Optimization of low temperature geothermal organic Rankine power generation system

In this paper, a low-temperature geothermal organic Rankine Cycle (ORC) power generation system model is established. R245fa is used as the circulating working fluid. The calculation program is compiled using the engineering calculation software EES, and the thermodynamic parameters and thermodynami...

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Main Authors: Bing Hu, Jiajun Guo, Yu Yang, Youyuan Shao
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484722001019
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author Bing Hu
Jiajun Guo
Yu Yang
Youyuan Shao
author_facet Bing Hu
Jiajun Guo
Yu Yang
Youyuan Shao
author_sort Bing Hu
collection DOAJ
description In this paper, a low-temperature geothermal organic Rankine Cycle (ORC) power generation system model is established. R245fa is used as the circulating working fluid. The calculation program is compiled using the engineering calculation software EES, and the thermodynamic parameters and thermodynamic properties of the main state points of the ORC are theoretically calculated. The effects of narrow point temperature difference, evaporation temperature, geothermal water temperature and condenser end temperature difference on system performance are analyzed. The results show that the narrow point temperature difference has a significant impact on the ORC performance. Considering system performance and economic cost comprehensively, the best narrow point temperature difference and the best condenser end temperature difference are both within the range of 5–7 K.
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spelling doaj.art-d714421aeebb4f89aee651af08c605e12022-12-22T02:12:17ZengElsevierEnergy Reports2352-48472022-06-018129138Optimization of low temperature geothermal organic Rankine power generation systemBing Hu0Jiajun Guo1Yu Yang2Youyuan Shao3Guangdong Provincial Key Laboratory of Distributed Energy Systems, Guangdong Provincial Engineering Research Center of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China; Corresponding author.Guangdong Provincial Key Laboratory of Distributed Energy Systems, Guangdong Provincial Engineering Research Center of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, ChinaDongguan City College, Dongguan 523419, ChinaGuangdong Provincial Key Laboratory of Distributed Energy Systems, Guangdong Provincial Engineering Research Center of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, ChinaIn this paper, a low-temperature geothermal organic Rankine Cycle (ORC) power generation system model is established. R245fa is used as the circulating working fluid. The calculation program is compiled using the engineering calculation software EES, and the thermodynamic parameters and thermodynamic properties of the main state points of the ORC are theoretically calculated. The effects of narrow point temperature difference, evaporation temperature, geothermal water temperature and condenser end temperature difference on system performance are analyzed. The results show that the narrow point temperature difference has a significant impact on the ORC performance. Considering system performance and economic cost comprehensively, the best narrow point temperature difference and the best condenser end temperature difference are both within the range of 5–7 K.http://www.sciencedirect.com/science/article/pii/S2352484722001019Low temperature geothermal energySystem optimizationOrganic Rankine
spellingShingle Bing Hu
Jiajun Guo
Yu Yang
Youyuan Shao
Optimization of low temperature geothermal organic Rankine power generation system
Energy Reports
Low temperature geothermal energy
System optimization
Organic Rankine
title Optimization of low temperature geothermal organic Rankine power generation system
title_full Optimization of low temperature geothermal organic Rankine power generation system
title_fullStr Optimization of low temperature geothermal organic Rankine power generation system
title_full_unstemmed Optimization of low temperature geothermal organic Rankine power generation system
title_short Optimization of low temperature geothermal organic Rankine power generation system
title_sort optimization of low temperature geothermal organic rankine power generation system
topic Low temperature geothermal energy
System optimization
Organic Rankine
url http://www.sciencedirect.com/science/article/pii/S2352484722001019
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AT yuyang optimizationoflowtemperaturegeothermalorganicrankinepowergenerationsystem
AT youyuanshao optimizationoflowtemperaturegeothermalorganicrankinepowergenerationsystem