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Performance analysis and working fluid selection for geothermal energy-powered organic Rankine-vapor compression air conditioning
Bu,Xianbiao1; Wang,Lingbao1; Li,Huashan1,2
2013-08-23
Source PublicationGeothermal Energy
ISSN2195-9706
Volume1Issue:1
Corresponding AuthorBu,Xianbiao(buxb@ms.giec.ac.cn)
AbstractAbstractBackgroundTo utilize geothermal energy from hot springs, an organic Rankine cycle/vapor compression cycle (ORC/VCC) system was employed for air conditioning and a thermodynamic model was developed.MethodsSix working fluids, R123, R134a, R245fa, R600a, R600 and R290, were selected and compared in order to identify suitable working fluids which may yield high system efficiencies.ResultsThe calculated results show that because of high system pressure for R290 and R134a, R600a is the more suitable working fluid for ORC in terms of expander size parameter, system efficiency and system pressure. In addition, R600a is also the most appropriate working fluid for VCC in terms of pressure ratio and coefficient of performance. R600 and R600a are more suitable working fluids for ORC/VCC in terms of overall coefficient of performance, refrigerating capacity per unit mass flow rate and chilled water yield from per ton hot water.ConclusionsIn sum, R600a is the most suitable working fluid for ORC/VCC through comprehensive comparison of ORC efficiency, expander size parameter, pressure ratio, coefficient of performance, system pressure and chilled water yield from per ton hot water for six different working fluids. However, the flammability of R600a should attract enough attention.
KeywordWorking fluid selection Waste heat Air conditioning Hot spring Organic Rankine-vapor compression Expander
DOI10.1186/2195-9706-1-2
Language英语
WOS IDBMC:10.1186/2195-9706-1-2
PublisherSpringer Berlin Heidelberg
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16840
Collection中国科学院广州能源研究所
Corresponding AuthorBu,Xianbiao
Affiliation1.Chinese Academy of Sciences; Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion
2.University of Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Bu,Xianbiao,Wang,Lingbao,Li,Huashan. Performance analysis and working fluid selection for geothermal energy-powered organic Rankine-vapor compression air conditioning[J]. Geothermal Energy,2013,1(1).
APA Bu,Xianbiao,Wang,Lingbao,&Li,Huashan.(2013).Performance analysis and working fluid selection for geothermal energy-powered organic Rankine-vapor compression air conditioning.Geothermal Energy,1(1).
MLA Bu,Xianbiao,et al."Performance analysis and working fluid selection for geothermal energy-powered organic Rankine-vapor compression air conditioning".Geothermal Energy 1.1(2013).
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