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Experiments on solid state hydrogen storage device with a finned tube heat exchanger

Singh, Anurag and Maiya, M P and Murthy, Srinivasa S (2017) Experiments on solid state hydrogen storage device with a finned tube heat exchanger. In: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 42 (22). pp. 15226-15235.

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Official URL: https://doi.org/10.1016/j.ijhydene.2017.05.002

Abstract

The absorption and desorption performances of a solid state (metal hydride) hydrogen storage device with a finned tube heat exchanger are experimentally investigated. The heat exchanger design consists of two ``U'' shaped cooling tubes and perforated annular copper fins. Copper flakes are also inserted in between the fins to increase the overall effective thermal conductivity of the metal hydride bed. Experiments are performed on the storage device containing 1 kg of hydriding alloy LaNi5, at various hydrogen supply pressures. Water is used as the heat transfer fluid. The performance of the storage device is investigated for different operating parameters such as hydrogen supply pressure, cooling fluid temperature and heating fluid temperature. The shortest charging time found is 490 s for the absorption capacity of 1.2 wt% at a supply pressure of 15 bar and cooling fluid temperature and velocity of 288 K and 1 m/s respectively. The effect of copper flakes on absorption performance is also investigated and compared with a similar storage device without copper flakes. (C) 2017 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
Department/Centre: Division of Interdisciplinary Research > Interdisciplinary Centre for Energy Research
Depositing User: Id for Latest eprints
Date Deposited: 22 Jul 2017 06:51
Last Modified: 22 Nov 2018 15:04
URI: http://eprints.iisc.ac.in/id/eprint/57466

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