The purpose of this paper is to demonstrate the importance of the use of the exergy analysis in the optimization of the geometry of a periodic-flow regenerator. The optimum geometry of the regenerator is determined using the unit cost of exergy of the warm air delivered as the objective function. The running cost is determined using different unit costs for the pressure component of exergy and the thermal component of exergy which are evaluated separately. The ratio of the two unit costs has been calculated for an air-conditioning application in which the regenerator is used. A mathematical model of condensation, evaporation, thermal conductivity and heat transfer is presented for calculating the fluid and matrix temperatures effect on the regenerator performance. The governing differential equations have been formulated in terms of the characteristic dimensionless groups and
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Technical Papers
Evaluation of Combined Heat and Mass Transfer Effect on the Thermoeconomic Optimization of an Air-Conditioning Rotary Regenerator
Rahim K. Jassim
e-mail: rkjassim@yahoo.com
Rahim K. Jassim
College of Technology at Jeddah, P.O. Box 42204, Jeddah 21541, Kingdom of Saudi Arabia
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Rahim K. Jassim
College of Technology at Jeddah, P.O. Box 42204, Jeddah 21541, Kingdom of Saudi Arabia
e-mail: rkjassim@yahoo.com
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division September 10, 2002; revision received April 1, 2003. Associate Editor: J. N. Chung.
J. Heat Transfer. Aug 2003, 125(4): 724-733 (10 pages)
Published Online: July 17, 2003
Article history
Received:
September 10, 2002
Revised:
April 1, 2003
Online:
July 17, 2003
Citation
Jassim, R. K. (July 17, 2003). "Evaluation of Combined Heat and Mass Transfer Effect on the Thermoeconomic Optimization of an Air-Conditioning Rotary Regenerator ." ASME. J. Heat Transfer. August 2003; 125(4): 724–733. https://doi.org/10.1115/1.1589504
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