パルス管冷凍機の近室温領域への適用化研究(熱工学,内燃機関,動力など)

概要

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In recent years, much interest has been poured for the development of pulse tube refrigerators that have a simple construction and do not use the ozone depleting fluids. But, the application of pulse tube refrigerators has been limited to the deep freeze range and has not been performed in the near-room-temperature region. In the region, the performance of the pulse tube refrigerators is very low because basically the expansion work of pulse tube refrigerators cannot be recovered. In this paper, we suggest a new type of the pulse tube refrigerator that overcomes the conventional fault. It is the series type pulse tube refrigerator that has some pulse tubes connected in series. We attempted to make clear the characteristics of the series type refrigerator by employing a numerical cycle simulation based on the nodal analysis. The results prove that the series type pulse tube refrigerator has a high potential for the near-room-temperature region use.
社団法人日本機械学会の論文
2008-09-25