Weighting-based method for measuring comprehensive performance of distributed CCHP (Combined Cooling, Heating and Power) system

Abstract

The invention relates to a weighting-based method for measuring comprehensive performance of a distributed CCHP (Combined Cooling, Heating and Power) system, comprising the following steps of: (1) index system revising process: dividing the data information of a distributed energy system into a base layer, a performance layer and an evaluation result layer, if the original index system is inconsistent with the current national policy, the economic policy, the energy technical information and the user requirements, firstly revising the reference system and carrying out quantitative processing on the qualitative indexes of the base layer; (2) basic data analyzing process: carrying out processing procedures of (2.1)-(2.5) according to different performance indexes to obtain a comprehensive score of economy, energy efficiency, environmental performance, safety and technicality of each configuration scheme and constructing a matrix F by utilizing the score value of each performance parameter; and (3) comprehensive performance evaluating process: giving a comprehensive score value with a mathematical relationship of H=L*W, wherein the H is the comprehensive score value, namely the final result. In the invention, methods of subjective weighting and objective weighting are comprehensively utilized to measure the CCHP system; therefore, favorable generality and high reliability are achieved.

Description

A Weighted-Based Method for Comprehensive Performance Measurement of Distributed Cogeneration System technical field The invention relates to a method for measuring comprehensive performance of a distributed combined cooling, heating and power (CCHP) system. Background technique Based on the technical characteristics of energy cascade utilization, the distributed combined cooling, heating and power (CCHP) system prioritizes the input high-grade heat energy for power generation, and recovers waste heat to produce cooling capacity and low-grade heat. The comprehensive energy utilization efficiency can reach 80% to 90% %, is an advanced energy utilization technology. The working mode of the CCHP system is to use natural gas, coal gas and other fossil fuels as input energy, and output power, heat and cooling through the means of power generation, refrigeration and heating equipment, which realizes the cascade utilization of energy and greatly improves the energy efficiency. ...

AI Technical Summary

Problems solved by technology

In order to overcome the shortcomings of poor versatility and low reliability of the existing distributed combined cooling, heating and power system comprehensive performance measurement methods, the

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