THERMAL SCIENCE

International Scientific Journal

NUMERICAL PERFORMANCE STUDY OF PARAFFIN WAX DISPERSED WITH ALUMINA IN A CONCENTRIC PIPE LATENT HEAT STORAGE SYSTEM

ABSTRACT
Latent heat energy storage systems using paraffin wax could have lower heat transfer rates during melting/freezing processes due to its inherent low thermal conductivity. The thermal conductivity of paraffin wax can be enhanced by employing high conductivity materials such as alumina (Al2O3). A numerical analysis has been carried out to study the performance enhancement of paraffin wax with nanoalumina (Al2O3) particles in comparison with simple paraffin wax in a concentric double pipe heat exchanger. Numerical analysis indicates that the charge-discharge rates of thermal energy can be greatly enhanced using paraffin wax with alumina as compared with a simple paraffin wax as PCM.
KEYWORDS
PAPER SUBMITTED: 2011-04-17
PAPER REVISED: 2011-12-21
PAPER ACCEPTED: 2011-12-21
DOI REFERENCE: https://doi.org/10.2298/TSCI110417004A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE 2, PAGES [419 - 430]
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© 2019 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