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Effects of heat exchanger design on the performance of a solid state hydrogen storage device

Singh, Anurag and Maiya, MP and Murthy, Srinivasa S (2015) Effects of heat exchanger design on the performance of a solid state hydrogen storage device. In: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 40 (31). pp. 9733-9746.

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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2015.06.015


Heat exchanger design plays a significant role in the performance of solid state hydrogen storage device. In the present study, a cylindrical hydrogen storage device with an embedded annular heat exchanger tube with radial circular copper fins, is considered. A 3-D mathematical model of the storage device is developed to investigate the sorption performance of metal hydride (MH). A prototype of the device is fabricated for 1 kg of MH alloy, LaNi5, and tested at constant supply pressure of hydrogen, validating the simulation results. Absorption characteristics of storage device have been examined by varying different operating parameters such as hydrogen supply pressure and cooling fluid temperature and velocity. Absorption process is completed in 18 min when these parameters are 15 bar, 298 K and 1 m/s respectively. A study of geometric parameters of copper fins (such as perforation, number and thickness of fin) has been carried out to investigate their effects on absorption process. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Keywords: Heat exchanger; Metal hydride; Hydrogen storage; Heat and mass transfer; Copper fins
Department/Centre: Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research
Date Deposited: 26 Aug 2015 05:24
Last Modified: 22 Oct 2018 11:35
URI: http://eprints.iisc.ac.in/id/eprint/52232

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