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Étude numérique des caractéristiques de la condensation de vapeur dans un tube en U coudé pour application dans la conception d’un générateur à haute température.

Numerical study on steam condensation characteristics inside tube with return bends for high temperature generator design application.

Numéro : AB-SI2-1113

Auteurs : LEE S. Y., LEE S. K., KANG Y. T., et al.

Résumé

The thermal driven absorption systems have been extensively paid attention to reduce the peak electric power consumption in summer and to use the environmental refrigerants such as water. The important issue of the absorption systems is the miniaturization of the equipment by enhancing the heat transfer performance. The high temperature generator of the Water/Lithium bromide (H2O/LiBr) absorption chiller occupies a substantial portion of the total equipment volume. To develop a compact high temperature generator of a shell and tube type in LiBr/H2O absorption chiller, the condensation characteristic inside tube with return bends is studied by using the three-dimensional (3D) computational fluid dynamics (CFD). The numerical simulation domain only contains the tube side for the high temperature generator. The required tube volumes to complete the condensation and pressure drop with respect to diameter of return channel and number of tubes are compared.

Détails

  • Titre original : Numerical study on steam condensation characteristics inside tube with return bends for high temperature generator design application.
  • Identifiant de la fiche : 30022723
  • Langues : Anglais
  • Source : International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.
  • Date d'édition : 07/08/2017

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