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Condensation d'un hydrocarbure en présence d'un gaz incondensable : transfert de chaleur et de masse.

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

Auteurs : GU H. F., CHEN Q., WANG H. J., et al.

Type d'article : Article

Résumé

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.

Détails

  • Titre original : Condensation of a hydrocarbon in the presence of a non-condensable gas: heat and mass transfer.
  • Identifiant de la fiche : 30017186
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 91
  • Date d'édition : 05/12/2015
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2015.08.092

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