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A comparative study of thermal behaviour of a horizontal and vertical shell-and-tube energy storage using phase change materials

Citation

Seddegh, S and Wang, X and Henderson, AD, A comparative study of thermal behaviour of a horizontal and vertical shell-and-tube energy storage using phase change materials, Applied Thermal Engineering, 93 pp. 348-358. ISSN 1359-4311 (2016) [Refereed Article]

Copyright Statement

Copyright 2015 Elsevier Ltd.

DOI: doi:10.1016/j.applthermaleng.2015.09.107

Abstract

In this paper, thermal behaviour in a vertical and horizontal shell-and-tube energy storage system using phase change materials (PCMs) is investigated and compared using a combined conduction and convection heat transfer model. The model is first evaluated using published experimental data available in the literature and then used to study the temperature variation, solid–liquid interface, phase distribution, total melting and solidification time during the charging and discharging processes of PCMs. The simulated results show that during the charging process for the horizontal orientation, convective heat transfer has a strong effect on melting of the upper part of the solid PCM and is less significant during melting of the lower half of the solid PCM. However, in the vertical orientation, convective heat transfer is the same active during the entire charging process. In the discharging process, the thermal behaviour does not show any difference between horizontal and vertical systems. The results indicate that the horizontal orientation has superior thermal performance during the charging and in particular during part-load energy charging. The results also show that increasing the hot heat transfer fluid (HTF) inlet temperature substantially reduces the total charging time for both orientations. However, increasing the flow rate does not greatly affect the charging and discharging processes.

Item Details

Item Type:Refereed Article
Keywords:latent heat energy storage, phase change material, natural convection, melting, solidification
Research Division:Engineering
Research Group:Mechanical Engineering
Research Field:Energy Generation, Conversion and Storage Engineering
Objective Division:Energy
Objective Group:Renewable Energy
Objective Field:Solar-Thermal Energy
Author:Seddegh, S (Mr Saeid Seddegh Kiyaroudi)
Author:Wang, X (Associate Professor Xiaolin Wang)
Author:Henderson, AD (Dr Alan Henderson)
ID Code:105049
Year Published:2016
Web of Science® Times Cited:31
Deposited By:Engineering
Deposited On:2015-12-04
Last Modified:2017-11-06
Downloads:0

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