In this paper, energy and exergy analyses of a new solar-driven triple-staged refrigeration cycle using Duratherm 600 oil as the heat transfer fluid are performed. The proposed cycle is an integration of absorption refrigeration cycle (ARC), ejector (EJE) refrigeration cycle (ERC), and ejector expansion Joule–Thomson (EJT) refrigeration cryogenic cycles which could produce refrigeration output of different magnitude at different temperature simultaneously. Both exergy destruction and losses in each component and hence in the overall system are determined to identify the causes and locations of the thermodynamic imperfection. Several design parameters, including the hot oil outlet temperature, refrigerant turbine inlet pressure, and the evaporator temperature of ERC and EJT cycle are also tested to evaluate their effects on energy and exergy performance. It is observed that largest contribution to cycle irreversibility comes from the central receiver and heliostat field with the heat recovery vapor generator (HRVG), condenser, and ejector of ERC itself also contributing considerably. The exergy efficiency of the solar-driven triple-staged refrigeration cycle is 4% which is much lower than its energy efficiency of 10%, respectively. The results clearly reveal that thermodynamic investigations based on energy analysis alone cannot legitimately be complete unless the exergy concept becomes a part of the analysis.
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February 2014
Research-Article
Energy and Exergy Analyses of a New Triple-Staged Refrigeration Cycle Using Solar Heat Source
Abdul Khaliq,
Abdul Khaliq
1
e-mail: khaliqsb@gmail.com
1Corresponding author.
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Rajesh Kumar,
Rajesh Kumar
Department of Mechanical Engineering,
Government of NCT of Delhi,
Delhi Technological University
,Government of NCT of Delhi,
Bawana Road
,Delhi 110042
, India
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Ibrahim Dincer,
Ibrahim Dincer
Faculty of Engineering and Applied Science,
University of Ontario Institute of Technology
,2000 Simcoe Street North
,Oshawa L1H7K4 ON
, Canada
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Farrukh Khalid
Farrukh Khalid
Department of Mechanical Engineering,
Aligarh Muslim University
,Aligarh 202002
,Uttar Pradesh
, India
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Abdul Khaliq
e-mail: khaliqsb@gmail.com
Rajesh Kumar
Department of Mechanical Engineering,
Government of NCT of Delhi,
Delhi Technological University
,Government of NCT of Delhi,
Bawana Road
,Delhi 110042
, India
Ibrahim Dincer
Faculty of Engineering and Applied Science,
University of Ontario Institute of Technology
,2000 Simcoe Street North
,Oshawa L1H7K4 ON
, Canada
Farrukh Khalid
Department of Mechanical Engineering,
Aligarh Muslim University
,Aligarh 202002
,Uttar Pradesh
, India
1Corresponding author.
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received March 8, 2013; final manuscript received March 14, 2013; published online July 2, 2013. Editor: Gilles Flamant.
J. Sol. Energy Eng. Feb 2014, 136(1): 011004 (11 pages)
Published Online: July 2, 2013
Article history
Received:
March 8, 2013
Revision Received:
March 14, 2013
Citation
Khaliq, A., Kumar, R., Dincer, I., and Khalid, F. (July 2, 2013). "Energy and Exergy Analyses of a New Triple-Staged Refrigeration Cycle Using Solar Heat Source." ASME. J. Sol. Energy Eng. February 2014; 136(1): 011004. https://doi.org/10.1115/1.4024126
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