THERMAL SCIENCE

International Scientific Journal

Amirtham Valan Arasu

,

Agus P. Sasmito

,

Arun S. Mujumdar

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
latent heat storage system, phase change material, paraffin wax, paraffin wax with Al2O3, concentric pipe heat exchanger, melting-freezing cycle
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 Issue 2, PAGES [419 - 430]
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Numerical performance study of paraffin wax dispersed with alumina in a concentric pipe latent heat storage system

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