Group Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Title: P2.33 - Frosting of Humid Air-flow in a Fin Bundle
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Permanent Link: http://ufdc.ufl.edu/UF00102023/00487
 Material Information
Title: P2.33 - Frosting of Humid Air-flow in a Fin Bundle Multiphase Flows with Heat and Mass Transfer
Series Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Physical Description: Conference Papers
Creator: Kim, D.H.
Koyama, S.
Kuwahara, K.
Park, B.D.
Kwon, J.T.
Publisher: International Conference on Multiphase Flow (ICMF)
Publication Date: June 4, 2010
 Subjects
Subject: frosting
humid air-flow
heat transfer
mass transfer
 Notes
Abstract: This paper presents the frosting characteristics of humid air-flow under frosting conditions. A slit fin bundle was designed and constructed for the simulation of fins of the heat exchanger. The effects of experimental parameters, such as cooling block temperature, air humidity and air velocity, on the total frost mass and pressure drop were experimentally investigated. The frost mass was affected remarkably by the cooling block temperature and air humidity, however, the effect of air velocity on it was not so significant compared with the cooling block temperature and air humidity. The pressure drop was affected a lot by all experimental parameters in this study. An approximation equation for the fin temperature distribution was developed as an exponential equation on the basis of the measured data. Local heat flux distribution of each fin was calculated by using the developed approximation equation for the fin temperature profile and the energy conservation equation for the fin. The frost thickness distribution on each fin was predicted from the local heat flux of each fin and the mass conservation equation on the frost surface and inside the frost layer. In the upper-stream side, the frost thickness of the first fin was relatively thicker than those of the neighboring fins due to the leading edge effect. The frost thickness of the down-stream side was relatively thicker than that of the upper-stream side.
General Note: The International Conference on Multiphase Flow (ICMF) first was held in Tsukuba, Japan in 1991 and the second ICMF took place in Kyoto, Japan in 1995. During this conference, it was decided to establish an International Governing Board which oversees the major aspects of the conference and makes decisions about future conference locations. Due to the great importance of the field, it was furthermore decided to hold the conference every three years successively in Asia including Australia, Europe including Africa, Russia and the Near East and America. Hence, ICMF 1998 was held in Lyon, France, ICMF 2001 in New Orleans, USA, ICMF 2004 in Yokohama, Japan, and ICMF 2007 in Leipzig, Germany. ICMF-2010 is devoted to all aspects of Multiphase Flow. Researchers from all over the world gathered in order to introduce their recent advances in the field and thereby promote the exchange of new ideas, results and techniques. The conference is a key event in Multiphase Flow and supports the advancement of science in this very important field. The major research topics relevant for the conference are as follows: Bio-Fluid Dynamics; Boiling; Bubbly Flows; Cavitation; Colloidal and Suspension Dynamics; Collision, Agglomeration and Breakup; Computational Techniques for Multiphase Flows; Droplet Flows; Environmental and Geophysical Flows; Experimental Methods for Multiphase Flows; Fluidized and Circulating Fluidized Beds; Fluid Structure Interactions; Granular Media; Industrial Applications; Instabilities; Interfacial Flows; Micro and Nano-Scale Multiphase Flows; Microgravity in Two-Phase Flow; Multiphase Flows with Heat and Mass Transfer; Non-Newtonian Multiphase Flows; Particle-Laden Flows; Particle, Bubble and Drop Dynamics; Reactive Multiphase Flows
 Record Information
Bibliographic ID: UF00102023
Volume ID: VID00487
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: P233-Kim-ICMF2010.pdf

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