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Development of a design tool for display case evaporators.

Author(s) : CHANDRASEKHARAN R., VERMA P., BULLARD C. W.

Type of article: Article, IJR article

Summary

A model for simulating a fin-and-tube display case evaporator has been developed to serve as a design tool for improving performance in frosting conditions. It is capable of simulating cross-counterflow evaporators with multiple modules having completely different geometries. Quasi-steady heat and mass transfer calculations provide local values of all relevant variables, including heat and mass transfer coefficients, air and refrigerant-side pressure drops and fin and tube frost thicknesses. A multi-lump method enables the model to simulate both tube and fin frost thicknesses and surface temperatures. The results presented in this paper reflect interactions with the display case and its air curtains and predict local and overall effects of frost accumulation, to facilitate optimization of the larger display case system.

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Pages: 823-832

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Details

  • Original title: Development of a design tool for display case evaporators.
  • Record ID : 2006-1793
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 5
  • Publication date: 2006/08

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