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Experimental Investigation of a Packed-Bed Latent Heat Thermal Storage System With Encapsulated Phase Change Material

[+] Author Affiliations
Tanvir E. Alam, Jaspreet Dhau, D. Y. Goswami, M. M. Rahman, Elias Stefankos

University of South Florida, Tampa, FL

Paper No. IMECE2014-38307, pp. V06BT07A050; 6 pages
doi:10.1115/IMECE2014-38307
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 6B: Energy
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4952-1
  • Copyright © 2014 by ASME

abstract

An experimental study on a laboratory scale prototype packed-bed latent heat thermal energy storage (TES) system is presented. Spherical capsules of sodium nitrate melting point of 306°C were used as the PCM and air was used as the heat transfer fluid (HTF). The storage system was operated between 286°C to 326°C and the volumetric flow rate of the HTF was varied from 110 m3/hr to 151 m3/hr. Temperature distribution along the bed and inside the capsules was monitored continuously during charging and discharging of the system. The effect of mass flow rate of the HTF on the charging and discharging time and on the pressure drop across the bed was also evaluated.

Copyright © 2014 by ASME

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