Numerical solutions for mixed controlled solidification of phase change materials
authors Vitorino, N; Abrantes, JCC; Frade, JR
nationality International
journal INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
author keywords Phase change materials; Heat storage; Mixed control; Numerical method; Moving boundaries
keywords THERMAL-ENERGY STORAGE; STEFAN PROBLEM; 2 DIMENSIONS
abstract Kinetics of solidification of phase change materials (PCM) was analyzed for combined heat conduction in the PCM and container wall, and convection in the cold fluid. Stable and convergent numerical methods were derived after transformation to normalized size scale, and corresponding immobilization of the moving boundary. The accuracy was confirmed by comparing numerical solutions and corresponding analytical solutions for control by heat conduction in solidifying layers. The proposed method was used to assess when solidification is controlled solely by conduction in solidified layer, and to analyze relative roles of conduction through the container and convection in the cold fluid. (C) 2010 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0017-9310
year published 2010
volume 53
issue 23-24
beginning page 5335
ending page 5342
digital object identifier (doi) 10.1016/j.ijheatmasstransfer.2010.07.023
web of science category Thermodynamics; Engineering, Mechanical; Mechanics
subject category Thermodynamics; Engineering; Mechanics
unique article identifier WOS:000282155900032
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journal analysis (jcr 2017):
journal impact factor 3.891
5 year journal impact factor 3.950
category normalized journal impact factor percentile 91.739
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