E204 大型熱音響冷却システムの実用化に向けた検討 : 管の断面積が熱から音へのエネルギー変換に与える影響(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

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Experimental investigation of the inner diameter in the thermoacoustic cooling system was carried out to confirm the effect for energy conversion efficiency. We carried out an experiment by using the thermoacoustic cooling system with 3 type inner diameters (24 mm, 42 mm, 100 mm). As results, a sound intensity and a phase difference between sound pressure and particle velocity was varied. In addition, it was confirmed that energy conversion efficiency in it changed with the variety of inner diameter. Energy conversion efficiency in it with inner diameter 100 mm was best of all. A factor of improvement of energy conversion efficiency was change of phase difference between the sound pressure and the particle velocity.
一般社団法人日本機械学会の論文
2010-06-20