熱對(duì)流量是指流體的宏觀運(yùn)動(dòng)而引起的流體各部分之間發(fā)生相對(duì)位移,冷熱流體相互摻混所導(dǎo)致的熱量傳遞過(guò)程。 其中,h為對(duì)流傳熱系數(shù),W/(m2·℃);A為傳熱面積,m2;T為熱流體溫度,℃;TW為壁面溫度,℃;Φ為對(duì)流傳熱速率(熱流量),W;根據(jù)公式Φ=hA(T-TW)進(jìn)行計(jì)算 |
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