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RESEARCH PAPERS

Spherical Phase-Change Energy Storage With Constant Temperature Heat Injection

[+] Author and Article Information
A. Kumar

Central Engineering and Design Division, The Tata Iron and Steel Company, Jamshedpur, India

A. Prasad

Mechanical Engineering, Regional Institute of Technology, Jamshedpur, India

S. N. Upadhaya

Applied Mechanics, Regional Institute of Technology, Jamshedpur, India

J. Energy Resour. Technol 109(3), 101-104 (Sep 01, 1987) (4 pages) doi:10.1115/1.3231333 History: Received May 12, 1987; Online October 22, 2009

Abstract

Storage of thermal energy due to latent heat involved during outward radial melting of a phase-change material contained in a spherical shell is solved using variational, integral and quasi-steady methods. At uniform temperature heat is applied to inner surface. These methods provide closed-form solutions in the Stefan number, an independent parameter. The results for total energy storage, the phase-change depth and their rate obtained from these approximate analyses do not vary significantly.

Copyright © 1987 by ASME
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