, a ship auxiliary engine 3, and a boiler.

[0022] like Figure 2 As shown, the ship carbon emission online monitoring system includes: multiple flue gas parameter monitors 21, multiple sampling probes 22, multiple gas pipelines 23, an emission analysis device 30 and a processor. The multiple flue gas parameter monitors 21, multiple sampling probes 22, multiple gas pipelines 23, and an emission analysis device 30 can be called a shipborne flue gas emission online monitoring device.

[0023] The plurality of flue gas parameter monitors 21 are each disposed on the exhaust pipe 11 of the corresponding power equipment 10 to obtain the first flue gas parameter corresponding to each exhaust pipe 11. Figure 1 As shown, five flue gas parameter monitors 21 are arranged on each exhaust pipe 11 in a one-to-one correspondence.

[0024] For example, the first flue gas parameter may include exhaust flow rate, exhaust pressure, and exhaust pressure. Among them, the dimension of exhaust pressure may be KPa (kilopascal), the dimension of exhaust temperature may be ℃ (degrees Celsius), and the dimension of exhaust flow rate may be m / s (meters per second); of course, it is not limited thereto, for example, the dimension of exhaust temperature may also be Fahrenheit. Optionally, the flue gas parameter monitor 21 may be an integrated temperature, pressure, and flow rate monitor.

[0025] For example, the flue gas parameter monitor 21 may be disposed at the exhaust port of the exhaust pipe 11 of the power equipment 10 to obtain a more accurate first flue gas parameter.

[0026] For example, the flue gas parameter monitor 21 is installed by using threaded fixing, and the pitot tube corresponding to the flue gas parameter monitor 21 extends into the radius of each exhaust pipe 11 and is installed vertically.

[0027] The plurality of sampling probes 22 are each disposed on the exhaust pipe 11 of the corresponding power device 10, and the plurality of gas pipelines 23 are each connected to the corresponding sampling probe 22. Figure 1 As shown, five sampling probes 22 are arranged on five exhaust pipes 11 in a one-to-one correspondence.

[0028] For example, the Pitot tube of the sampling probe 22 is fixed by thread during installation, and the sampling probe 22 should extend into at least 80% of the diameter of the exhaust pipe 11 to improve the accuracy of flue gas sampling.

[0029] The emission analysis device 30 is connected to the multiple gas pipelines 23, and the gas pipelines 23 and the connection must be well sealed to prevent leakage. For example, a heating pipe is used to connect the sampling probe 22 to the emission analysis device 30. The gas pipeline 23 is a heating pipe, and the heating pipe is, for example, a steam heating pipe or an electric heating pipe to ensure that the flue gas sampled by the sampling probe 22 is more stable, thereby ensuring the accuracy of the carbon emission data.

[0030] The emission analysis device 30 may be arranged in a cabinet, which may be referred to as an emission analyzer cabinet. The emission analyzer cabinet may be installed in a position on board the ship that is convenient for operation and maintenance.

[0031] The emission analysis device 30 can obtain the flue gas in the exhaust pipe 11 of one power device 10 through one gas pipeline 23 and the corresponding sampling probe 22 each time, and analyze the flue gas to obtain the second flue gas parameter corresponding to the exhaust pipe 11 .

[0032] For example, see Figure 2 , the emission analysis device 30 obtains the flue gas in the exhaust pipe 11 of the ship main engine 1 through the first gas pipeline 23 and the corresponding sampling probe 22 at 0-12 minutes, and analyzes to obtain the second flue gas parameter corresponding to the first exhaust pipe 11; obtains the flue gas in the exhaust pipe 11 of the ship auxiliary engine 1 through the second gas pipeline 23 and the corresponding sampling probe 22 at 12-24 minutes, and analyzes to obtain the second flue gas parameter corresponding to the second exhaust pipe 11; and so on, the second flue gas parameter corresponding to the third exhaust pipe 11 is obtained at 24-36 minutes, the second flue gas parameter corresponding to the fourth exhaust pipe 11 is obtained at 36-48 minutes, and the second flue gas parameter corresponding to the fifth exhaust pipe 11 is obtained at 48-60 minutes. After that, the second flue gas parameter corresponding to each exhaust pipe 11 can be obtained again in this cycle.

[0033] In some embodiments, an intake valve is provided on the sampling probe 22 and / or the gas pipeline 23 and / or the emission analysis device 30. The emission analysis device 30 controls the opening of the intake valve corresponding to one exhaust pipe 11 each time, so that the flue gas in the exhaust pipe 11 of one power equipment 10 is obtained through one gas pipeline 23 and the corresponding sampling probe 22 each time.

[0034] See also Figure 3 , an air intake regulating valve is provided on the emission analysis device 30, and the emission analysis device 30 controls the air intake regulating valve corresponding to the first gas pipeline 23 to open at 0-12 minutes to analyze the flue gas sampled from the first exhaust pipe 11; and controls the air intake regulating valve corresponding to the first and second gas pipelines 23 to open at 12-24 minutes to analyze the flue gas sampled from the second exhaust pipe 11. By sharing the same emission analysis device 30 to monitor and analyze the flue gas emitted by multiple power equipment 10 in turn online, the occupied space, maintenance difficulty and cost of the ship carbon emission online monitoring system can be reduced, and multiple power equipment 10 of the ship can be fully monitored, thereby obtaining more comprehensive and accurate carbon emission monitoring results.

[0035] Exemplarily, the second flue gas parameter corresponding to the exhaust pipe 11 includes exhaust humidity and CO2 concentration corresponding to the exhaust pipe 11. The dimension of exhaust humidity is, for example, percentage (%), and the dimension of CO2 concentration is, for example, ppm (parts per million, gas volume percentage content), but it is certainly not limited thereto.

[0036] For example, Figure 3 As shown, the emission analysis device 30 may include a hygrometer, a CO2 infrared gas analyzer, a fine filter, a condenser, a peristaltic pump, an air intake regulating valve, etc. Exemplarily, the flue gas obtained by the emission analysis device 30 from the gas pipeline 23 enters the hygrometer through the air intake regulating valve, and the hygrometer can obtain the humidity of the flue gas (or the exhaust humidity of the exhaust pipe 11), and the flue gas then enters the fine filter for filtration and the condenser for condensation, and then enters the CO2 infrared gas analyzer after being filtered again, and the CO2 infrared gas analyzer can obtain the CO2 concentration of the flue gas.

[0037] Optionally, the processor may be disposed on the emission analysis device 30, but is not limited thereto. For example, the processor may be disposed on a terminal device outside the emission analysis device 30, such as a computer. The processor may obtain the second flue gas parameter corresponding to each exhaust pipe 11 from the emission analysis device 30. For ease of description, the embodiment of the present application is mainly described by taking the processor disposed inside the emission analysis device 30 as an example.

[0038] The processor can at least be used to provide computing capabilities, for example, to calculate the required carbon emission data and carbon emission monitoring results according to the flue gas parameters. Exemplarily, the processor can execute a computer program and realize the calculation of the required carbon emission data and carbon emission monitoring results according to the flue gas parameters when executing the computer program.

[0039] Optional, such as Figure 3 As shown, each flue gas parameter monitor 21 is connected to the processor via a cable, and the processor can obtain the first flue gas parameter corresponding to each exhaust pipe 11 from the flue gas parameter monitor 21. Of course, it is not limited to this. For example, the flue gas parameter monitor 21 can be connected to the processor via wireless communication.

[0040] In some embodiments, the processor may also obtain the ship's operational information (or emission monitoring data), such as obtaining the ship's water speed and sailing distance through a Doppler log, obtaining the ship's position information through a Beidou satellite navigation system, and obtaining the ship's carrying capacity through the ship's cargo list. For example, the processor may communicate with a Doppler log or a Beidou satellite navigation system terminal through wired or wireless communication to obtain corresponding operational information.

[0041] For example, a Doppler log is installed under the hull and close to the centerline of the hull. It is necessary to drill a hole to install the Doppler log sensor, lead the cable of the Doppler log sensor into the cabin and connect it to the display and control unit of the Doppler log, and also fix it with a bracket to ensure that the Doppler log sensor is perpendicular to the hull to ensure accurate measurement of the ship's water speed and sailing distance.

[0042] For example, the BeiDou receiver is installed on the deck or in the wheelhouse of the ship, away from metal objects or electronic equipment, and fixed with a bracket. Connect the BeiDou receiver to the ship's power system and ensure that the power supply is stable and reliable. The BeiDou antenna is installed high on the ship, avoiding installation near equipment that may generate electromagnetic interference to obtain the best satellite signal reception.

[0043] In some embodiments, after all equipment of the ship carbon emission online monitoring system is installed on the ship, the flue gas parameter monitor 21 and the emission analysis device 30 are turned on and preheated. The ship carbon emission online monitoring system, Doppler log and Beidou can also be calibrated separately to ensure accurate measurement of emission monitoring data.

[0044] For example, the emission-related parameters used by the ship carbon emission online monitoring system during ship operation are shown in Table 1:

[0045] Table 1 Emission related parameters

[0046]

[0047] The processor is used to determine the carbon emission data of the power equipment 10 corresponding to the exhaust pipe 11 according to the first flue gas parameter and the second flue gas parameter corresponding to the exhaust pipe 11; and determine the carbon emission monitoring result of the ship according to the carbon emission data of each of the multiple power equipment 10. The carbon emission monitoring result includes: instantaneous carbon emission and cumulative carbon emission.

[0048] Optionally, the carbon emission monitoring result may also include the carbon intensity of the ship. The processor may also be used to obtain the operation information of the current voyage of the ship, and determine the carbon intensity of the ship based on the operation information of each of the multiple voyages and the accumulated carbon emissions of the ship in each of the multiple voyages.

[0049] The ship carbon emission online monitoring system of the embodiment of the present application can precisely monitor the carbon emission of different power equipment 10 of the ship, and more comprehensively capture the carbon emission and carbon intensity data of the ship. It realizes carbon emission monitoring of ships with multiple exhaust pipes 11, and multiple exhaust pipes 11 share the same emission analysis device 30, which solves the problems of high system cost, large space occupation and high maintenance difficulty.

[0050] In some embodiments, the emission analysis device 30 obtains the flue gas in the exhaust pipe 11 of a power device 10 within a first preset time period each time, and analyzes the flue gas to obtain a second flue gas parameter corresponding to the exhaust pipe 11 .

[0051] For ease of explanation, the embodiment of the present application is mainly described by taking the first preset time length of 12 minutes, i.e. 720 seconds, as an example. For example, the first flue gas parameter and the second flue gas parameter corresponding to the first exhaust pipe 11 are sampled at 0-12 minutes of each hour, the first flue gas parameter and the second flue gas parameter corresponding to the second exhaust pipe 11 are sampled at 12-24 minutes of each hour, the first flue gas parameter and the second flue gas parameter corresponding to the third exhaust pipe 11 are sampled at 24-36 minutes of each hour, the first flue gas parameter and the second flue gas parameter corresponding to the fourth exhaust pipe 11 are sampled at 36-48 minutes of each hour, and the first flue gas parameter and the second flue gas parameter corresponding to the fifth exhaust pipe 11 are sampled at 48-60 minutes of each hour.

[0052] Optionally, the sampling frequency of the emission analysis device 30 and the flue gas parameter monitor 21 is once per second. For example, the emission analysis device 30 collects the CO2 concentration and humidity data of the corresponding exhaust pipe 11 every second in real time, and the flue gas parameter monitor 21 collects the exhaust temperature, exhaust pressure and exhaust flow rate of the corresponding exhaust pipe 11 every second in real time. Of course, the sampling frequency is not limited to once per second.

[0053] Exemplarily, when the processor determines the carbon emission data of the power equipment 10 corresponding to the exhaust pipe 11 based on the first flue gas parameter and the second flue gas parameter corresponding to the exhaust pipe 11, it is used to: determine the instantaneous amount of carbon emissions from the exhaust pipe 11 based on the first flue gas parameter and the second flue gas parameter of the exhaust pipe 11 at each sampling moment; determine the cumulative amount of carbon emissions from the power equipment 10 corresponding to the exhaust pipe 11 within the preset statistical period based on the cumulative value of the instantaneous amount of carbon emissions at multiple sampling moments of the exhaust pipe 11 within the first preset time length, and the ratio of the preset statistical period to the first preset time length.

[0054] Exemplarily, the processor determines the instantaneous amount of carbon emissions from the exhaust pipe 11 based on the following formula:

[0055]

[0056] in, represents the instantaneous amount of carbon emissions from the i-th exhaust pipe 11 at the t-th sampling moment (in kilograms per second kg / s), represents the CO2 concentration of the i-th exhaust pipe 11 at the t-th sampling time (in ppm), S represents the pipe cross-sectional area of ​​the i-th exhaust pipe 11, represents the molar mass of CO2 (in kilograms per mole kg / mol), qi represents the exhaust flow rate of the ith exhaust pipe 11 at the tth sampling moment (in meters per second m / s), Ti represents the exhaust temperature of the ith exhaust pipe 11 at the tth sampling moment (in degrees Celsius); P i represents the exhaust pressure of the i-th exhaust pipe 11 at the t-th sampling time (in kilopascals KPa), P0 represents the atmospheric pressure (which can be 100 KPa), W i Indicates the exhaust humidity (in %) at the tth sampling moment of the i-th exhaust pipe 11. The instantaneous amount of carbon emissions from the exhaust pipe 11 is calculated using the real-time data of CO2 concentration, humidity, exhaust temperature, exhaust pressure and exhaust flow rate of the corresponding exhaust pipe 11 collected every second.

[0057] In some embodiments, the instantaneous amounts of carbon emissions from all exhaust pipes 11 may be superimposed to obtain the instantaneous amount of carbon emissions from the ship.

[0058] For example, the preset statistical period may be one hour, but it is not limited thereto. For example, the preset statistical period may also be 2 hours, 8 hours, 12 hours, 24 hours, etc. For ease of explanation, this application mainly takes the preset statistical period of one hour, i.e., 3600 seconds, as an example for explanation.

[0059] Exemplarily, according to the cumulative value of the instantaneous amount of carbon emissions of the exhaust pipe 11 at multiple sampling moments within the first preset time period, and the ratio of the preset statistical period to the first preset time period, the cumulative amount of carbon emissions of the power equipment 10 corresponding to the exhaust pipe 11 within the preset statistical period is determined, which can be expressed as follows:

[0060]

[0061] in, represents the cumulative amount of carbon emissions from the power equipment 10 corresponding to the i-th exhaust pipe 11 within the preset statistical period, It represents the instantaneous amount of carbon emissions at the t-th sampling moment of the i-th exhaust pipe 11, T0 represents the first preset duration, and T1 represents the preset statistical period. For example, the first preset duration is 720 seconds, the preset statistical period is 3600 seconds, and the sampling frequency of the emission analysis device 30 and the flue gas parameter monitor 21 is once per second; wherein the average carbon emissions per second of the power equipment 10 corresponding to the i-th exhaust pipe 11 are also used for the calculation of the cumulative amount of carbon emissions, and the average carbon emissions per second of the power equipment 10 corresponding to the i-th exhaust pipe 11 are expressed as follows:

[0062]

[0063] In some embodiments, the preset statistical period is the product of the first preset duration and the number of the plurality of power devices 10. For example, in each preset statistical period, the first exhaust parameter and the second exhaust parameter of each exhaust pipe 11 are monitored in turn for a first preset duration; each preset statistical period can perform a cyclic monitoring of the exhaust parameters of the plurality of exhaust pipes 11, so a preset statistical period can also be referred to as a cycle, for example It represents the cumulative amount of carbon emissions of the power equipment 10 corresponding to the i-th exhaust pipe 11 in the n-th preset statistical period.

[0064] In some embodiments, the processor determines the cumulative amount of carbon emissions of the ship according to the carbon emission data of each of the plurality of power devices 10, including: determining the cumulative amount of carbon emissions of the ship in the current preset statistical period according to the cumulative value of the cumulative amount of carbon emissions of the plurality of power devices 10 in the current preset statistical period; which can be expressed as follows:

[0065]

[0066] in, represents the cumulative amount of carbon emissions of the power equipment 10 corresponding to the i-th exhaust pipe 11 in the n-th preset statistical period, s represents the number of exhaust pipes 11 (for example, 5), Indicates the cumulative carbon emissions of a ship during the nth preset statistical period.

[0067] In some embodiments, the sailing time of the current voyage of the ship is an integer multiple of the preset statistical period. For example, when the exhaust parameters of each exhaust pipe 11 are monitored for a complete number of times or more cycles during the sailing time of the current voyage, the processor determines the cumulative carbon emissions of the ship based on the carbon emission data of each of the multiple power equipment 10. It is used to: determine the cumulative carbon emissions of the ship within the preset statistical period based on the cumulative value of the cumulative carbon emissions of the multiple power equipment 10 within the preset statistical period; determine the cumulative carbon emissions of the current voyage of the ship based on the cumulative value of the cumulative carbon emissions in each preset statistical period of the current voyage of the ship.

[0068] Exemplarily, the cumulative amount of carbon emissions of the current voyage of the ship may be determined based on the following formula:

[0069]

[0070] in, represents the cumulative carbon emissions of the ship on its jth voyage, N represents the multiple of the sailing time of the ship's current voyage and the preset statistical period, and N is a positive integer. Indicates the cumulative carbon emissions of a ship during the nth preset statistical period.

[0071] Exemplarily, when the sailing time of the current voyage of the ship is not an integer multiple of the preset statistical period, when the processor determines the cumulative carbon emissions of the ship based on the carbon emission data of each of the multiple power equipment 10, it is used to: determine the cumulative carbon emissions of the ship within the complete preset statistical period based on the cumulative value of the cumulative carbon emissions of the multiple power equipment 10 within the complete preset statistical period; determine the cumulative carbon emissions of the ship in the first time period of the current voyage of the ship based on the cumulative value of the cumulative carbon emissions of the multiple power equipment 10 in each complete preset statistical period, the first time period including the complete preset statistical period of the current voyage; determine the cumulative carbon emissions of the ship in a second time period of the sailing time of the current voyage excluding the first time period; determine the cumulative carbon emissions of the ship's current voyage based on the sum of the cumulative carbon emissions in the first time period of the current voyage and the cumulative carbon emissions in the second time period.

[0072] Exemplarily, when the sailing time of the current voyage of the ship is not an integer multiple of the preset statistical period, the sailing time of the current voyage can be divided into a first time period and a second time period, wherein the first time period is all complete preset statistical periods within the sailing time of the current voyage, that is, in the first time period, the exhaust parameters of each exhaust pipe 11 are monitored for a complete number of times, one or more cycles.

[0073] For example, taking the preset statistical period as 3600 seconds, the sailing time t of the jth voyage of the ship is j It can be expressed as follows:

[0074] t j =3600×N+Δt

[0075] Among them, 3600×N is the first time period, Δt is the second time period, and Δt is less than 3600, that is, the duration of the second time period is less than the preset statistical period, or it can be said that the second time period is a partial duration of the N+1th preset statistical period.

[0076] The cumulative carbon emissions of the ship in the first time period can be expressed as follows:

[0077]

[0078] Wherein, N represents the multiple of the first time period and the preset statistical period, Indicates the cumulative carbon emissions of a ship during the nth preset statistical period.

[0079] The cumulative amount of carbon emissions of the ship during the current voyage can be determined based on the sum of the cumulative amount of carbon emissions during the first time period of the current voyage and the cumulative amount of carbon emissions during the second time period based on the following formula:

[0080]

[0081] represents the cumulative carbon emissions of the ship during the jth voyage, Indicates the cumulative carbon emissions of the ship in the second time period.

[0082] The emission analysis device 30 obtains the second flue gas parameter corresponding to at least one exhaust pipe 11 within the second time period. Taking the first preset time length as 720 seconds and the preset statistical period as 3660 seconds as an example, for example, when Δt is less than or equal to 720, the second flue gas parameter corresponding to the first exhaust pipe 11 is obtained; when Δt is greater than 720 and less than or equal to 1440, the second flue gas parameter of the first exhaust pipe 11 within the first preset time length and the second flue gas parameter corresponding to the second exhaust pipe 11 are obtained; when Δt is greater than 1440 and less than or equal to 2160, the second flue gas parameters of the first exhaust pipe 11 and the second exhaust pipe 11 within their respective first preset time lengths and the second flue gas parameters of the second exhaust pipe 11 are obtained. The second flue gas parameters corresponding to the three exhaust pipes 11; when Δt is greater than 2160 and less than or equal to 2880, the second flue gas parameters of the first exhaust pipe 11, the second exhaust pipe 11, and the third exhaust pipe 11 within their respective first preset time lengths are obtained, and the second flue gas parameter corresponding to the fourth exhaust pipe 11 is obtained; when Δt is greater than 2880 and less than 3660, the second flue gas parameters of the first exhaust pipe 11, the second exhaust pipe 11, the third exhaust pipe 11, and the fourth exhaust pipe 11 within their respective first preset time lengths are obtained, and the second flue gas parameter corresponding to the fifth exhaust pipe 11 is obtained.

[0083] In some embodiments, determining the cumulative carbon emissions of the ship in a second time period other than the first time period during the sailing time of the current voyage includes: determining the cumulative carbon emissions of the power equipment 10 corresponding to the at least one exhaust pipe 11 in the second time period based on the first flue gas parameter and the second flue gas parameter corresponding to the at least one exhaust pipe 11 in the second time period; for other exhaust pipes 11 among the multiple exhaust pipes 11 except the at least one exhaust pipe 11, determining the cumulative carbon emissions of the power equipment 10 corresponding to the other exhaust pipes 11 in the second time period based on the cumulative carbon emissions of the first preset duration within the most recent complete preset statistical period and the duration of the second time period; determining the cumulative carbon emissions of the ship in the second time period based on the cumulative value of the cumulative carbon emissions of the power equipment 10 corresponding to each exhaust pipe 11 among the multiple exhaust pipes 11 in the second time period.

[0084] Exemplarily, when 0<Δt≤720, the cumulative amount of carbon emissions of the ship in the second time period Δt can be determined based on the following formula:

[0085]

[0086] in, represents the cumulative carbon emissions of the ship in the second time period, represents the instantaneous amount of carbon emissions of the power equipment 10 corresponding to the first exhaust pipe 11 at the tth sampling moment in the N+1th preset statistical period, It represents the instantaneous amount of carbon emissions of the power equipment 10 corresponding to the i-th exhaust pipe 11 at the t-th sampling moment in the most recent complete preset statistical cycle, such as the N-th preset statistical cycle. The cumulative amount of carbon emissions of the power equipment 10 corresponding to the first exhaust pipe 11 in the second time period is determined according to the actual real-time monitoring parameters, and is expressed as follows: The cumulative amount of carbon emissions from the second to fifth exhaust pipes 11 in the second time period is determined according to the cumulative amount of carbon emissions of the first preset time period in the most recent complete preset statistical period, which can be considered as an approximate value.

[0087] Exemplarily, when 720<Δt≤1440, the cumulative amount of carbon emissions of the ship in the second time period Δt can be determined based on the following formula:

[0088]

[0089] Among them, the cumulative carbon emissions of the power equipment 10 corresponding to the first exhaust pipe 11 and the second exhaust pipe 11 in the second time period are determined based on the actual real-time monitoring parameters during at least part of the second time period; the cumulative carbon emissions of the third to fifth exhaust pipes 11 in the second time period are determined based on the cumulative carbon emissions of the first preset time period in the most recent complete preset statistical period.

[0090] Exemplarily, when 1440<Δt≤2160, the cumulative amount of carbon emissions of the ship in the second time period Δt can be determined based on the following formula:

[0091]

[0092] Among them, the cumulative carbon emissions of the power equipment 10 corresponding to the first to third exhaust pipes 11 in the second time period are determined based on the actual real-time monitoring parameters during at least part of the second time period; the cumulative carbon emissions of the fourth to fifth exhaust pipes 11 in the second time period are determined based on the cumulative carbon emissions of the first preset time period in the most recent complete preset statistical period.

[0093] Exemplarily, when 2160<Δt≤2880, the cumulative amount of carbon emissions of the ship in the second time period Δt can be determined based on the following formula:

[0094]

[0095] Among them, the cumulative amount of carbon emissions of the power equipment 10 corresponding to the first to fourth exhaust pipes 11 in the second time period is determined based on at least the actual real-time monitoring parameters during a part of the second time period; the cumulative amount of carbon emissions of the fifth exhaust pipe 11 in the second time period is determined based on the cumulative amount of carbon emissions for the first preset time period in the most recent complete preset statistical period.

[0096] Exemplarily, when 2880<Δt≤3600, the cumulative amount of carbon emissions of the ship in the second time period Δt can be determined based on the following formula:

[0097]

[0098] The cumulative amount of carbon emissions of the power equipment 10 corresponding to the first to fifth exhaust pipes 11 in the second time period is determined based on actual real-time monitoring parameters during at least a portion of the second time period.

[0099] In some embodiments, the cumulative carbon emissions of the ship include the cumulative carbon emissions of the current voyage of the ship, such as the cumulative carbon emissions of the jth voyage of the ship.

[0100] The processor is also used to obtain operation information of the current voyage of the ship, where the operation information includes deadweight and sailing distance.

[0101] The carbon emission monitoring result also includes the carbon intensity of the ship. When the processor determines the carbon emission monitoring result of the ship according to the carbon emission data of each of the multiple power equipment, it is used to: determine the cumulative carbon emission of the current voyage of the ship according to the carbon emission data of each of the multiple power equipment; determine the carbon intensity of the ship according to the operating information of each of the multiple voyages and the cumulative carbon emission of the ship in each of the multiple voyages.

[0102] Exemplarily, the processor determines the carbon intensity corresponding to the ship based on the following formula:

[0103]

[0104] Wherein, CII represents the carbon intensity corresponding to the ship (kg / ton·nm, ton represents tons, nm represents nautical miles), m represents the number of the plurality of voyages (such as voyages in a year), represents the cumulative carbon emissions of the ship on the jth voyage, DWT j represents the load of the jth voyage, D j represents the sailing distance of the jth voyage.

[0105] In some embodiments, the ship carbon emission online monitoring system further includes: a display. The display can be provided on the emission analysis device 30, but is not limited thereto, and can be provided in a terminal device outside the emission analysis device 30, such as a computer.

[0106] Exemplarily, the display is used to display at least one of the following: a first flue gas parameter corresponding to each exhaust pipe 11, a second flue gas parameter corresponding to each exhaust pipe 11, an instantaneous amount of carbon emissions from each exhaust pipe 11, a cumulative amount of carbon emissions from a power equipment 10 corresponding to each exhaust pipe 11, an instantaneous amount of carbon emissions from the ship, a cumulative amount of carbon emissions from the ship, and a carbon intensity of the ship.

[0107] For example, the display is used to visualize carbon emission data, including but not limited to at least one of the following: using a line graph to display the CO2 concentration, exhaust temperature, exhaust pressure, exhaust flow rate and humidity corresponding to each exhaust pipe 11 in real time; using a dual-axis line graph to display the ship's water speed, sailing distance and deadweight, and using marks and track lines to display the ship's position information on the map in real time; displaying the current instantaneous amount of carbon emissions through a dashboard; displaying the cumulative amount of carbon emissions in each time period (day, week, month and year) through a cumulative bar graph; using a radar chart to display carbon intensity; using a bar graph to display the carbon intensity of each voyage.

[0108] In some embodiments, see Figure 1 and Figure 4 The ship carbon emission online monitoring system of the embodiment of the present application can be divided into a multi-measurement point data acquisition module, a data transmission module, a data processing module, a carbon emission calculation module, a data storage module, a data report statistics module, a visual analysis module and a user interface module. The data processing module, the carbon emission calculation module, the data storage module, the data report statistics module, the visual analysis module and the user interface module can be implemented by a processor.

[0109] The multi-point data acquisition module can be used as follows Figure 2 The multi-measuring point (each exhaust pipe 11 can be called a measuring point) shipboard flue gas emission continuous monitoring system shown (including sampling probes 22 for multiple measuring points, heating pipes, emission analyzer cabinet (built-in hygrometer, CO2 infrared gas analyzer, fine filter, condenser, peristaltic pump, air intake regulating valve, etc.)), flue gas parameter monitor 21 (integrated temperature, pressure, flow rate monitor)), Doppler odometer and Beidou satellite navigation system, collects CO2 concentration, exhaust temperature, exhaust pressure, exhaust flow rate and humidity of five exhaust ports such as the ship's main engine, auxiliary engine and boiler in real time, as well as the ship's water speed, sailing distance, deadweight and position information (emission monitoring data).

[0110] Data transmission module: This module uses a network switch to collect and transmit data from multiple measurement points to the data center of the monitoring system.

[0111] Data processing module: First, the emission monitoring data is classified and stored. Then, the data from different collection points are integrated, and time alignment and unit conversion operations are performed; finally, the missing values, duplicate values, and abnormal values ​​of the monitoring data are screened and eliminated for preprocessing to generate real-time emission monitoring data.

[0112] Carbon emission calculation module: uses the real-time emission monitoring data obtained through preprocessing to calculate the instantaneous amount, cumulative amount and carbon intensity of carbon emissions.

[0113] Data storage module: stores real-time emission monitoring data and calculated instantaneous carbon emission, cumulative amount and carbon intensity data.

[0114] Visualization analysis module: The emission monitoring data and the calculated instantaneous amount, cumulative amount and carbon intensity data of current carbon emissions are displayed in real time in the form of charts and curves to present the changing trend of carbon emissions over time in a more intuitive way.

[0115] Data report statistics module: extracts real-time emission monitoring data, historical data, carbon emissions and carbon intensity data from the data storage module, and classifies and counts these data. The system can group the statistical results by time, region or ship, and then generate a carbon emission data statistical report, and allows users to select the format of the report export.

[0116] User interface module: provides a login interface and visualizes the above modules. It also supports multi-language operation and sets different levels of access rights according to user roles, including identity authentication, password reset and other functions.

[0117] Exemplarily, the emission analyzer cabinet has a built-in data online monitoring system, which can monitor the data transmitted from the emission analysis device 30 in real time, store it in a database, and then display the calculated carbon emission instantaneous value, cumulative value, and carbon intensity value in real time through the cabinet screen.

[0118] Exemplarily, a network switch is used to transmit the real-time data of the online data monitoring system to the data center of the monitoring system.

[0119] For example, the processor can first classify and store the emission monitoring data, then fuse the data from different collection points, and perform time alignment and unit conversion operations; finally, pre-process the missing values, duplicate values, and abnormal values ​​of the emission monitoring data by screening and eliminating them to obtain the pre-processed real-time ship carbon emission monitoring data. Then, the instantaneous amount, cumulative amount, and carbon intensity of carbon emissions are calculated based on the pre-processed real-time ship carbon emission monitoring data.

[0120] Among them, time alignment and unit conversion can convert all timestamps into a unified time zone and time format; all data are converted into the same measurement unit according to the conversion factor between different units; missing value screening, elimination and filling can be filled by K nearest neighbor interpolation, that is, the k samples closest to the missing value sample feature space are selected, and the missing values ​​are predicted according to the attribute values ​​of these neighboring samples; duplicate value screening and elimination can use timestamps to determine which records in the data collected (time series data) of the embodiment of the present application are duplicates, and retain the latest and most accurate data, and eliminate duplicate or inaccurate samples; for duplicate records with the same timestamp, the keep_min_abs_CO2 function in Python can be used to customize the logic, for example, retain the record with the smallest absolute value of CO2 concentration and 1s data in the same timestamp group; the Group by object can use the apply method to execute this function on each group, and can also use the idxmin method to find the data index with the smallest absolute value, and then use this index to eliminate duplicate values.

[0121] Among them, the outlier normalization process can use the Z-score to normalize the outliers. First, the centering process is performed, and the mean of the data set is subtracted from each original data point; then each data point after centering is divided by the standard deviation of the data set to eliminate the scale difference of the data; it can be expressed as follows:

[0122]

[0123] Among them, Z represents the normalized value; X is the original data point; μ is the mean of the original data set; σ is the standard deviation of the original data set.

[0124] The ship carbon emission online monitoring system provided in the embodiment of the present application shares an emission analysis device to complete the carbon emission monitoring of each power equipment. The system includes: multiple flue gas parameter monitors, multiple sampling probes, multiple gas pipelines, an emission analysis device and a processor; the multiple flue gas parameter monitors are each arranged on the exhaust pipe of the corresponding power equipment to obtain the first flue gas parameter corresponding to each exhaust pipe; the multiple sampling probes are each arranged on the exhaust pipe of the corresponding power equipment; the multiple gas pipelines are each connected to the corresponding sampling probe; the emission analysis device is connected to the multiple gas pipelines, and the emission analysis device is shared by multiple power equipment, and can obtain the flue gas in the exhaust pipe of one power equipment through one gas pipeline and the corresponding sampling probe each time, and analyze the flue gas to obtain the second flue gas parameter corresponding to the exhaust pipe; the processor is used to determine the carbon emission data of the power equipment corresponding to the exhaust pipe according to the first flue gas parameter and the second flue gas parameter corresponding to the exhaust pipe; and determine the carbon emission monitoring result of the ship according to the carbon emission data of each of the multiple power equipment, and the carbon emission monitoring result includes: instantaneous carbon emission, cumulative carbon emission, and carbon intensity. Optionally, the processor can also obtain the ship's operating information, such as sailing distance, sailing speed and deadweight, and determine the ship's carbon intensity based on the cumulative carbon emissions and operating information. Multiple sampling probes transmit gas samples from each exhaust pipe to a common carbon emission analysis device through a heating pipe. The carbon emission analysis device is used to monitor the ship's carbon emissions online, and the emission data generated by different power equipment are monitored based on the ship's multiple exhaust pipes. The data is used to calculate carbon emissions, which significantly improves the measurement accuracy and reliability and saves monitoring costs. The carbon emission analysis device can use a high-precision emission analysis device. Among them,

[0125] In addition, the emission calculation combined with actual ship measurement data further enhances the accuracy of instantaneous carbon emissions, cumulative amounts and carbon intensity calculations.

[0126] System calibration ensures that different devices are monitored under the same conditions, and pre-processes the monitoring data in real time to further improve the quality of the monitoring data and the system's monitoring effect on carbon emissions.

[0127] The ship carbon emission online monitoring system of the embodiment of the present application can continuously monitor the carbon emissions during the operation of the ship online and avoid the randomness problem of the monitoring results based on the portable emission analyzer.

[0128] Compared with calculating the carbon emissions of a ship based on a model or using fuel consumption and carbon emission factors, the ship carbon emission online monitoring system of the embodiment of the present application can more accurately reflect the actual carbon emissions of the ship.

[0129] It should be understood that the terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0130] It will also be understood that the term "and / or" as used in this application and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0131] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A ship carbon emission online monitoring system, characterized in that: The ship includes a plurality of power equipments with exhaust pipes. The ship carbon emission online monitoring system shares an emission analysis device to complete the carbon emission monitoring of each power equipment. The ship carbon emission online monitoring system includes: A plurality of flue gas parameter monitors, each of which is arranged on an exhaust pipe of a corresponding power device to obtain a first flue gas parameter corresponding to each exhaust pipe; A plurality of sampling probes, each of which is arranged on an exhaust pipe of a corresponding power device; A plurality of gas pipelines, each of which is connected to a corresponding sampling probe; an emission analysis device, the emission analysis device being connected to the plurality of gas pipelines, the emission analysis device being capable of acquiring the flue gas in the exhaust pipe of one of the power equipment through one of the gas pipelines and the corresponding sampling probe each time within a first preset time period, and analyzing the flue gas to obtain a second flue gas parameter corresponding to the exhaust pipe; A processor, the processor is used to determine the carbon emission data of the power equipment corresponding to the exhaust pipe according to the first flue gas parameter and the second flue gas parameter corresponding to the exhaust pipe; and determine the carbon emission monitoring result of the ship according to the carbon emission data of each of the multiple power equipments, the carbon emission monitoring result including: the instantaneous amount of carbon emission, the cumulative amount of carbon emission of the ship within a preset statistical period and / or the cumulative amount of carbon emission of the ship during the current voyage; Among them, the preset statistical period is the product of the first preset time length and the number of the multiple power equipment, and the carbon emission data of the power equipment corresponding to the exhaust pipe includes the instantaneous carbon emission of the exhaust pipe and the cumulative carbon emission of the power equipment corresponding to the exhaust pipe within the preset statistical period; when the sailing time of the current voyage of the ship is an integer multiple of the preset statistical period, the cumulative carbon emission of the ship within the preset statistical period is determined according to the cumulative value of the cumulative carbon emission of the multiple power equipment within the preset statistical period, and the cumulative carbon emission of the current voyage of the ship is determined according to the cumulative value of the cumulative carbon emission in each preset statistical period of the current voyage of the ship.

2. The ship carbon emission online monitoring system according to claim 1 is characterized in that: The carbon emission monitoring results also include the carbon intensity of the ship; The processor is further configured to: Obtaining the operation information of the current voyage of the ship, the operation information including deadweight and sailing distance; When the processor determines the carbon emission monitoring result of the ship according to the carbon emission data of each of the plurality of power equipments, it is used to: Determining the accumulated carbon emissions of the current voyage of the ship according to the carbon emission data of each of the plurality of power equipments; The carbon intensity of the ship is determined according to the operation information of each of the multiple voyages and the cumulative carbon emissions of the ship during each of the multiple voyages.

3. The ship carbon emission online monitoring system according to claim 2 is characterized in that: The processor determines the carbon intensity corresponding to the ship based on the following formula: in, represents the carbon intensity of the ship, represents the number of the multiple voyages, Indicates The cumulative carbon emissions of the ship on each voyage, Indicates The load capacity of each voyage, Indicates The sailing distance of a voyage.

4. The ship carbon emission online monitoring system according to any one of claims 1 to 3, characterized in that: When the processor determines the carbon emission data of the power equipment corresponding to the exhaust pipe according to the first flue gas parameter and the second flue gas parameter corresponding to the exhaust pipe, it is used to: Determining the instantaneous amount of carbon emissions from the exhaust pipe according to the first flue gas parameter and the second flue gas parameter of the exhaust pipe at each sampling time; The accumulated carbon emissions of the power equipment corresponding to the exhaust pipe within the preset statistical period are determined based on the accumulated value of the instantaneous carbon emissions of the exhaust pipe at multiple sampling moments within the first preset time period, and the ratio of the preset statistical period to the first preset time period.

5. The ship carbon emission online monitoring system according to claim 4 is characterized in that: The processor determines the instantaneous amount of carbon emissions from the exhaust pipe based on the following formula: in, Indicates the number of exhaust pipes The instantaneous amount of carbon emissions at the sampling moment, Indicates the number of exhaust pipes CO2 concentration at the sampling time, S represents the cross-sectional area of ​​the i-th exhaust pipe, represents the molar mass of CO2, Indicates the number of exhaust pipes The exhaust flow rate at the sampling time, Ti, is the exhaust pipe The exhaust temperature at the sampling time, Indicates the number of exhaust pipes The exhaust pressure at the sampling moment, Indicates atmospheric pressure, Indicates the number of exhaust pipes Exhaust humidity at the sampling moment.

6. The ship carbon emission online monitoring system according to claim 4 is characterized in that: When the sailing time of the current voyage of the ship is not an integer multiple of the preset statistical period, the processor determines the carbon emission monitoring result of the ship according to the carbon emission data of each of the multiple power equipments, and is used to: Determining the cumulative amount of carbon emissions of the ship within the complete preset statistical period according to the cumulative value of the cumulative amount of carbon emissions of the multiple power equipment within the complete preset statistical period; Determine the cumulative amount of carbon emissions in a first time period of the current voyage of the ship according to the cumulative value of the cumulative amount of carbon emissions in each complete preset statistical period of the current voyage of the ship, where the first time period includes the complete preset statistical period of the current voyage; Determine the cumulative amount of carbon emissions of the ship during a second time period of the sailing time of the current voyage, excluding the first time period; The cumulative amount of carbon emissions of the ship on the current voyage is determined according to the sum of the cumulative amount of carbon emissions in the first time period of the current voyage and the cumulative amount of carbon emissions in the second time period.

7. The ship carbon emission online monitoring system according to claim 6 is characterized in that: The emission analysis device obtains a second flue gas parameter corresponding to at least one of the exhaust pipes within the second time period; The determining the cumulative amount of carbon emissions of the ship in a second time period other than the first time period during the sailing time of the current voyage includes: Determine the cumulative amount of carbon emissions of the power equipment corresponding to the at least one exhaust pipe in the second time period according to the first flue gas parameter and the second flue gas parameter corresponding to the at least one exhaust pipe in the second time period; For other exhaust pipes among the multiple exhaust pipes except the at least one exhaust pipe, determining the cumulative amount of carbon emissions of the power equipment corresponding to the other exhaust pipes in the second time period according to the cumulative amount of carbon emissions of the first preset time period in the most recent complete preset statistical period and the length of the second time period; The cumulative amount of carbon emissions of the ship in the second time period is determined according to the cumulative value of the cumulative amount of carbon emissions of the power equipment corresponding to each exhaust pipe of the multiple exhaust pipes in the second time period.

8. The ship carbon emission online monitoring system according to any one of claims 1 to 3, characterized in that: The ship carbon emission online monitoring system also includes: A display, wherein the display is used to display at least one of the following: a first flue gas parameter corresponding to each of the exhaust pipes, a second flue gas parameter corresponding to each of the exhaust pipes, an instantaneous amount of carbon emissions from each of the exhaust pipes, a cumulative amount of carbon emissions from power equipment corresponding to each of the exhaust pipes, an instantaneous amount of carbon emissions from the ship, a cumulative amount of carbon emissions from the ship, and a carbon intensity of the ship.

9. The ship carbon emission online monitoring system according to any one of claims 1 to 3, characterized in that: The gas pipeline is a heating pipe, and the sampling probe and / or the gas pipeline and / or the emission analysis device are provided with an air intake valve. The emission analysis device controls the opening of the air intake valve corresponding to one exhaust pipe each time, so that the flue gas in the exhaust pipe of one power equipment is obtained each time through one gas pipeline and the corresponding sampling probe.

Images