【摘要】 多联产系统评价准则对系统集成开拓与设计优化至关重要。传统的热力学性能指标难以全面科学地评估多能源输入、多功能的联产系统性能特性,也不适合作为系统设计优化的目标函数。文章概述了系统热效率、效率及折合性能指标等目前常用的评价准则及其存在问题;概述了采用相对节能率时的通常做法和存在问题以及对它的改进;概述了经济效率和经济系数以及能量综合梯级利用率等新评价准则的研究进展;还介绍了联产系统全工况评价准则的探讨研究等。更多还原

【Abstract】 The evaluation criteria is very important toassess and optimize the energy saving of polygeneration systems.The polygenertion systems could not be assessed by conventional thermal performance index due to their multi-inputs and multi-outputs.This paper summarized the conventional methods of estimating the polygeneration systems including thermal efficiency,exergy efficiency,and equivalent performances index,and indicated their faults;given the general utilization method of relative energy saving ratio,and also discussed its advantages and problems.The research and achievement of new evaluation criteria,such as economic exergy efficiency,coefficient of economic exergy and energy cascade utilization rate are overviewed.Also the research of evaluation criterion for polygeneration system in all operating states are introduced.更多还原