THERMAL SCIENCE

International Scientific Journal

Amirhossein Mosaffa

,

Faramarz Talati

,

Marc A. Rosen

,

Hassan Basirat Tabrizi

PHASE CHANGE MATERIAL SOLIDIFICATION IN A FINNED CYLINDRICAL SHELL THERMAL ENERGY STORAGE: AN APPROXIMATE ANALYTICAL APPROACH

ABSTRACT
Results are reported of an investigation of the solidification of a phase change material (PCM) in a cylindrical shell thermal energy storage with radial internal fins. An approximate analytical solution is presented for two cases. In case 1, the inner wall is kept at a constant temperature and, in case 2, a constant heat flux is imposed on the inner wall. In both cases, the outer wall is insulated. The results are compared to those for a numerical approach based on an enthalpy method. The results show that the analytical model satisfactory estimates the solid-liquid interface. In addition, a comparative study is reported of the solidified fraction of encapsulated PCM for different geometric configurations of finned storage having the same volume and surface area of heat transfer.
KEYWORDS
thermal energy storage, PCM, analytical, finned cylindrical shell storage, enthalpy method
PAPER SUBMITTED: 2012-03-26
PAPER REVISED: 2012-09-25
PAPER ACCEPTED: 2012-10-17
DOI REFERENCE: https://doi.org/10.2298/TSCI120326207M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE Issue 2, PAGES [407 - 418]
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Phase change material solidification in a finned cylindrical shell thermal energy storage: An approximate analytical approach

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence