E202 熱駆動型熱音響スターリングクーラー(OS10 外燃機関・廃熱利用技術),動力エネルギーシステム部門20周年,次の20年への新展開)

抄録

In a heat-driven thermoacoustic Stirling cooler, lowering the hot end temperature necessary for the operation is of great importance. In this work, we increased a number of regenerators to five used in the engine loop of this type of cooler, and succeeded in lowering the temperature ratio significantly. Experimental results suggest that the cooling temperature of -4℃ is achievable with the hot end temperature of 200℃.