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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-518-9

5th Thermal and Fluids Engineering Conference (TFEC)
April, 5-8, 2020, New Orleans, LA, USA

EFFECT OF CONTAINER ASPECT RATIO ON THE MELTING PROCESS OF A NANO-ENHANCED PHASE CHANGE MATERIAL IN LATENT HEAT THERMAL ENERGY STORAGE SYSTEMS

Get access (open in a dialog) pages 791-795
DOI: 10.1615/TFEC2020.est.32011

Resumo

In the present study, dispersion of highly conductive nanoparticles is used as a heat transfer enhancement method to improve the charging time in latent heat thermal energy storage systems. Rubitherm 55 is used as a phase change material (PCM) and is enclosed in a rectangular container. The melting process commences with the application of heat at the right side-wall. The effect of the concentration of nanoparticles on the melting time is studied for various aspect ratios of the container. The results indicate that a lower melting time is obtained for a wider container (i.e larger aspect ratio). For all the considered cases, the addition of the nanoparticles decreases the melting time; however, a more pronounced decrease in melting time was observed for the narrower containers.