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TECHNICAL PAPERS: Thermal Systems

Maximum Attainable Performance of Stirling Engines and Refrigerators

[+] Author and Article Information
P. C. T. de Boer

Upson Hall, Cornell University, Ithaca, NY 14853

J. Heat Transfer 125(5), 911-915 (Sep 23, 2003) (5 pages) doi:10.1115/1.1597618 History: Received August 26, 2002; Revised April 01, 2003; Online September 23, 2003
Copyright © 2003 by ASME
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Figures

Grahic Jump Location
Sketch of model used for Stirling engine. The high temperature space is the expansion space, the low temperature one is the compression space.
Grahic Jump Location
Nondimensional power output P and thermal efficiency η/ηCarnot as function of ratio of pressure amplitudes πc. Solid curves are for cos(δ)=1, dotted curves for cos(δ)=0.9.
Grahic Jump Location
Nondimensional power outputs PCarnot and P as function of ratio of pressure amplitudes πc. Solid curves are for cos(δ)=1, dotted curves for cos(δ)=0.9.
Grahic Jump Location
Sketch of model used for Stirling refrigerator
Grahic Jump Location
Nondimensional cooling rate 〈Ḣc〉Th/Tc and coefficient of performance COP/COPCarnot as function of ratio of pressure amplitudes πc. Solid curves are for cos(δ)=1, dotted curves for cos(δ)=0.9.
Grahic Jump Location
Nondimensional power inputs 〈Ḣh〉−〈Ḣc〉 and (Th/Tc−1)〈Ḣc〉 as function of ratio of pressure amplitudes πc. Solid curves are for cos(δ)=1, dotted curves for cos(δ)=0.9.

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