A comprehensive assessment method for carbon emissions in manufacturing workshops

Abstract

The invention provides a manufacturing workshop carbon discharge comprehensive evaluation method which includes the following steps: through establishment of manufacturing workshop machining process schema description, the manufacturing workshop is decomposed into three layers: a device layer, a part layer and a workshop layer from bottom to top; based on a full-life-circle evaluation method, energy consumption footprint and carbon footprint calculation methods for the device layer, the part layer and the workshop layer are constructed; then according to a device-working procedure-part-workshop hierarchical structure, particle decomposition and evolution are carried out on carbon discharge activities in the manufacturing workshop and based on an environment efficiency concept, a plurality of carbon efficiency evaluation indexes including carbon discharge utilization rate, production-carbon efficiency and economical-carbon efficiency and the like under different evaluation granularities are established; and at last, a multi-distribute concession method of carbon discharge comprehensive evaluation under different evaluation granularities of the manufacturing workshop is established. The method is capable of helping enterprises to find out weak links of energy conservation and emission reduction and also capable of providing data support to production decisions of the enterprises.

Description

technical field [0001] The invention relates to a method for comprehensive assessment of carbon emissions in a manufacturing workshop. Background technique [0002] As we all know, China is a big manufacturing country, and manufacturing is an important part of the national economy. In 2010, China's manufacturing industry accounted for about 40.1% of GDP. serious environmental problem. The energy consumption of my country's manufacturing industry accounts for 63% of the country's primary energy consumption, and the energy consumption per unit of product is 20% to 30% higher than the international level. Gross energy consumption will be reduced by 16%, and carbon dioxide emissions per unit of GDP will be reduced by 17%; 1.034 tons of standard coal decreased by 16%, 32% lower than 1.276 tons of standard coal in 2005; during the "Twelfth Five-Year Plan" period, 670 million tons of standard coal was saved. Therefore, energy conservation and emission reduction is an inevitable tr...

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Problems solved by technology

[0006] 3) In terms of evaluating and optimizing carbon emissions in the manufacturing process, researchers mostly focus on the optimization goals of workshop carbon emissions and production and processing costs, but often ignore the energy utilization rate, production efficiency, and economic benefits of the processing process. After all, enterprises The main purpose is economic benefits, so the previous research goals are too one-sided, and often cannot be used in actual operation;

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