600 MW超临界机组采用双压凝汽器的研究  

The study on dual-pressure condenser applied to 600 MW supercritical unit

作　　者：曹志猛[1] 徐慧芳[1] 肖汉才[1] 罗可[2] 

机构地区：[1]长沙理工大学能源与动力工程学院,湖南长沙410076 [2]长沙理工大学计算机与通信工程学院,湖南长沙410076

出　　处：《长沙理工大学学报（自然科学版）》2007年第4期60-63,共4页Journal of Changsha University of Science and Technology:Natural Science

基　　金：湖南省教育厅重点科研项目(07A001)

摘　　要：基于传热熵产最小原理对多背压凝汽器进行优化,分析得出各级传热面积相等时熵产最小,并通过比较传热过程中熵产的大小,导出负荷最佳分配公式.并以国内某600 MW超临界机组为例,计算了该机组采用双压凝汽器的优越性.Entropy generation optimization of dual-pressure condenser was analyzed in this paper.It was pointed out that the entropy generation was minimized when the total heat-transfer area was divided equally at each stage.By comparing the size of entropy generation in heat-transfer process,the formula of burden optimum distribution were obtained.This paper takes some 600 MW supercritical unit as an example,calculating out the advantages of applying a dual-pressure condenser to this unit.

关 键 词：双背压凝汽器 效率 熵产 负荷分配 

分 类 号：TM621.3[电气工程—电力系统及自动化]