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引起導(dǎo)熱油散熱器的傳熱溫差的因素

發(fā)布時間:2022-06-06  點擊次數(shù):3790 次
       傳熱溫差△T指的是導(dǎo)熱油散熱器中熱流體和冷流體之間的溫差,即△T=T熱流體-T冷流體=T1-T2。此后,用T1代表熱流體溫度,用T2代表冷流體溫度。
       T1,T2流程是變化的,并不是一個常數(shù),因而傳熱公式中的△T指的是平均傳熱溫差。
       在導(dǎo)熱油散熱器設(shè)計中,總是希望傳熱溫差越大越好。因為根據(jù)其傳熱公式,在相同的傳熱量Q及傳熱系數(shù)K的情況下,△T越大則需要的傳熱面積A即越小。導(dǎo)熱油散熱器的金屬耗量及1次成本即越小,使它的經(jīng)濟性和緊湊性得以上升。
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導(dǎo)熱油散熱器

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