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EXPERIMENTAL STUDY OF SOLIDIFICATION OF PARAFFIN WAX IN SOLAR BASED TRIPLE CONCENTRIC TUBE THERMAL ENERGY STORAGE SYSTEM

ABSTRACT
This paper addresses an experimental investigation of a Solar based Thermal Energy Storage system to meet current energy demand especially for milk industry in Tamilnadu, India. A solar based energy storage system has been designed to study the heat transfer characteristics of paraffin wax where it is filled in the middle tube, with cold heat transfer fluid flowing outer tube, inner tube, and both tubes at a time during solidification process in a horizontal triple concentric heat exchanger. In this study, main concentrations are temperature distributions in the energy storage materials such as paraffin wax during solidification process and total solidification time. And three heat recovery methods were used to solidify paraffin wax from the inside tube, outside tube and both tubes methods to improve the heat transfer between heat transfer fluid and phase change materials(PCM). The experiment has been performed for different heat transfer fluid mass flow rates and different inlet temperatures and predicted results shows that solidification time is reduced.
KEYWORDS
PAPER SUBMITTED: 2016-03-11
PAPER REVISED: 2017-02-07
PAPER ACCEPTED: 2017-02-14
PUBLISHED ONLINE: 2017-03-03
DOI REFERENCE: https://doi.org/10.2298/TSCI160311021R
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE 2, PAGES [973 - 978]
REFERENCES
  1. Birol, B., Ahmet, U., Numerical Evolution of a Triple Latent Heat Thermal Energy Storage, Solar Energy, 92 (2013), June, pp. 196-205
  2. Abduljalil, A. A., et al., Experimental Study of PCM Melting in Triplex Tube Thermal Energy Storage for Liquid Desiccant Air Conditioning, Energy and Buildings, 60 (2013), May, pp. 270-279
  3. Abduljalil, AAlAbidi., et al., Experimental Study of Melting and Solidification of PCM in aA Triplex Tube Heat Exchanger with Fins, Energy and Buildings, 68 (2014), Part A, pp. 33-41
  4. Abduljalil, A. A., et al., Internal and External Fin Heat Transfer Enhancement Technique for Latent Heat Thermal Energy Storage in Triplex Tube Heat Exchangers, Applied Thermal Engineering, 53 (2013), 1, pp. 147-156

© 2018 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, 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