NDLI: Numerical Modeling of the Frosting Process on a Cold Finned Surface With Variable Fin Spacing

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Zaabalawy, Assem El Diab, Aya Ghoneim, Zakaria
Copyright Year	2014
Abstract	Frost formation can incur damage to agricultural crops, roads, railways, electrical transmission lines, transport of oil and natural gas in cold climates, as well as refrigeration and air-conditioning equipment. Modeling of the frost formation process involves coupled heat and mass transport phenomena which are not only function of time but also of space. To model such complex interactions, a transient two dimensional mathematical model has been developed using a control volume approach, discretizing Navier-Stokes equations over a fixed Cartesian staggered grid coupling the pressure and velocity via the SIMPLE algorithm. To identify the interface between the air and the frost sub-domains, a cut cell approach has been used. The validated numerical model is used to investigate the impact of the heat exchanger configuration on the frost layer distribution. Specifically, a variable fin spacing (converging channel) is compared to the regular configuration (with straight fins) and is shown to have a positive impact on the frost layer distribution.
File Format	PDF
ISBN	9780791849569
DOI	10.1115/IMECE2014-37578
Volume Number	Volume 8B: Heat Transfer and Thermal Engineering
Conference Proceedings	ASME 2014 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2014-11-14
Publisher Place	Montreal, Quebec, Canada
Access Restriction	Subscribed
Subject Keyword	Air conditioning Navier-stokes equations Transport phenomena Computer simulation Roads Fins Heat exchangers Modeling Pressure Electric power transmission Transients (dynamics) Cold climates Railroads Heat Algorithms Damage Refrigeration Natural gas
Content Type	Text
Resource Type	Article

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