Optimal configuration for a finite high-temperature source heat engine cycle with the complex heat transfer law |
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Authors: | Jun Li LinGen Chen and FengRui Sun |
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Institution: | (1) Postgraduate School, Naval University of Engineering, Wuhan, 430033, China |
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Abstract: | The optimal configuration of a heat engine operating between a finite high-temperature source and an infinite low-temperature
reservoir is derived by using finite time thermodynamics based on a complex heat transfer law, including Newtonian heat transfer
law, linear phenomenological heat transfer law, radiative heat transfer law, Dulong-Petit heat transfer law, generalized convective
heat transfer law and generalized radiative heat transfer law, q ∝ (ΔT
n
). In the engine model the only irreversibility of finite rate heat transfer is considered. The optimal relation between the
power output and efficiency of the heat engine is also derived by using an equivalent temperature of the hot reservoir. The
obtained results include those obtained in recent literature and can provide some theoretical guidance for the designs of
practical engines.
Supported by the Program for New Century Excellent Talents in University of China (Grant No. 20041006) and the Foundation
for the Author of National Excellent Doctoral Dissertation of China (Grant No. 200136) |
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Keywords: | finite time thermodynamics finite heat capacity reservoir heat engine cycle optimal configuration optimal performance heat transfer law |
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