Condensation of a hydrocarbon in the presence of a non-condensable gas: Heat and mass transfer

被引:28
|
作者
Gu, H. F. [1 ]
Chen, Q. [1 ]
Wang, H. J. [1 ]
Zhang, H. Q. [2 ]
机构
[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
[2] Univ Tulsa, McDougall Sch Petr Engn, Tulsa, OK 74104 USA
关键词
Kerosene; Heat and mass transfer; Non-condensable gas; Mixture condensation; DIFFUSION LAYER MODEL; NONCONDENSABLE GAS; STEAM CONDENSATION; VERTICAL TUBE; CONTAINMENT; MIXTURES;
D O I
10.1016/j.applthermaleng.2015.08.092
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper presents experimental study for horizontal tubeside and shellside condensation of kerosene in the presence of a wide range of non-condensable gas. Using the heat and mass transfer analogy model, the heat and mass transfer mechanism of the condensate film and the vapor-gas phase has been analyzed. Convective condensation of hydrocarbon mixtures in the presence of non-condensable gases in shear-controlled flow is strongly dependent on the diffusion of the vapor molecules through the non-condensable gas onto the condensate film. The mass transfer resistance increases as the non-condensable gas concentration increases, and the interfacial temperature decreases as the less volatile components condense. Our experimental results demonstrate that the heat transfer performance is influenced by the non-condensable gas, vapor, condensate Reynolds numbers, Schmidt number and Jacob number. Comparisons of a newly developed heat transfer correlation based on the heat and mass transfer analogy with experimental data show a good agreement. The correlations can be applied to tubeside and shellside condensation of mixtures with non-condensable gases. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:938 / 945
页数:8
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