Mean temperature difference for countercurrent flow and cocurrent flow in steady continuous heat transfer has been deduced uniformly.
采用统一的方法对定态传热逆流和并流的平均温差进行了推导。
Improve the heat transfer efficiency of plate heat exchanger is to improve the heat transfer coefficient and key logarithmic mean temperature difference.
提高板式换热器传热效率的关键是提高传热系数和对数平均温差。
This article discusses the calculation of heat flux in the evaporator, in order to improve the conventional logarithmic mean temperature difference method.
本文讨论表面式蒸发器管路内热流密度计算，以改进传统的对数平均温差法。
Under the same conditions, when the logarithmic mean temperature difference between upstream maximum downstream, the smallest of the mixed flow pattern between the two asked.
在相同工况下，逆流时对数平均温差最大，顺流时最小，混合流型介于二者之问。
There is little difference between the two mean temperature fields, except that the slope of the isotherms appears to be somewhere greater in the right panel.
这两个平均温度场没有什么差异，除了右图等温线的坡度似乎略为大一些之外。
When the outlet coolant temperature or heat-transfer temperature difference is chosen, the acceptable mean residence time can be calculated by the second limiting condition.
在冷却介质出口温度或传热温差选定的情况下，可以由第二个条件计算满足热稳定性的平均停留时间。
When the outlet coolant temperature or heat-transfer temperature difference is chosen, the acceptable mean residence time can be calculated by the second limiting condition.
在冷却介质出口温度或传热温差选定的情况下，可以由第二个条件计算满足热稳定性的平均停留时间。
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