English Dictionary

Joule's cycle

固有名詞

(thermodynamics) The cycle for the air engine proposed by Joule. In it air is taken by a pump from a cold chamber and compressed adiabatically until its pressure is equal to that of the air in a hot chamber, into which it is then delivered, thereby displacing an equal amount of hot air into the engine cylinder. Here it expands adiabatically to the temperature of the cold chamber into which it is finally exhausted. This cycle, reversed, is used in refrigeration.

日本語の意味

ジュールサイクル：ジュールが提案した空気エンジンのサイクル。冷室からポンプで空気を取り込み、断熱圧縮によって空気の圧力を加熱室の空気の圧力に等しくし、その後加熱室へ供給され、同等の量の熱い空気をエンジンのシリンダーに押し出す。シリンダー内で空気は断熱膨張し、最終的に冷室へ排出される。このサイクルを逆転させることで冷蔵に利用される。

When studying historical thermodynamic machines, I was fascinated by Joule's cycle and its clever use of adiabatic compression and expansion between hot and cold chambers.

歴史的な熱力学装置を学ぶ際、私はジュールが提案した空気エンジンのサイクルと、熱室と冷室の間での断熱圧縮と膨張を巧みに利用する点に魅了されました。

意味（1）

(thermodynamics) The cycle for the air engine proposed by Joule. In it air is taken by a pump from a cold chamber and compressed adiabatically until its pressure is equal to that of the air in a hot chamber, into which it is then delivered, thereby displacing an equal amount of hot air into the engine cylinder. Here it expands adiabatically to the temperature of the cold chamber into which it is finally exhausted. This cycle, reversed, is used in refrigeration.