海洋温差发电有机朗肯循环工质选择  

Selection of working fluids for ocean thermal energy conversion power generation organic Rankine cycle

作　　者：王辉涛[1] 王华[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,云南昆明650093

出　　处：《海洋工程》2009年第2期119-123,共5页The Ocean Engineering

基　　金：云南省自然科学重点基金资助项目(2007E0014Z)

摘　　要：为了筛选出适宜于海洋温差热力发电有机朗肯循环的工质,采用PR状态方程计算11种低沸点有机流体工质在闭式海洋温差有机朗肯循环中的热力性能。结果表明,随着工质临界温度升高,循环热效率总体呈上升趋势。正丁烷具有较高的循环热效率,其蒸发压力较低、凝汽压力比较适中,比较适合用作海洋温差发电有机朗肯循环的工质。Aiming to make a suitable selection of the working fluids for Ocean thermal energy conversion（OTEC） power generation organic Rankine cycle, the PR equation of state was adopted to calculate the thermal performances of OTEC organic Rankine cycle using each of eleven dry fluids. The following conclusions were ＆＇awn： as the critial temperature of the selected fluid increases, the thermal efficiency of the Rank- ine cycle will rise as a whole. Fluid R600 exhibits eonsiderably high values of thermal efficiency, meanwhile, the evaporation pressure and the condensation pressure are in the appropriate range. It is likely to be the most promising fluid for OTEC organic Rankine cycles.

关 键 词：海洋温差发电 有机朗肯循环 热效率 工质 

分 类 号：P743.4[天文地球—海洋科学]