摘要
以R245ca和R601作为循环工质,根据热力学第一、第二定律,研究了低温抽气回热式有机朗肯循环系统的两个参数,即抽气压力比和抽气系数对系统的影响。通过MATLAB软件结合REFPROP软件编程计算,确定不同蒸发温度下的最佳抽气压力比和抽气系数,得出对应的最大热效率和效率。
In light of the first and second law of thermodynamics, this paper, using R245ca and R601 as the working fluid, studies the impacts on the system by the two parameters of low-temperature regenerative extraction organic Ran- kine cycle, i. e. extraction pressure ratio and extraction coefficient. Through the programming and calculation by combining MATLAB with REFPROP, the optimal extraction pressure ratio and extraction coefficient are defined at different evaporation temperatures. Accordingly, the optimal thermal efficiency and cxergy efficiency are calculated.
出处
《华东电力》
北大核心
2013年第2期448-451,共4页
East China Electric Power
基金
国家自然科学基金项目(51076044)
中央高校基本科研业务费专项资金资助项目(09MG36)~~
关键词
有机朗肯循环
抽气回热
抽气压力比
抽气系数
organic Rankine cycle（ORC）
regenerative extraction
extraction pressure ratio
extraction coefficient
