典型文献
Optimization of cold-end system of thermal power plants based on entropy generation minimization
文献摘要：
Cold-end systems are heat sinks of thermal power cycles,which have an essential effect on the overall performance of thermal power plants.To enhance the efficiency of thermal power plants,multi-pressure con-densers have been applied in some large-capacity thermal power plants.However,little attention has been paid to the optimization of the cold-end system with multi-pressure condensers which have multiple parameters to be identi-fied.Therefore,the design optimization methods of cold-end systems with single-and multi-pressure condensers are developed based on the entropy generation rate,and the genetic algorithm(GA)is used to optimize multiple parameters.Multiple parameters,including heat transfer area of multi-pressure condensers,steam distribution in condensers,and cooling water mass flow rate,are optimized while considering detailed entropy generation rate of the cold-end systems.The results show that the entropy generation rate of the multi-pressure cold-end system is less than that of the single-pressure cold-end system when the total condenser area is constant.More-over,the economic performance can be improved with the adoption of the multi-pressure cold-end system.When compared with the single-pressure cold-end system,the excess revenues gained by using dual-and quadruple-pressure cold-end systems are 575 and 580 k$/a,respectively.
文献关键词：
中图分类号：
作者姓名：
Yue FU;Yongliang ZHAO;Ming LIU;Jinshi WANG;Junjie YAN
作者机构：
State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China
文献出处：
引用格式：
[1]Yue FU;Yongliang ZHAO;Ming LIU;Jinshi WANG;Junjie YAN-.Optimization of cold-end system of thermal power plants based on entropy generation minimization)[J].能源前沿,2022(06):956-972
A类：
densers,condensers
B类：
Optimization,cold,end,thermal,power,plants,entropy,generation,minimization,Cold,systems,heat,sinks,cycles,which,have,essential,effect,overall,performance,To,enhance,efficiency,pressure,been,applied,some,large,capacity,However,little,attention,has,paid,optimization,multiple,parameters,identi,fied,Therefore,design,methods,single,developed,rate,genetic,algorithm,GA,used,Multiple,including,transfer,area,steam,distribution,cooling,water,mass,flow,optimized,while,considering,detailed,results,show,that,less,than,when,total,constant,More,economic,can,improved,adoption,When,compared,excess,revenues,gained,by,using,dual,quadruple,respectively
AB值：
0.429611
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