Parametric optimization of organic Rankine cycle with R245fa/R601a as working fluid

被引：0
|
作者：
Zhu J. [1 ]
Kang Z. [1 ]
An Q. [1 ]
Li T. [2 ]
机构：
[1] Key Laboratory of Efficient Utilization of Low and Medium Grade Energy of Ministry of Education, Tianjin University, Tianjin
[2] School of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin
来源：
Transactions of Tianjin University | 2015年 / 21卷 / 1期
关键词：
medium temperature geothermal source; optimization parameter; organic Rankine cycle; system performance; zeotropic mixture;
D O I：
10.1007/s12209-015-2361-8
中图分类号：
学科分类号：
摘要：
In order to select the appropriate working fluids and optimize parameters for medium-temperature geothermally-powered organic Rankine cycle (ORC), R245fa is mixed with R601a at geothermal water temperature of 110 °C. Based on thermodynamics, the characteristics of mixture and its influence on the performance of ORC under different evaporating temperatures and composition proportions are analyzed. Results show that the zeotropic mixture R245fa/R601a (0.4/0.6) has the highest performance. When the evaporating temperature reaches 67 °C, the outlet temperature of geothermal water is 61 °C, the net power output is the highest and the thermal efficiency is about 9%. © 2015, Tianjin University and Springer-Verlag Berlin Heidelberg.
引用
收藏
页码：69 / 75
页数：6
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