Investigation of exergy efficiency of organic Rankine cycle

被引：1
|
作者：
Liu, G. L. [1 ]
Xu, J. L. [1 ]
Cao, S. [2 ]
机构：
[1] North China Elect Power Univ, Beijing Key Lab Multiphase Flow & Heat Transfer L, Beijing 102206, Peoples R China
[2] Zhengzhou Univ Light Ind, Sch Energy & Power Engn, Zhengzhou 450002, Henan, Peoples R China
来源：
2019 INTERNATIONAL CONFERENCE ON NEW ENERGY AND FUTURE ENERGY SYSTEM | 2019年 / 354卷
关键词：
SYSTEM;
D O I：
10.1088/1755-1315/354/1/012050
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Organic Rankine cycle (ORC) which recovers waste heat in the temperature range of 80 degrees C-140 degrees C was investigated. Exergy efficiencies of various components and ORC system were paid great attention. The working fluids of R245fa and R600a are used. It is found that, for saturated ORCs, the expander inlet temperature has the optimum value, so the system exergy efficiency is maximum. With the increase of heat source temperature, the optimal inlet temperature of the expander is also increased. And also for saturated ORCs, the exergy efficiencies of evaporator and expander are highest efficiency, when evaporator exergy efficiency is increased with increase of heat source temperatures, the expander exergy efficiency is unchanged. The condenser decreased exergy efficiencies by increasing the heat source temperatures.
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页数：5
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