Constructal design of latent thermal energy storage with vertical spiral heaters


Journal Article

© 2014 Elsevier Ltd. All rights reserved. This paper reports a numerical and analytical study of time dependent storage of energy by melting a phase change material in a cylindrical tank. In the first part of the study the heater was a vertical spiral tube positioned coaxially with the tank. In the second part, the heater consisted of two coaxial spirals positioned on the same axis as the cylinder. In accord with the philosophy of constructal design, the heat and fluid flow configuration was endowed with degrees of freedom in order to morph toward better overall performance for a fixed amount of heating material. The paper documents the effect of the geometrical features such as helix diameter and pitch on the overall performance.

Full Text

Duke Authors

Cited Authors

  • Lorente, S; Bejan, A; Niu, JL

Published Date

  • January 1, 2015

Published In

Volume / Issue

  • 81 /

Start / End Page

  • 283 - 288

International Standard Serial Number (ISSN)

  • 0017-9310

Digital Object Identifier (DOI)

  • 10.1016/j.ijheatmasstransfer.2014.09.077

Citation Source

  • Scopus