Heat flow and efficiency in a microscopic engine
B.-Q. Ai (),
H.-Z. Xie,
D.-H. Wen,
X.-M. Liu and
L.-G. Liu
The European Physical Journal B: Condensed Matter and Complex Systems, 2005, vol. 48, issue 1, 101-106
Abstract:
We study the energetics of a thermal motor driven by temperature differences, which consists of a Brownian particle moving in a sawtooth potential with an external load where the viscous medium is periodically in contact with hot and cold heat reservoir along space coordinate. The motor can work as a heat engine or a refrigerator under different conditions. The heat flow via both potential and kinetic energy is considered. The former is reversible when the engine works quasistatically and the latter is always irreversible. The efficiency of the heat engine can never approach Carnot efficiency. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:spr:eurphb:v:48:y:2005:i:1:p:101-106
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DOI: 10.1140/epjb/e2005-00383-0
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