E206 熱音響エンジンの音場調整(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)

概要

論文の詳細を見る
In a double-loop thermoacoustic Stirling cooler, a branch resonator is used to transfer the acoustic power generated in an engine loop to a cooler loop. Through measurements of acoustic admittance, we show that the resonator works not only as a power transfer tube, but also as an admittance adjuster to connect two loops that have different admittances. Based on this observation, we apply the acoustic theory to realize the same function with a branch resonator having different internal radius. Experimental result shows that decreasing the resonator internal radius from 20 mm to 12 mm decreases the resonator length from 1.85 m to 0.81 m without changing the operating frequency of the cooler.
一般社団法人日本機械学会の論文
2010-06-20