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ISSN Online: 2688-7231

ISBN Online: 978-1-56700-524-0

Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India
December, 17-20, 2021, IIT Madras, Chennai, India

Numerical Simulation of Hydrogen Transport in Metal Hydride Based Coupled Beds

Get access DOI: 10.1615/IHMTC-2021.3650
pages 2413-2419


Metal hydride based sorption heat pump is witnessing an increased acceptance due to its environment friendliness and energy efficiency. These systems provide a wide operating temperature range and use low grade thermal energy to produce high quality thermal energy and cooling outputs. Further, these systems contain no moving parts, have a compact structure and offer noise free operation. Heat transfer effectiveness and kinetics are the major challenges to be addressed in these devices. Even though several studies were reported on the thermal performance of metal hydride based reaction beds, only a few deals with the hydrogen transport during their operation. In the present study, a transient heat and mass transfer model for the coupled beds with LaNi5 - LaNi4.7Al0.3 alloy pair has been developed. The numerical simulations were carried out using COMSOL Multiphysics® commercial code. The influence of refrigeration and regeneration temperatures on the hydrogen transport between the two beds and its influence on the sorption performance has been studied.
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