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Effect of temperature dependent properties on the fin performance under dehumidifying operating conditions

•The finite-element formulation for modeling dehumidifying operating conditions is presented.•The temperature-dependent thermal conductivity has negligible effects over a considered range of temperature.•The temperature-dependent heat transfer coefficient has a considerable effect on both dry and we...

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Published in:International journal of refrigeration 2018-04, Vol.88, p.578-586
Main Authors: Hussein, Mohamed M., Pashah, S., Zubair, Syed M.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c340t-877e0c10847db933a6b58bf29d5b1be004430af5815da899a97f9871035fa2cc3
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container_title International journal of refrigeration
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creator Hussein, Mohamed M.
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description •The finite-element formulation for modeling dehumidifying operating conditions is presented.•The temperature-dependent thermal conductivity has negligible effects over a considered range of temperature.•The temperature-dependent heat transfer coefficient has a considerable effect on both dry and wet fins.•The effect of temperature-dependent properties is the same for the isotropic and orthotropic materials. The analysis for fin thermal performance under dehumidifying conditions is conducted using a numerical approach. Finite-Element method is used to account for the non-linear effects due to temperature dependent parameters and humidity-temperature relationship. The temperature profiles, as well as the overall fin efficiency, are studied. The fin efficiency is found to be highly dependent on the operating conditions and the degree to which the heat transfer coefficient is a function of temperature. It is found that the effect of temperature-dependent thermal conductivity on fin performance is less as compared to heat transfer coefficient over the considered range of operating conditions.
doi_str_mv 10.1016/j.ijrefrig.2018.02.008
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ispartof International journal of refrigeration, 2018-04, Vol.88, p.578-586
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1879-2081
language eng
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source ScienceDirect Freedom Collection
subjects Ailettes humides
Conductivity
Dehumidification
Déshumidification
Efficacité d'ailettes
Fin efficiency
Finite element method
Heat and mass transfer
Heat transfer
Heat transfer coefficients
Humidity
Impact analysis
Méthode d'éléments finis
Propriétés dépendant de la température
Studies
Temperature
Temperature dependence
Temperature dependent properties
Temperature effects
Temperature profiles
Thermal conductivity
Transfert de chaleur et de masse
Wet fins
title Effect of temperature dependent properties on the fin performance under dehumidifying operating conditions
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