フリーピストン型ヴィルミエヒートポンプの研究 : 試作機の自励運転特性

概要

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A prototype of a free piston Vuilleumier heat pump (FPVM) was designed and manufactured in order to research the basic FPVM performance characteristics at self-excited vibration. The FPVM has a cooling capacity of 3.2 kW and a cooling COP of 0.6 at self-excited vibration. Dependences of the dynamic motion of the displacers and the FPVM performance on the mean gas pressure, hot gas temperature, and hot and cold water temperatures were investigated experimentally and analyzed using a simple 2nd order isothermal simulation combined with a linear analysis. The performance characteristics of the FPVM when a hot displacer and a cold displacer were and were not connected by a spring were examined and discussed. There was no qualitative difference between the FPVM's. It was found that the simulation results agreed well qualitatively with the experimental results and that the simulation could be used to analyze the FPVM performance characteristics and to design a practical machine.
一般社団法人日本機械学会の論文
1996-07-25