In this paper, a novel industrial waste heat recovery based cogeneration is proposed for the combined production of power and refrigeration. The system is an integration of Rankine power cycle and absorption refrigeration cycle. A thermodynamic analysis through energy and exergy is employed, and a comprehensive parametric study is performed to investigate the effects of exhaust gas inlet temperature, pinch-point, and gas composition on energy efficiency, power-to-cold ratio, and exergy efficiency of the cogeneration cycle and exergy destruction in each component. The variation in specific heat with exhaust gas composition and temperature is accounted in the analysis for further discussion. The first-law efficiency decreases while power-to-cold ratio and exergy efficiency increase with increasing exhaust gas inlet temperature. The parameters, such as power-to-cold ratio and second-law efficiency, decrease while first-law efficiency increases with increasing pinch-point. Exergy efficiency significantly varies with gas composition and oxygen content of the exhaust gas. Approximating the exhaust gas as air, and the air standard analysis leads to either underestimation or overestimation of cogeneration cycle performance on exergy point of view. Exergy analysis indicates that maximum exergy is destroyed during the steam generation process; which represents around 40% of the total exergy destruction in the overall system. The exergy destruction in each component of the system varies significantly with exhaust gas inlet temperature and pinch-point. The present analysis contributes further information on the role of composition, exhaust gas temperature, and pinch-point influence on the performance of a waste heat recovery based cogeneration system from an exergy point of view.
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June 2009
Research Papers
Exergy Analysis of an Industrial Waste Heat Recovery Based Cogeneration Cycle for Combined Production of Power and Refrigeration
A. Khaliq
Abdul Khaliq is a Associate Professor with the Faculty of Engineering and Applied Science at the University of Ontario institute of Technology in Oshawa, Canada (On leave from Mechanical Engineering Department of Jamia Millia Isamia, New Delhi, India). He has published large number of research papers in various International Journals. He has delivered many keynotes and invited lectures. He is a recipient of BOYSCAST Fellowship of DST of the Government of India and Career Award for Young Teachers of AICTE of the Government of India. He has supervised large number of PhD thesis in the area of Power and Refrigeration system.
A. Khaliq
Faculty of Engineering and Applied Science,
e-mail: abd_khaliq2001@yahoo.co.in
University of Ontario Institute of Technology
, 2000 Simcoe Street, N. Oshawa, ON, LIH 7K4, Canada
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R. Kumar
Rajesh Kumar is a Assistant Professor and Head of the Department in Mechanical and Automation Engineering Department of Amity School of Engineering and Technology, GGSIPU, New Delhi. He is Doctorate from Mechanical Engineering Department of Jamia Millia Islamia, New Delhi (A Central University). He has published number of papers in national and international Journal in the field of thermal Science and Refrigeration and Air-Conditioning.
R. Kumar
Amity School of Engineering and Technology,
GGSIPU
, New Delhi 110061, India
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I. Dincer
Ibrahim Dincer is a Professor and Director with the Faculty of Engineering and Applied Science at the University of Ontario Institute of Technology in Oshawa, Canada. He has chaired many national and international conferences, symposia, workshops, and technical meetings. He has delivered many keynote and invited lectures. He is an active member of various international scientific organizations, and serves as editor-in-chief, associate editor, regional editor, and editorial board member on various prestigious international journals. He is a recipient of several research, teaching, and service awards.
I. Dincer
Faculty of Engineering and Applied Science,
University of Ontario Institute of Technology
, 2000 Simcoe Street, North Oshawa, ON, LIH 7K4, Canada
Search for other works by this author on:
A. Khaliq
Abdul Khaliq is a Associate Professor with the Faculty of Engineering and Applied Science at the University of Ontario institute of Technology in Oshawa, Canada (On leave from Mechanical Engineering Department of Jamia Millia Isamia, New Delhi, India). He has published large number of research papers in various International Journals. He has delivered many keynotes and invited lectures. He is a recipient of BOYSCAST Fellowship of DST of the Government of India and Career Award for Young Teachers of AICTE of the Government of India. He has supervised large number of PhD thesis in the area of Power and Refrigeration system.
R. Kumar
Rajesh Kumar is a Assistant Professor and Head of the Department in Mechanical and Automation Engineering Department of Amity School of Engineering and Technology, GGSIPU, New Delhi. He is Doctorate from Mechanical Engineering Department of Jamia Millia Islamia, New Delhi (A Central University). He has published number of papers in national and international Journal in the field of thermal Science and Refrigeration and Air-Conditioning.
I. Dincer
Ibrahim Dincer is a Professor and Director with the Faculty of Engineering and Applied Science at the University of Ontario Institute of Technology in Oshawa, Canada. He has chaired many national and international conferences, symposia, workshops, and technical meetings. He has delivered many keynote and invited lectures. He is an active member of various international scientific organizations, and serves as editor-in-chief, associate editor, regional editor, and editorial board member on various prestigious international journals. He is a recipient of several research, teaching, and service awards.
J. Energy Resour. Technol. Jun 2009, 131(2): 022402 (9 pages)
Published Online: May 28, 2009
Article history
Received:
March 11, 2008
Revised:
November 13, 2008
Published:
May 28, 2009
