Modeling of the Evaporation and Condensation of Zeotropic Refrigerant Mixtures in Horizontal Annular Flow
Hurlburt, Evan Timothy
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https://hdl.handle.net/2142/83954
Description
Title
Modeling of the Evaporation and Condensation of Zeotropic Refrigerant Mixtures in Horizontal Annular Flow
Author(s)
Hurlburt, Evan Timothy
Issue Date
1997
Doctoral Committee Chair(s)
Newell, Ty A.
Department of Study
Mechanical Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Date of Ingest
2015-09-25T21:12:53Z
Keyword(s)
Engineering, Mechanical
Language
eng
Abstract
The model demonstrates the mechanisms which cause circumferential and axial composition and temperature gradients in the liquid film when zeotropic mixtures undergo evaporation and condensation. Heat transfer in mixtures is shown to be less than the ideal limit due to mass transfer resistance in the vapor. The mass transfer resistance causes bulk temperatures to differ from equilibrium bulk temperatures thus decreasing the temperature difference which drives heat transfer.
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