C02 パルス管冷凍機性能に及ぼす蓄冷器出入口形状の影響(パルス管冷凍機,熱音響機器及び関連要素と応用システム(1))

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  • C02 Effect of Regenerator Entrance Shape on Performance of Pulse Tube Cryocooler
  • パルス管冷凍機性能に及ぼす蓄冷器出入口形状の影響
  • パルスカン レイトウキ セイノウ ニ オヨボス チクレイキ デイリグチ ケイジョウ ノ エイキョウ

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Pulse tube cryocoolers are more attractive than other small cryocoolers because they have no moving parts in the expander and thus have higher reliability. Stirling type pulse tube cryocooler need further improvement, on especially, regenerator. The working gas flow in the regenerator becomes a flow field with non-uniform velocity distribution accompanying the expansion and contraction flow. They cause the excessice pressure loss and reheat loss. We examined the effect of the regenerator entrance shape on the performance of pulse tube cryocooler experimentally. The effect of after-cooler end was bigger than that of cold-head end.

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