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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/1456

Title: Performance analysis and optimum criteria of an irreversible Braysson heat engine
Authors: Zhou, Yinghui
Tyagi, S K
Chen, Jincan
Keywords: Braysson heat engine
Multi-irreversibilities
Specific power output
Thermal efficiency
Optimally operating region
Optimum criterion
Issue Date: 2004
Citation: International Journal of Thermal Sciences, 43(11), 1101-1106
Abstract: An irreversible cycle model of a Braysson heat engine operating between two heat reservoirs is used to investigate the performance of the cycle affected by the finite-rate heat transfer between the working fluid and the heat reservoirs, heat leak loss between the heat reservoirs and irreversibility inside the cycle. The specific power output is maximized with respect to the cycle temperatures along with the isobaric temperature ratio. The specific power output is found to be a decreasing function of the internal irreversibility parameter and isobaric temperature ratio while there exist the optimal values of the state point temperatures at which the specific power output attains its maximum value for a typical set of operating parameters. Moreover, the maximum specific power output and other cycle parameters are calculated for different sets of operating conditions. The optimally operating regions of the important parameters in the cycle are determined. The results obtained here may provide some useful criteria for the optimal design and performance improvement of a realistic Braysson heat engine.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/1456
Appears in Collections:Energy Studies [CES]

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