Advances in New and Renewable Energy >
Thermodynamic Analysis of Organic Rankine Cycle System with R1234yf
Received date: 2014-04-02
Revised date: 2014-06-20
Online published: 2014-06-30
This paper presents a study on optimizing low-medium temperature geothermal Organic Rankine Cycle (ORC) power generation. Here we examine the effect of working fluid R1234yf on net power output per kilogram of geothermal water and exergy efficiency of the system by using first and second thermodynamic laws. The overall system performance is then compared with the system using R245fa. The results show that there exist the optimum evaporation and condensation temperature which can maximize net power output per kilogram geothermal water and exergy efficiency of the system. The maximum net power output per kilogram of geothermal water and exergy efficiency is higher by using R1234yf as working fluid at the geothermal source temperature ranging from 110oC to 150oC.
LIANG Li-peng , CAO Yuan-shu , HU Bing , BU Xian-biao , MA Wei-bing . Thermodynamic Analysis of Organic Rankine Cycle System with R1234yf[J]. Advances in New and Renewable Energy, 2014 , 2(3) : 197 -203 . DOI: 10.3969/j.issn.2095-560X.2014.03.005
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