Closed intercooled regenerator Brayton-cycle with constant-temperature heat-reservoirs
The performance of an irreversible closed intercooled regenerator Brayton-cycle coupled to constant-temperature heat reservoirs is analyzed by using the theory of finite-time thermodynamics (FTT). Analytical formulae for dimensionless power and efficiency are derived. Especially, the intercooling pressure-ratio is optimized for the optimal power and the optimal efficiency, respectively. The effects of component (the intercooler, the regenerator, and the hot- and cold-side heat-exchangers) effectivenesses, the compressor and turbine efficiencies, the heat-reservoir temperature-ratio, and the temperature ratio of the cooling fluid in the intercooler and the cold-side heat reservoir on the optimal power and the corresponding efficiency and corresponding intercooling pressure ratio, as well as the optimal efficiency and the corresponding power and corresponding intercooling pressure-ratio are analyzed by detailed numerical examples.
Year of publication: |
2004
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Authors: | Chen, Lingen ; Wang, Wenhua ; Sun, Fengrui ; Wu, Chih |
Published in: |
Applied Energy. - Elsevier, ISSN 0306-2619. - Vol. 77.2004, 4, p. 429-446
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Publisher: |
Elsevier |
Keywords: | Finite-time thermodynamics Brayton cycle Intercooled Regenerated |
Saved in:
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