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

Author(s) : GU H. F., CHEN Q., WANG H. J., et al.

Type of article: Article

Summary

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.

Details

  • Original title: Condensation of a hydrocarbon in the presence of a non-condensable gas: heat and mass transfer.
  • Record ID : 30017186
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 91
  • Publication date: 2015/12/05
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2015.08.092

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