DEA cross model energy efficiency analysis method based on principal component fusion

Abstract

The invention discloses a DEA cross model energy efficiency analysis method based on principal component fusion. The method comprises the following steps: obtaining 20 groups of production data of a PTA (purified terephthalic acid ) production device; obtaining input indexes of a phthalic acid production device according to the 20 groups of production data, wherein the input indexes comprise 17 factors influencing acetic acid consumption; obtaining a hierarchical model of the 17 factors according to a preset interpretative structural model; according to a preset analytic hierarchy process andthe hierarchical model, forming fusion data; and obtaining output indexes according to a preset data envelopment analysis cross model and the fusion data, wherein the output indexes comprise tower topconductivity. The method optimizes input data of the data envelopment analysis cross model, and improves distinction degree of analysis results; and besides, by carrying out analysis and evaluation on production efficiency of the PTA production device, relative effectiveness of the production efficiency is obtained, so that energy saving and consumption reducing direction of the PTA production device is obtained, and meanwhile, effectiveness and applicability of the analysis conclusion above can be proved.

Description

technical field [0001] The invention relates to the technical field of purified terephthalic acid production, in particular to a DEA cross model energy efficiency analysis method based on principal component fusion. Background technique [0002] In my country's industrial development, the development of complex chemical industry plays a decisive role. At the same time, energy saving and emission reduction is a topic of great concern all over the world. Energy efficiency is an effective way to achieve environmental and economic goals in complex chemical industry processes. However, the energy efficiency level of the pure terephthalic acid (PTA) industry in the chemical industry is far below the international advanced level. my country's PTA industry started in the 1980s and is widely used, involving textile Industry, chemical fiber and other aspects, and it plays an important role in chemical raw materials. It is an important raw material for the production of polyethylene te...

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Problems solved by technology

[0003] The existing technology uses the average value method and the optimal index method to benchmark the energy efficiency analysis of enterprises. However, the average value method and the optimal index method cannot well introduce energy-saving knowledge into the benchmarking analysis, so they cannot give various factors and indicators. Uniformly excellent energy efficiency value benchmarks to guide actual energy efficiency state analysis

The energy efficiency analysis method based on the combination of Analytic hierarchy process (AHP) and Data Envelopment Analysis (DEA) models is widely used in agriculture, logistics and other industries, but the main factors are not considered in the application of PTA industry Effect of Acetic Acid on Energy Efficiency of PTA

The energy consumption analysis method of PTA production equipment based on the data fusion method has achieved good application results, but the effect of the influencing factors on the energy consumption index has not been considered

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