Abstract
Metal hydride pump (MHP) is one of the unconventional pumping systems which converts thermal energy into mechanical energy. This pump operates in an autonomous mode without the consumption of electric power. So, it is used to solve problems of availability of electricity or fossil energies in certain freestanding regions.
In this paper, a mathematical model that describes a dynamic behavior of a MHP is carried out with Mg2Ni alloy using an unsteady model (the time-space evolution of temperature and hydrogen concentration within the reactor is taken into account). Using this model, a computer code has been developed and used to predict the time evolution of the specific water discharge and the effect of different operating parameters (heating temperature, desorption gear ratio, surfaces of hydrogen, and pumping pistons) on the performance of the MHP. Simulation results show that depending on operating conditions, it is possible to pump as much as 890 L of water at a desorption temperature of 673 K using 1 kg of Mg2Ni.
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In memory of our Professor Dr. Sassi BEN NASRALLAH
This research work was initiated at the LEST laboratory of ENIM (University of Monastir, Tunisia) by our Professor Sassi BEN NASRALLAH, co-author of this current paper, who left us suddenly on June 27th, 2017 after the final submission of this paper.
We would like firstly to pay a very great tribute to him. Professor Sassi BEN NASRALLAH was an excellent teacher and researcher, very serious, scientifically very curious and very human. With him, we lost more than just a Professor, but a very dear father.
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Amel, M., Hatem, B.M., Faouzi, A., Sassi, B.N. (2018). Dynamic Study of a Metal Hydride Pump. In: Aloui, F., Dincer, I. (eds) Exergy for A Better Environment and Improved Sustainability 1. Green Energy and Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-62572-0_1
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DOI: https://doi.org/10.1007/978-3-319-62572-0_1
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