流体机械2018，Vol.46Issue(2)：68-73,6.DOI:10.3969/j.issn.1005-0329.2018.02.014
有机朗肯循环中工质泵对系统性能的影响
Influence of Working Fluid Pump on System Performance in Organic Rankine Cycle
摘要
Abstract
Considering the question of energy consumption of working fluid pump have a huge impact on the system efficiency of organic Rankine cycle(ORC). This paper analysis the power generation system which using R245fa as working fluid,The system's first law efficiency,mass flow rate and volume flow rate is calculated while with the variation of working condition at different pump efficiency. The results show that there is a huge influence on first law efficiency for whether considering energy consumption of working medium pump,this impact will enlarge with the efficiency decrease of expander and working medium pump;the system efficiency will get more influence by increase the evaporation temperature,but the condensation temperature don't have this influence. While the evaporating temperature is 99℃,condensing temperature is 35℃,expander efficiency is 0.7, pump efficiency is 0.3,the first law efficiency is 9.6% when ignore pump power,the first law efficiency is 8.5% while pump power is considered. The energy consumption of pump have a ratio at 12.5% of expander power.关键词
有机朗肯循环/工质泵/第一定律效率/泵效率Key words
organic rankine cycle/working medium pump/first law efficiency/pump efficiency分类
机械制造引用本文复制引用
吴腾马,柳建华,徐小进,刘旗..有机朗肯循环中工质泵对系统性能的影响[J].流体机械,2018,46(2):68-73,6.基金项目
上海市部分地方院校能力建设专项计划项目(16060502600) （16060502600）
