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Efficiency bound of a solar-driven stirling heat engine system
Authors:Jincan Chen  Zijun Yan  Lixuan Chen  Bjarne Andresen
Abstract:A solar-driven Stirling engine is modelled as a combined system which consists of a solar collector and a Stirling engine. The performance of the system is investigated, based on the linearized heat loss model of the solar collector and the irreverisible cycle model of the Stirling engine affected by finite-rate heat transfer and regenerative losses. The maximum efficiency of the system and the optimal operating temperature of the solar collector are determined. Moreover, it is pointed out that the investigation method in the present paper is valid for other heat loss models of the solar collector as well, and the results obtained are also valid for a solar-driven Ericsson engine system using an ideal gas as its engine work substance. © 1998 John Wiley & Sons, Ltd.
Keywords:efficiency bound  Stirling engine  solar collector  regenerative loss  heat transfer loss  finite-time thermodynamics  optimization
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