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.
出处
《长沙理工大学学报（自然科学版）》
CAS
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)
关键词
双背压凝汽器
效率
熵产
负荷分配
dual-pressure condenser
efficiency
entropy generation
burden distribution
