Onsager coefficients of a finite-time Carnot cycle

Izumida, Yuki; Okuda, Koji

Physical review E, 2009, 80(2), 021121

Permalink : https://hdl.handle.net/2115/39348

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アクセス権	open access
URI	https://hdl.handle.net/2115/39348
タイトル	Onsager coefficients of a finite-time Carnot cycle
著者	著者名 Izumida, Yuki
著者	著者名 Okuda, Koji
言語	英語
キーワード	Carnot cycle
	heat engines
	thermodynamics
発行日	2009-08
出版者	American Physical Society
収録物名	Physical review E
巻(号)	80(2)
ページ	021121
抄録	We study a finite-time Carnot cycle of a weakly interacting gas which we can regard as a nearly ideal gas in the limit of Th-Tc → 0 where Th and Tc are the temperatures of the hot and cold heat reservoirs, respectively. In this limit, we can assume that the cycle is working in the linear-response regime and can calculate the Onsager coefficients of this cycle analytically using the elementary molecular kinetic theory. We reveal that these Onsager coefficients satisfy the so-called tight-coupling condition and this fact explains why the efficiency at the maximal power ηmax of this cycle can attain the Curzon-Ahlborn efficiency from the viewpoint of the linear-response theory.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2009 The American Physical Society
PISSN	1539-3755
関連情報	PMID 19792091
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevE.80.021121