计算结果表明,接触角在一定范围内,膜状冷凝传热系数随着接触角的增大而增大;
The calculated results for steam filmwise condensation indicate that the heat transfer coefficient increases with the contact angle increasing when the contact angle ranged within a certain degree.
分析了多元平行流冷凝器的换热系数,并应用迭代原理得出多元平行流冷凝器的换热计算方法。
Analyzes the multi - flow condenser's coefficient, and obtains the calculative method of the multi - flow condenser's heat transfer by iteration.
对于所试验的两种强化管,HCFC22的管外冷凝换热系数的强化效果比R407C更明显。
For HCFC22, the enhancement of condensation heat transfer outside two kinds of enhanced tubes versus the plain tube is larger than that for R407C.
对比了不同空气系数下,不同排烟温度时的余热回收温度效率,探讨了利用燃烧过程中生成水的冷凝热及其对污染物的吸收作用。
Discussed taking advance condensation heat of water in waste fume. at the same time, the water can absorbed several pollutants in waste fume.
结果显示,随着水蒸气活度的增加,膜内水分子簇尺寸增大,并在膜的微孔内产生多层吸附甚至毛细管冷凝,导致扩散系数迅速降低。
With the increase of mean cluster size(MCS)at different water activities, multi-layer sorption and capillary condensation occur, which lead to the diminution of diffusion coefficients in P…
同时,由该模型对冷凝段的传热系数进行了预测,并将预测值与实验值进行了对比分析。
The theoretical analysis model predicts the mean condensation heat transfer coefficient and the predicted mean condensation heat transfer coefficient is compared with experimental data as wall.
冷凝式锅炉的热效率提高潜力主要取决于燃料种类、锅炉本体的排烟温度、工艺流体的温度、所需的低品位热能的数量、过量空气系数等。
The potential for efficiency improvement depends mainly on the fuel type fired, the exit flue-gas temperature, the process fluid temperature, the low-level heat required, and the excess air etc.
随着冷凝温度和蒸发温度的升高,二级分凝循环的性能系数提高得更多。
When evaporating temperature and condensing temperature increase, the difference of performance between two-step dephlegmation cycle and one-step dephlegmation cycle is greater.
随着冷凝温度和蒸发温度的升高,二级分凝循环的性能系数提高得更多。
When evaporating temperature and condensing temperature increase, the difference of performance between two-step dephlegmation cycle and one-step dephlegmation cycle is greater.
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