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Title: Pool boiling on modified surfaces using R-123
Authors: Ahmad, SW
Lewis, JS
McGlen, RJ
Karayiannis, TG
Keywords: R-123;Pool boiling
Issue Date: 2014
Citation: Heat Transfer Engineering, 2014, 35 (16-17), pp. 1491 - 1503
Abstract: Saturated pool boiling of R-123 was investigated for five horizontal copper surfaces modified by different treatments, namely, an emery-polished surface, a fine sandblasted surface, a rough sandblasted surface, an electron beam-enhanced surface, and a sintered surface. Each 40-mm-diameter heating surface formed the upper face of an oxygen-free copper block, electrically heated by embedded cartridge heaters. The experiments were performed from the natural convection regime through nucleate boiling up to the critical heat flux, with both increasing and decreasing heat flux, at 1.01 bar, and additionally at 2 bar and 4 bar for the emery-polished surface. Significant enhancement of heat transfer with increasing surface modification was demonstrated, particularly for the electron beam-enhanced and sintered surfaces. The emery-polished and sandblasted surface results are compared with nucleate boiling correlations and other published data. © 2014 Syed W. Ahmad, John S. Lewis, Ryan J. McGlen, and Tassos G. Karayiannis Published with license by Taylor & Francis.
Description: This article has been made available through the Brunel Open Access Publishing Fund.
ISSN: 0145-7632
Appears in Collections:Brunel OA Publishing Fund
Dept of Mechanical Aerospace and Civil Engineering Research Papers

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