中文摘要：

摘结器络的法通各摘要制冷空结了制冷空调耗散热阻络图的构建方的整体约束方,实现了换热通过对系统中各变量间的整调系统是典型系统性能全局阻概念,并以此方法.通过分析方程.根据该约热器网络性能换热器网络的体约束方程,型的能源利用局优化的火积耗此为基础阐述了析等效热阻网络约束方程和拉格能的多目标优化的耗散热阻分结合拉格朗日系统,优化其散热阻法的研了制冷空调系络图,结合电路格朗日条件极化.在此基础上分析以及热功日方程,实现了其性能有利于提研究进展.首先统中所涉及的路原理从物理极值法,介绍了上,对于包含功转换过程的热制冷系统的性提高能源利用先介绍了火积的由的换热器网络的理上导出了系统了换热器网络的热功转换过程热力学分析,构性能优化.效率.本文总由来以及换热的等效热阻网统中各变量间的定量优化方程的制冷系统,构建了系统中热方,

英文摘要：

Refrigeration and air-conditioning systems are typical energy utilization systems,and their performance optimization is significant for improvement of energy utilization efficiency. Researchers proposed many optimization methods for these systems,but there are still many limitations in previous research. As the concept of entrasy is proposed in recent years,many new research methods for heat exchanger systems are presented. This paper reviews a newly proposed entransy dissipation-based thermal resistance（EDTR） method for optimization of refrigeration and air-conditioning systems. We first introduce the origin of entransy,the concept of EDTR,and the equivalent circuit for three basic heat exchanger networks,and on this basis we introduce the construction of equivalent thermal resistance networks（ETRNs） for heat exchanger networks（HENs） in refrigeration and air-conditioning systems,which gives a clear description for the heat transfer process in HENs. Analysis of ETRNs by the circuitous philosophy gives the inherent constraints of each system parameter in physics,and then we establish all the constraint equations for HENs. Based on these constraints together with the Lagrange multiplier method,we introduce a global optimization method for HENs,which can optimize the HEN performance with multi-objectives. This method gives the optimal distributions of heat exchanger area of each heat exchanger and mass flow rates in each pipe to minimize the cost and energy consumption. In addition,for a refrigeration system including heat-work conversion processes,analysis of the HENs with the EDTR method and the heat-work conversion processes with the thermodynamic method also gives the inherent constraints of each system parameter. We also use these all the constraint equations established by the EDTR and the thermodynamic method to construct a Lagrange function for refrigeration system,and get the optimal design scheme for a refrigeration system by conditional extreme value method. Finally,We summarize the advantage