Thermoacoustic heat pumping effect in a Gifford-McMahon refrigerator

S. Sunahara, T. Biwa, U. Mizutani

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The heat exchange process between the working helium gas and the regenerator materials in a Gifford-McMahon refrigerator is studied from the viewpoint of thermoacoustic phenomena, by measuring the cooling power as a function of the phase angle between pressure and displacement oscillations of the working gas. It is found that the optimum phase angle maximizing the cooling power dramatically increases when the operating temperature decreases below 20 K. This behavior represents the progress of the irreversible heat exchange process due to the reduction of the thermal diffusivity of helium gas.

本文言語English
ページ(範囲)6334-6336
ページ数3
ジャーナルJournal of Applied Physics
92
10
DOI
出版ステータスPublished - 2002 11 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Thermoacoustic heat pumping effect in a Gifford-McMahon refrigerator」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル