Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers
Online ISSN : 2185-789X
Print ISSN : 1344-4905
ISSN-L : 1344-4905
Design Study for a Free-piston Vuilleumier Cycle Heat Pump
Junji MATSUENorimasa HOSHINOYonezou IKUMIHiroyuki SHIRAI
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2000 Volume 17 Issue 3 Pages 361-369

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Abstract
Conceptual design for a free-piston Vuilleumier cycle heat pump machine was proposed. The machine was designed based upon the numerical results of a dynamic analysis method. The method included the effect of self excitation vibration with dissipation caused by the flow friction of an oscillating working gas flow and solid friction of seals. It was found that the design values of reciprocating masses and spring constants proposed in published papers related to this study were suitable for practical use. The fundamental effects of heat exchanger elements on dynamic behaviors of the machine were clarified. It has been pointed out that some improvements were required for thermodynamic analysis of heat exchangers and working spaces.
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© 2000 Japan Society of Refrigerating and Air Conditioning Engineers
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