An Analytical and Empirical Study of Frost Accumulation Effects on Louvered -Fin, Microchannel Heat Exchangers
Xia, Yanping
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https://hdl.handle.net/2142/83867
Description
Title
An Analytical and Empirical Study of Frost Accumulation Effects on Louvered -Fin, Microchannel Heat Exchangers
Author(s)
Xia, Yanping
Issue Date
2006
Doctoral Committee Chair(s)
Jacobi, Anthony M.
Department of Study
Mechanical Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Mechanical
Language
eng
Abstract
A numerical model is developed to predict the time-varying performance of folded-louvered-fin, microchannel heat exchangers. The model utilizes the correlations developed from the experimental data and incorporates a sub-model for frost properties. The model successfully predicts the heat transfer performance of the heat exchangers studied, but its ability to predict the pressure-drop behavior needs further improvement. The model can be used to evaluate geometry effects on the frosting behavior of the louvered-fin, microchannel heat exchangers, and can be easily generalized to other applications with simultaneous heat and mass transfer.
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