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RESEARCH PAPERS: Papers on Heat and Mass Transfer in Solidification Processing

Freezing Characteristics Along a Horizontal Cooled Tube Immersed in Aqueous Binary Solution With Main Flow

[+] Author and Article Information
M. Yamada, S. Fukusako, M. Tago, A. Horibe

Department of Mechanical Engineering, Hokkaido University, Sapporo, Japan

J. Eng. Mater. Technol 115(1), 54-62 (Jan 01, 1993) (9 pages) doi:10.1115/1.2902157 History: Revised June 01, 1992; Online April 29, 2008

Abstract

An experimental study has been performed to investigate the freezing characteristics of an aqueous binary solution along a horizontal cooled tube. A copper coaxial cooling tube was set horizontally in a flow duct which has cross-sectional dimensions of 120 mm × 200 mm. Ethylene-glycol solution was utilized as a test solution. Observation of frozen layer, measurement of heat-transfer coefficient, and visualization of flow pattern were extensively carried out under a variety of concentration of the solution, initial temperature, cooling temperature, and flow velocity as parameters. It was found that the characteristics of the frozen layer could be well grouped using both the Reynolds number and the cooling temperature ratio, and that the flow field had a considerable effect on the characteristics of the frozen layer. The correlations of the averaged frozen-layer thickness at the steady state were determined.

Copyright © 1993 by The American Society of Mechanical Engineers
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