Method for calculating low-carbon performance of explosion-proof lamp product
By calculating the total carbon emissions and functional contribution of explosion-proof lighting fixtures throughout their entire life cycle and introducing the carbon efficiency ratio index, the problem of unscientific evaluation in existing technologies is solved, enabling a scientific and accurate evaluation of the low-carbon performance of explosion-proof lighting products and guiding product optimization and improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TIANJIN TIANCHUAN ELECTRICAL CONTROL EQUIP TEST CO LTD
- Filing Date
- 2025-12-30
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing technology, the carbon footprint evaluation methods for explosion-proof lighting products cannot fully reflect the true low-carbon performance of the products, lack functional orientation, may mislead users' decisions, and fail to reflect the social contribution value of high-energy-consuming and long-life equipment. The evaluation results are not scientific and accurate enough.
This paper proposes a method for calculating the low-carbon performance of explosion-proof lighting products. By collecting product parameter data, the total carbon emissions over the entire life cycle are calculated. The concept of functional contribution is introduced, and the carbon efficiency ratio (CER) is defined as an evaluation index. The carbon efficiency ratio is the ratio of carbon emissions to functional contribution, which reflects the low-carbon performance of the product.
It enables functional and quantitative evaluation of the low-carbon performance of explosion-proof lighting products, improving the scientific nature and accuracy of the evaluation. It can compare the low-carbon performance of equipment with different specifications and performance under the same service conditions, guiding product design optimization and low-carbon technology improvement.
Smart Images
Figure CN122045545A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of carbon performance calculation technology, and in particular, a method for calculating the low carbon performance of explosion-proof lighting products. Background Technology
[0002] In recent years, the greenhouse effect and climate change have become major challenges facing the world. To address this issue, my country has continuously improved its relevant policies and standards system. Against this backdrop, how to scientifically and objectively evaluate the low-carbon performance of products has become a key focus of the industry.
[0003] Product carbon footprint (PCF), as a quantitative tool, has been widely used to assess a product's greenhouse gas emissions throughout its entire life cycle. It is defined as the total greenhouse gas emissions generated at each stage of a product's life cycle, from raw material acquisition, manufacturing, transportation, use, to end-of-life recycling / reuse. This indicator is typically represented by carbon dioxide equivalent (CO2e), and the emissions of different greenhouse gases are uniformly converted into equivalent CO2 emissions using the Global Warming Potential (GWP) factor, thus achieving a weighted aggregation across gases.
[0004] However, in the field of energy-consuming equipment (such as explosion-proof lighting fixtures), the carbon footprint of a product has significant limitations as an indicator of low-carbon performance. This is because, in the overall life-cycle emissions structure of such products, the carbon emissions during the usage phase typically account for over 90%, meaning that relying solely on the carbon footprint figure cannot fully reflect the product's true low-carbon level. Specific shortcomings are mainly reflected in the following aspects: The lack of a function-oriented approach makes it difficult to reflect efficiency differences. Carbon footprint results only present the absolute value of emissions over the life cycle or emissions per unit of product, without linking them to the actual service output of the product. For example, a highly energy-efficient and more powerful device may have a larger absolute carbon footprint than a low-power device, leading to an incorrect assessment of its low-carbon performance.
[0005] This could mislead users' decisions and lead to increased system emissions. If carbon footprint is the sole criterion for selection, users may tend to choose equipment with lower absolute emissions but insufficient functionality. To meet the same service requirements, more equipment will ultimately be needed, which will increase the overall greenhouse gas emissions of the system.
[0006] It is difficult to reflect the social contribution value of high-energy-consuming and long-life equipment. For some high-energy-consuming but long-lasting and highly reliable equipment, although their lifecycle carbon footprint is large, they can continuously provide critical functions and create significant social and economic value during long-term operation. If evaluation is based solely on carbon footprint results, it is easy to judge them as "not low-carbon" due to their high absolute emissions, while ignoring their important significance in long-term operation and social contribution.
[0007] In summary, carbon footprint indicators are insufficient to comprehensively and scientifically reflect the true differences between different energy-consuming products in evaluating their low-carbon performance. To address this deficiency, the concept of Carbon Efficiency Ratio (CER) is proposed. CER uses the "functional unit" as its core evaluation metric and is defined as the carbon dioxide equivalent emissions required to achieve a unit of function; that is, the ratio of a product's greenhouse gas emissions to its functional contribution within the evaluation boundary. Compared to traditional carbon footprint indicators, CER can comprehensively compare the efficiency and low-carbon levels of equipment of different specifications and performance levels under the same service conditions, thus more scientifically measuring the low-carbon performance of energy-consuming products and more accurately characterizing a company's low-carbon technological capabilities. Summary of the Invention
[0008] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a method for calculating the low-carbon performance of explosion-proof lighting products. This method considers both the total carbon emissions of the product and its functional contribution, enabling a scientific and reasonable measurement of the product's low-carbon performance. A lower carbon efficiency ratio indicates lower carbon emissions per unit of functional contribution, meaning better low-carbon performance. Conversely, a higher carbon efficiency ratio indicates higher carbon emissions per unit of functional contribution, meaning worse low-carbon performance.
[0009] The technical problem solved by this invention is achieved through the following technical solution: A method for calculating the low-carbon performance of explosion-proof lighting products includes the following steps: Step 1: Collect parameter data of explosion-proof lighting products; Step 2: Calculate the total carbon emissions during the raw material acquisition stage based on the parameter data; Step 3: Calculate the total carbon emissions during the product manufacturing stage based on the parameter data; Step 4: Calculate the total carbon emissions during the product transportation stage based on the parameter data; Step 5: Calculate the total carbon emissions during the product's usage phase based on the parameter data; Step 6: Calculate the total carbon emissions for the recycling and treatment stage based on the parameter data; Step 7: Calculate the carbon efficiency ratio of the explosion-proof lighting products based on the total carbon emissions obtained in Steps 2 to 6.
[0010] Furthermore, the specific implementation method of step 2 is as follows:
[0011] in, CFP m This refers to the total carbon emissions during the raw material acquisition stage; n The number of types of raw materials contained in explosion-proof lighting fixtures; CFP i, m For the first i Carbon emissions generated during the extraction and manufacturing of such raw materials.
[0012] Furthermore, the specific implementation method of step 3 is as follows:
[0013] in, CFP p This refers to the total carbon emissions during the product manufacturing stage. E h,p Electricity consumption during the product manufacturing stage; EF h,p This refers to the carbon emission factors related to electricity during the product manufacturing stage.
[0014] Furthermore, the specific implementation method of step 4 is as follows:
[0015] in, CFP t This refers to the total carbon emissions during the product transportation phase. M l, t For the transportation of the first l The quality of the batch of products; D l, t For the first l Transportation distance for batch products; EF l, t For transportation of vehicles l Carbon emission factors of batch products; s This refers to the number of product batches transported during the product transportation phase.
[0016] Furthermore, the specific implementation method of step 5 is as follows:
[0017] in, CFP u This represents the total carbon emissions during the product's usage phase. P Product power; Y For product lifespan; EF The carbon footprint factor for electricity.
[0018] Furthermore, the specific implementation method of step 6 is as follows:
[0019] in, CFP r This represents the total carbon emissions during the recycling and processing phase. W q,r For the transportation of the recycling and processing stage q The quality of similar materials; D q,r For the transportation of the recycling and processing stage q Distance between similar materials; EF q,r For the transportation of vehicles in the recycling and processing stage q Emission factors of similar materials; a This refers to the number of different types of materials transported during the recycling and processing phase. W d,r For recycling and processing d Physical quantity of similar materials; WEF d,r For recycling and processing d Emission factors of similar materials; b This refers to the number of types of materials that are recycled.
[0020] Furthermore, the specific implementation method of step 7 is as follows: based on the total carbon emissions obtained in steps 2 to 6, the total carbon emissions within the boundary of the explosion-proof lighting product system are obtained:
[0021] in: CFP Carbon footprint within the product system boundary; CFP m This refers to the total carbon emissions during the raw material acquisition stage; CFP p This refers to the total carbon emissions during the product manufacturing stage. CFP t This refers to the total carbon emissions during the product transportation phase. CFP u This represents the total carbon emissions during the product's usage phase. CFP r This represents the total carbon emissions during the recycling and processing phase. Calculate the total functional contribution of explosion-proof lighting products:
[0022] in, TFU The total contribution to the product's functionality; LF For product luminous flux; Y For product lifespan; Based on the carbon footprint within the system boundary of the explosion-proof lighting fixture product and the total functional contribution of the explosion-proof lighting fixture product, calculate the ratio of the carbon footprint of the explosion-proof lighting fixture product to its functional contribution:
[0023] in, CER Carbon efficiency ratio for explosion-proof lighting fixtures; CFP The carbon footprint of explosion-proof lighting fixtures within the boundaries of the product evaluation system; TFU The total contribution to product functionality.
[0024] The advantages and positive effects of this invention are: 1. The carbon efficiency ratio calculation method for explosion-proof lighting fixtures proposed in this invention introduces the concept of "functional contribution" based on traditional carbon footprint accounting, realizing a functional and quantitative evaluation of low-carbon performance. The method has clear formulas, simple steps, and clear data sources, making it easy for enterprises and accounting personnel to quickly master and implement. While ensuring the accuracy of the results, it significantly improves the evaluation efficiency and has high engineering operability and promotion value.
[0025] 2. This invention addresses the lighting characteristics of explosion-proof lighting products by selecting "luminous flux (lm)" as the functional unit. This accurately characterizes the lighting contribution of the luminaire over its lifespan, enabling fair comparisons of lighting products with different power and specifications under the same service conditions. This innovative approach to functional unit selection effectively solves the problem of insufficient horizontal comparability of the low-carbon performance of lighting equipment.
[0026] 3. Traditional methods are often limited to the "half-life cycle" or only account for the production and use stages of a product, neglecting aspects such as product recycling and disposal, resulting in incomplete evaluation results. This invention establishes a "cradle-to-grave" full life cycle accounting system, comprehensively covering stages such as raw material acquisition, production, transportation, use, and recycling, which can more scientifically and objectively reflect the true low-carbon performance of explosion-proof lighting products, improving the accuracy of evaluation and the comparability of results.
[0027] 4. The carbon efficiency ratio index of this invention considers both the total carbon emissions of the product and its contribution to lighting function. Under the same conditions, extending product lifespan or improving luminous efficiency can significantly reduce the carbon efficiency ratio, thus forming a clear direction for low-carbon technology improvement. This method not only helps companies optimize product design and improve durability and energy efficiency, but can also be applied to the low-carbon performance evaluation of other types of lighting products and energy-consuming equipment, possessing broad industry applicability and promotional value. Attached Figure Description
[0028] Figure 1 This is a flowchart illustrating the product lifecycle system boundary of the present invention. Detailed Implementation
[0029] The present invention will be further described in detail below with reference to the accompanying drawings.
[0030] A method for calculating the low-carbon performance of explosion-proof lighting products includes the following steps: Step 1: Collect parameter data of explosion-proof lighting products.
[0031] Step 2: Calculate the total carbon emissions during the raw material acquisition stage based on the parameter data.
[0032]
[0033] in, CFP m This refers to the total carbon emissions during the raw material acquisition stage; n The number of types of raw materials contained in explosion-proof lighting fixtures; CFP i, m For the first i Carbon emissions generated during the extraction and manufacturing of such raw materials.
[0034] Step 3: Calculate the total carbon emissions during the production stage based on the parameter data.
[0035]
[0036] in, CFP p This refers to the total carbon emissions during the product manufacturing stage. E h,p Electricity consumption during the product manufacturing stage; EF h,p This refers to the carbon emission factors related to electricity during the product manufacturing stage.
[0037] Step 4: Calculate the total carbon emissions during the transportation phase based on the parameter data.
[0038]
[0039] in, CFP t This refers to the total carbon emissions during the product transportation phase. M l, t For the transportation of the first l The quality of the batch of products; D l, t For the first l Transportation distance for batch products; EF l, t For transportation of vehicles l Carbon emission factors of batch products; s This refers to the number of product batches transported during the product transportation phase.
[0040] Step 5: Calculate the total carbon emissions during the usage phase based on the parameter data.
[0041]
[0042] in, CFP uThis represents the total carbon emissions during the product's usage phase. P Product power; Y For product lifespan; EF The carbon footprint factor for electricity.
[0043] Step 6: Calculate the total carbon emissions for the recycling and treatment stage based on the parameter data.
[0044]
[0045] in, CFP r This represents the total carbon emissions during the recycling and processing phase. W q,r For the transportation of the recycling and processing stage q The quality of similar materials; D q,r For the transportation of the recycling and processing stage q Distance between similar materials; EF q,r For the transportation of vehicles in the recycling and processing stage q Emission factors of similar materials; a This refers to the number of different types of materials transported during the recycling and processing phase. W d,r For recycling and processing d Physical quantity of similar materials; WEF d,r For recycling and processing d Emission factors of similar materials; b This refers to the number of types of materials that are recycled.
[0046] Step 7: Calculate the carbon efficiency ratio of the explosion-proof lighting products based on the total carbon emissions obtained in Steps 2 to 6.
[0047] Based on the total carbon emissions obtained from steps 2 to 6, the footprint within the system boundary of the explosion-proof lighting fixture product is obtained:
[0048] in: CFP Carbon footprint within the product system boundary; CFP m This refers to the total carbon emissions during the raw material acquisition stage; CFP p This refers to the total carbon emissions during the product manufacturing stage. CFP t This refers to the total carbon emissions during the product transportation phase. CFP u This represents the total carbon emissions during the product's usage phase. CFP r This represents the total carbon emissions during the recycling and processing phase. Calculate the total functional contribution of explosion-proof lighting products:
[0049] in, TFU The total contribution to the product's functionality; LF For product luminous flux; Y For product lifespan; Based on the carbon footprint within the system boundary of the explosion-proof lighting fixture product and the total functional contribution of the explosion-proof lighting fixture product, calculate the ratio of the carbon footprint of the explosion-proof lighting fixture product to its functional contribution:
[0050] in, CER Carbon efficiency ratio for explosion-proof lighting fixtures; CFP The carbon footprint of explosion-proof lighting fixtures within the boundaries of the product evaluation system; TFU The total contribution to product functionality.
[0051] Based on the above-mentioned calculation method for the low-carbon performance of an explosion-proof lighting product, the effectiveness of the present invention was verified by testing an explosion-proof LED lighting lamp.
[0052] 1. Evaluation objects: 3 explosion-proof LED lights.
[0053] 2. Product Information: Three types of explosion-proof lighting fixtures were selected as research objects, all with a rated voltage of AC220 V.
[0054] Explosion-proof luminaire A has a rated power of 50 W and a luminous flux of 157 lm; explosion-proof luminaire B has a rated power of 40 W and a luminous flux of 180 lm; explosion-proof luminaire C has a rated power of 70 W and a luminous flux of 250 lm.
[0055] All three components consist of a housing assembly, a light source board, a power supply, glass, fasteners, and a packaging box.
[0056] The lifespan of explosion-proof lighting fixtures A and B is 72,000 hours, and that of explosion-proof lighting fixture C is 100,000 hours.
[0057] 3. System Boundary like Figure 1 As shown, the product lifecycle system boundary is from cradle to grave, including the following stages: "raw material acquisition stage", "product manufacturing stage", "product transportation stage", "product use stage" and "recycling and disposal stage".
[0058] 4. Data Calculation 4.1 Data Rounding Principles (1) All energy inputs are within the scope of accounting; (2) All inputs of raw materials are within the scope of accounting; (3) General solid waste that accounts for less than 1% of the total solid waste emissions can be ignored; (4) The consumption and emissions of infrastructure such as factory buildings, equipment manufacturing processes of each process, personnel and living facilities within the factory area are all ignored; (5) The selection criteria do not apply to toxic and hazardous substances. Any toxic and hazardous materials and substances should be included in the list.
[0059] 5. Carbon footprint calculation for explosion-proof lighting fixture A 5.1.1 Raw material acquisition stage Based on the selection principle in step 4.1, some raw materials weighing less than 1% of the total weight of the product were ignored in this data collection, as shown in Table 1.
[0060] Table 1 Data List of Product Raw Material Acquisition Stage
[0061] The total carbon emissions during the raw material acquisition phase are calculated using the following formula:
[0062] In the formula: CFP m This represents the total carbon emissions during the raw material acquisition stage, expressed in kilograms of carbon dioxide equivalent (kgCO2e). n The number of types of raw materials contained in explosion-proof lighting fixture A; CFP i, m For the first i The carbon emissions generated during the extraction and manufacturing of these raw materials are expressed in kilograms of carbon dioxide equivalent (kgCO2e).
[0063] The calculation shows that the total carbon emissions during the raw material acquisition stage of explosion-proof lighting fixture A are 30.01 kgCO2e.
[0064] 5.1.2 Product Manufacturing Stage The data for the product production stage is allocated according to the principle of quantity allocation, and the energy consumed is electricity, with a total consumption of 2.32 kWh.
[0065] The total carbon emissions during the product manufacturing stage are calculated using the following formula:
[0066] In the formula: CFP p This represents the total carbon emissions during the product manufacturing process, expressed in kilograms of carbon dioxide equivalent (kgCO2e). E h,p This refers to the electricity consumption during the product manufacturing stage, expressed in kilowatt-hours (kW·h). EFh,p The carbon emission factor of electricity during the product manufacturing stage is expressed in kilograms of carbon dioxide equivalent per kilowatt-hour [kgCO2e / (kW·h)].
[0067] Calculations show that the total carbon emissions of explosion-proof lighting fixture A during the product manufacturing stage are 1.44 kgCO2e.
[0068] 5.1.3 Product Transportation Stage During the product transportation phase, the data is selected based on the destination with the largest sales volume. The transportation distance of this route is used as the evaluation input parameter to calculate the total carbon emissions of a single set of explosion-proof lighting fixture A during the product transportation phase, as shown in Table 2.
[0069] Table 2 Data List for Product Transportation Stages
[0070] The total carbon emissions during the transportation phase are calculated using the following formula:
[0071] In the formula: CFP t This represents the total carbon emissions during the product transportation phase, expressed in kilograms of carbon dioxide equivalent (kgCO2e). M l, t For the transportation of the first l The mass of a batch of products, expressed in kilograms (kg); D l, t For the first l The transportation distance for a batch of products, in kilometers (km); EF l, t For transportation of vehicles l The carbon emission factor of a batch of products, expressed in kilograms of carbon dioxide equivalent per kilogram per kilometer [kgCO2e / (kg·km)]; s This refers to the number of product batches transported during the product transportation phase.
[0072] The calculation shows that the total carbon emissions during the product transportation phase are 0.014 kgCO2e.
[0073] 5.1.4 Usage Phase Carbon emissions during the product's use phase originate from electricity consumption. The rated power of explosion-proof lighting fixture A is determined based on its "Explosion-proof Certificate of Conformity," and the service life parameters are based on the test reports provided by the company, as shown in Table 3.
[0074] Table 3 Service life parameters
[0075] The total carbon emissions during the usage phase are calculated using the following formula:
[0076] In the formula: CFP u This represents the total carbon emissions during the usage phase, expressed in kilograms of carbon dioxide equivalent (kgCO2e). P Product power, in kilowatts (kW). Y Product lifespan is expressed in hours (h). EF The electricity carbon footprint factor is expressed in kilograms of carbon dioxide equivalent per kilowatt-hour (kgCO2e / kWh).
[0077] The calculation shows that the total carbon emissions during the product's use phase are 2234 kgCO2e.
[0078] 5.1.5 Recycling and Processing Stage As shown in Table 4, the carbon emission accounting is carried out by recycling all types of materials of explosion-proof lighting fixture A during the recycling and processing stage.
[0079] Table 4 Data List for Recycling and Processing Stages
[0080] The total carbon emissions during the recycling and treatment phase are calculated using the following formula:
[0081] In the formula: CFP r The total carbon emissions during the recycling and treatment phase are expressed in kilograms of carbon dioxide equivalent (kgCO2e). W q,r For the transportation of the recycling and processing stage q The mass of this type of material, expressed in kilograms (kg); D q,r For the transportation of the recycling and processing stage q Distance between materials of the same type, in kilometers (km); EF q,r For the transportation of vehicles in the recycling and processing stage q The emission factor of this type of material is expressed in kilograms of carbon dioxide equivalent per kilogram per kilometer [kgCO2e / (kg·km)]. a This refers to the number of different types of materials transported during the recycling and processing phase. W d,r For recycling and processing d The physical quantity of the material, expressed in kilograms (kg); WEF d,r For recycling and processing dThe emission factor of this type of material is expressed in kilograms of carbon dioxide equivalent per kilogram (kgCO2e / kg). b Number of types of materials to be recycled.
[0082] 5.1.6 Product Carbon Footprint The formula for calculating a product's carbon footprint is the sum of all materials and energy used throughout the product's lifecycle, multiplied by their respective emission factors. The formula is as follows:
[0083] in: CFP Carbon footprint within the product system boundary, expressed in kilograms of carbon dioxide equivalent (kgCO2e); CFP m This represents the total carbon emissions during the raw material acquisition stage, expressed in kilograms of carbon dioxide equivalent (kgCO2e). CFP p This represents the total carbon emissions during the product manufacturing process, expressed in kilograms of carbon dioxide equivalent (kgCO2e). CFP t This represents the total carbon emissions during the product transportation phase, expressed in kilograms of carbon dioxide equivalent (kgCO2e). CFP u This represents the total carbon emissions during the product's usage phase, expressed in kilograms of carbon dioxide equivalent (kgCO2e). CFP r This represents the total carbon emissions during the recycling and treatment phase, expressed in kilograms of carbon dioxide equivalent (kgCO2e).
[0084] As shown in Table 5, the carbon footprint calculation results are as follows: Table 5 Carbon Footprint of Explosion-Proof Lighting Fixtures
[0085] 5.2 Calculation of Total Product Functional Contribution The total functional contribution of explosion-proof lighting fixtures is the total energy transferred during the lifespan of the fixture.
[0086] The formula for calculating the total functional contribution of explosion-proof lighting fixtures is as follows:
[0087] In the formula: TFU The total contribution to the product's function, that is, the total amount of light emitted during the equipment's lifespan, measured in lumens per hour (lm·h). LF The luminous flux of the product is expressed in lumens (lm). Y Product lifespan is expressed in hours (h). According to the relevant test reports for the target product, its luminous flux is 157 lm and its service life is 72,000 hours. The total contribution of function A of the explosion-proof lighting fixture is calculated to be 1.13 × 10⁻⁶. 7 lm∙h.
[0088] 5.3 Calculation of Product Carbon Efficiency Ratio The carbon efficiency ratio of explosion-proof lighting fixture A is the ratio of the product's carbon emissions to its functional contribution within the evaluation boundary. The calculation formula is as follows:
[0089] In the formula: CER The carbon efficiency ratio of explosion-proof lighting fixtures is expressed in kilograms of carbon dioxide equivalent per lumen-hour [kgCO2e / (lm∙h)].
[0090] CFP The total carbon emissions of explosion-proof lighting fixtures within the product evaluation system boundary are expressed in kilograms of carbon dioxide equivalent (kgCO2e). TFU The total contribution to product function is expressed in lumens per hour (lm·h). The calculated carbon efficiency ratio of explosion-proof lighting fixture A is 2.01 × 10⁻⁶. -4 kgCO2e / (lm∙h).
[0091] 6. Calculation and comparison of carbon efficiency ratio of explosion-proof lighting fixtures B and C To verify the applicability and comparability of the carbon efficiency ratio calculation method described in this invention, explosion-proof lamps B and C were selected as control samples for a low-carbon performance comparison analysis with explosion-proof lamp A. The three products have the same structural composition, and their system boundaries and calculation steps are consistent with those of explosion-proof lamp A.
[0092] Among them, explosion-proof lamp B is a high-efficiency, low-power product with a rated power of 40 W, a luminous flux of 180 lm, and a service life of 72,000 h; explosion-proof lamp C is a high-power, long-life product with a rated power of 70 W, a luminous flux of 250 lm, and a service life of 100,000 h.
[0093] The carbon footprint and functional contribution parameters of explosion-proof lighting fixtures B and C were determined according to the same accounting principles as those for explosion-proof lighting fixture A. Since the calculation formulas and steps are consistent, the results are shown in Table 6.
[0094] Table 6 Comparison of Main Parameters and Calculation Results of Different Explosion-proof Lighting Fixtures
[0095] As shown in Table 6, the carbon efficiency ratio calculation method proposed in this invention can compare the low-carbon performance of explosion-proof lighting products with different specifications, energy efficiencies, and lifespan characteristics under a unified evaluation system. Explosion-proof lighting fixture B, due to its higher luminous efficacy and lower energy consumption, has a significantly reduced carbon emission per unit function, and its carbon efficiency ratio is significantly lower than that of type A, indicating superior low-carbon performance. Although explosion-proof lighting fixture C has a larger rated power and a higher total life-cycle carbon emission, its significantly extended lifespan and greater cumulative lighting output result in a lower carbon emission per unit function, demonstrating a strong life-cycle carbon efficiency advantage.
[0096] The carbon efficiency ratio (CER) reflects the level of greenhouse gas emissions per unit of a product's function. The lower the CER value, the less carbon emissions the product generates while providing the same service, and the higher its low-carbon performance. Therefore, the CER index system established in this invention can scientifically characterize the true low-carbon performance of different types of explosion-proof lighting fixtures, providing a quantitative basis for product design optimization and low-carbon technology improvement.
[0097] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention includes, but is not limited to, the embodiments described in the specific implementation. Any other implementations derived by those skilled in the art based on the technical solutions of this invention are also within the scope of protection of this invention.
Claims
1. A method for calculating the low-carbon performance of explosion-proof lighting products, characterized in that: Includes the following steps: Step 1: Collect parameter data of explosion-proof lighting products; Step 2: Calculate the total carbon emissions during the raw material acquisition stage based on the parameter data; Step 3: Calculate the total carbon emissions during the product manufacturing stage based on the parameter data; Step 4: Calculate the total carbon emissions during the product transportation stage based on the parameter data; Step 5: Calculate the total carbon emissions during the product's usage phase based on the parameter data; Step 6: Calculate the total carbon emissions for the recycling and treatment stage based on the parameter data; Step 7: Calculate the carbon efficiency ratio of the explosion-proof lighting products based on the total carbon emissions obtained in Steps 2 to 6.
2. The method for calculating the low-carbon performance of explosion-proof lighting products according to claim 1, characterized in that: The specific implementation method of step 2 is as follows: ； in, CFP m This refers to the total carbon emissions during the raw material acquisition stage; n The number of types of raw materials contained in explosion-proof lighting fixture A; CFP i, m For the first i Carbon emissions generated during the extraction and manufacturing of such raw materials.
3. The method for calculating the low-carbon performance of explosion-proof lighting products according to claim 1, characterized in that: The specific implementation method of step 3 is as follows: ； in, CFP p This refers to the total carbon emissions during the product manufacturing stage. E h,p Electricity consumption during the product manufacturing stage; EF h,p This refers to the carbon emission factors related to electricity during the product manufacturing stage.
4. The method for calculating the low-carbon performance of explosion-proof lighting products according to claim 1, characterized in that: The specific implementation method of step 4 is as follows: ； in, CFP t This refers to the total carbon emissions during the product transportation phase. M l, t For the transportation of the first l The quality of the batch of products; D l, t For the first l Transportation distance for batch products; EF l, t For transportation of vehicles l Carbon emission factors of batch products; s This refers to the number of product batches transported during the product transportation phase.
5. The method for calculating the low-carbon performance of an explosion-proof lighting product according to claim 1, characterized in that: The specific implementation method of step 5 is as follows: ； in, CFP u This represents the total carbon emissions during the product's usage phase. P Product power; Y For product lifespan; EF This is the carbon footprint factor for electricity.
6. The method for calculating the low-carbon performance of an explosion-proof lighting product according to claim 1, characterized in that: The specific implementation method of step 6 is as follows: ； in, CFP r This represents the total carbon emissions during the recycling and processing phase. W q,r For the transportation of the recycling and processing stage q The quality of the material; D q,r For the transportation of the recycling and processing stage q Distance between similar materials; EF q,r For the transportation of vehicles in the recycling and processing stage q Emission factors of similar materials; a This refers to the number of different types of materials transported during the recycling and processing phase. W d,r For recycling and processing d Physical quantity of similar materials; WEF d,r For recycling and processing d Emission factors of similar materials; b This refers to the number of types of materials that are recycled.
7. The method for calculating the low-carbon performance of an explosion-proof lighting product according to claim 1, characterized in that: The specific implementation method of step 7 is as follows: Based on the total carbon emissions obtained in steps 2 to 6, the carbon footprint within the system boundary of the explosion-proof lighting product is obtained: ； in: CFP Carbon footprint within the product system boundary; CFP m Carbon emissions during the raw material acquisition stage; CFP p Carbon emissions during the product manufacturing stage; CFP t Carbon emissions during product transportation; CFP u Carbon emissions during the product's usage phase; CFP r Carbon emissions during the recycling and processing stage; Calculate the total functional contribution of explosion-proof lighting products: ； in, TFU The total contribution to the product's functionality; LF For product luminous flux; Y For product lifespan; Based on the carbon footprint within the system boundary of the explosion-proof lighting fixture product and the total functional contribution of the explosion-proof lighting fixture product, calculate the ratio of the carbon footprint of the explosion-proof lighting fixture product to its functional contribution: ； in, CER Carbon efficiency ratio for explosion-proof lighting fixtures; CFP The carbon footprint of explosion-proof lighting fixtures within the boundaries of the product evaluation system; TFU The total contribution to product functionality.