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Modelling and Simulation in Engineering
Volume 2017, Article ID 8574184, 9 pages
Research Article

Increased Melting Heat Transfer in the Latent Heat Energy Storage from the Tube-and-Shell Model to the Combine-and-Shell Model

1Mechanical Engineering, Brawijaya University, Malang, Indonesia
2Mechanical Engineering, Ronggolawe College of Technology, Cepu, Indonesia

Correspondence should be addressed to Agus Dwi Korawan; di.oc.oohay@nawarok_da

Received 4 April 2017; Revised 8 August 2017; Accepted 10 August 2017; Published 17 September 2017

Academic Editor: Agostino Bruzzone

Copyright © 2017 Agus Dwi Korawan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The melting of paraffin in thermal storage tube-and-shell and combine-and-shell models was conducted with the numerical research aim of decreasing the charge time through changing the shape of the tube into combining form. The results discussed are temperature contour, liquid-solid interface contour, temperature distribution, liquid fraction, and the average Nusselt number. The results show that the charge time in the tube-and-shell model is 2000 s, while the combine-and-shell model is 1200 s, meaning an overall decrease in charge time in the combine-and-shell model by 40% when compared to that of the tube-and-shell model.