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Optimal Allocation of Heat Transfer Area for a Heat Engine

Published online by Cambridge University Press:  05 May 2011

Y. C. Hsieh  and
J. S. Chiou
Y. C. Hsieh*
Affiliation:
Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
J. S. Chiou*
Affiliation:
Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
*
* Graduate student
** Professor, corresponding author
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Abstract

For an endoreversible heat engine operates steadily between two fixed temperatures, Bejan found the engine's best performance can be obtained if the total thermal conductance is evenly divided for hot-end and cold-end heat exchangers. In this study, a heat by-pass model is used to represent the losses due to internal irreversibilities, and the more general formulations are derived for both the optimal area allocation and the maximum thermal efficiency. The results calculated from the present formulations when there is no internal irreversibility(a special case) are consistant with that obtained by Bejan.

Keywords

Heat engineOptimal area allocationEndoreversible cycle
Type
Articles
Information
Journal of Mechanics , Volume 21 , Issue 1 , March 2005 , pp. 1 - 4
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2005

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References

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