Fuzzy Comprehensive Evaluation on Energy-efficiency of Plant Boiler based on Exergy Analysis

摘要

Currently, boiler efficiency evaluation system is always established on the method of heat balance based on the first law of thermodynamics as the main indicator, it is imperfect. Using Exergy method, which is based on the first and the second law of thermodynamics, not only focus on energy consumption, but also take the useful energy utilization levels into account, combined with evaluation of environmental indicators, the evaluation index system is established for energy-efficient of boilers. Then, in view of the structural characteristics of the index system, using fuzzy comprehensive evaluation method evaluates the energy efficiency of boilers. Finally, by using this evaluation method, energy efficiency was studied.