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A general dynamic simulation model for evaporators and condensers in refrigeration. 1. Moving-boundary formulation of two-phase flows with heat exchange.

Author(s) : WILLATZEN M., PETTIT N. B. O. L., PLOUG-SORENSEN L.

Type of article: Article, IJR article

Summary

A mathematical model describing the transient phenomena of two-phase flow heat exchangers is presented. Based on the one-dimensional partial-differential equations representing mass and energy conservation (leaving out momentum equations assuming pressure drops to be negligible) and a tube-wall energy equation, a simpler set of ordinary-differential equations is formulated by integrating separately over the three zones (liquid, two-phase, and vapour) generally present in a heat exchanger. Special attention is given to the study of large transients induced by on/off control of vapour-compression cooling systems.

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Pages: 398-403

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Details

  • Original title: A general dynamic simulation model for evaporators and condensers in refrigeration. 1. Moving-boundary formulation of two-phase flows with heat exchange.
  • Record ID : 1999-0811
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 21 - n. 5
  • Publication date: 1998/08

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