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热机的效率介绍
更新时间: 2021-04-07 14:53:43  

1、热机效率是指热机工作部分中转变为机械功的热量和工质从发热器得到的热量的比。如果用ηt表示,则有ηt=W/Q1=(Q1-Q2)/Q1=1-Q2/Q1。

2、从式中很明显地看出Q1越大,Q2越小,热效率越高,这是热机效率中的主要部分,它表明了热机中热量的利用程度。

关键词: 热机 效率 介绍

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