Numerical simulation of the hydrogen storage with reaction heat recovery using metal hydride in the totalized hydrogen energy utilization system

Maeda, Tetsuhiko; Nishida, Kozue; Tange, Manabu; Takahashi, Toru; Nakano, Akihiro; Ito, Hiroshi; Hasegawa, Yasuo; Masuda, Mitsuharu; Kawakami, Y.

doi:10.1016/j.ijhydene.2011.06.024

Cited by 33 publications

(13 citation statements)

References 28 publications

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“…The permeability of the metal hydride bed with an average particle diameter equal to 10 -5 is 7.5·10 -13 . This value lies within the range of values that can be found in the literature (from 4.5·10 -15 m 2 [19] to 10 -12 m 2 in [20]). The permeability of the aluminium foam is equal to 10 -7 (from 0.3·10 -7 m 2 to 14.2·10 -7 m 2 in [21]).…”

Section: Mathematical Modelsupporting

confidence: 86%

Numerical study of hydrogen purification using metal hydride reactor with aluminium foam

Минко

Артемов

Yan’kov

2015

Applied Thermal Engineering

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Section: Mathematical Modelsupporting

confidence: 86%

Numerical study of hydrogen purification using metal hydride reactor with aluminium foam

Минко

Артемов

Yan’kov

2015

Applied Thermal Engineering

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“…The recovery rate in the continuous 24 hours cycle experiment results was 46.3% during the absorption process and 44.4% during the desorption process, and that in the simulation results was 50.4% and 44%, respectively, indicating that the simulation results were within the experimental error. These comparison results validate the simulation code [2]. …”

Section: -Hour Cycle Comparison Experiments and Simulationsupporting

confidence: 76%

“…In terms of temperature conditions, we assumed that the reaction heat in the absorption process was cooled with a typical cooling tower, and set the temperature of the circulating water to be less than 32 ºC, based on the temperature of the cooling tower at midsummer peak. On the other hand, the temperature of the circulating water during the hydrogen desorption process was set to 12 ºC to enable air-conditioning [2]- [4]. The performance of the metal hydride tank was numerically evaluated here for THEUS operation aimed at load leveling [2].…”

Section: Purpose Of Theus and Metal Hydride Tankmentioning

confidence: 99%

“…On the other hand, the temperature of the circulating water during the hydrogen desorption process was set to 12 ºC to enable air-conditioning [2]- [4]. The performance of the metal hydride tank was numerically evaluated here for THEUS operation aimed at load leveling [2]. Therefore, the operating conditions were a 24-hour cycle in which the absorption process was set to 9 hours, and the desorption process to 13 hours, with a 1-hour interval.…”

Section: Purpose Of Theus and Metal Hydride Tankmentioning

confidence: 99%

“…The actual 24-hour cycle experiments were carried out continuously for 4 consecutive days [2] [3]. Fig.…”

Section: -Hour Cycle Comparison Experiments and Simulationmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of Numerical Simulation Model of the Metal Hydride Tank for the Totalized Hydrogen Energy Utilization System

Maeda¹,

Nishida²,

Hasegawa³

et al. 2012

Journal of International Council on Electrical Engineering

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-Authors have proposed the Totalized Hydrogen Energy Utilization System(THEUS) for load leveling and stabilizing the grid system. THEUS consists of fuel cells, water electrolyzers, hydrogen storage and their auxiliary machinery. The basic operation for load leveling is as follows: In the nighttime, it produces hydrogen through water electrolysis by using low-cost electric power and stores the hydrogen. In the daytime, it conducts fuel cell generation using the stored hydrogen to meet the demand. Hydrogen storage equipment is the core of THEUS. In this paper, the metal hydride tank was chosen as hydrogen storage. The hydrogen desorption process is endothermic reaction. It is possible to use the cool heat for air conditioning. It is necessary to develop a useful numerical simulation code for not only the operation method but also the optimization of the structure of the tank. We developed the simulation code. The validity of the code has been improved by comparing with experimental results. Concretely, the following points were considered. (1)The thermal capacity of the tank.(2)Heat loss to the outside. (3)The copper plate effect. The simulation results become in good agreement with experimental results. And to achieve hydrogen high flow rate, new design tank performance was investigated.

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Safety Rules and Measures to Be Taken Where Hydrogen Gas Is Stored

Bedir

Kayfeci

Elmas

2015

Progress in Clean Energy, Volume 2

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Numerical simulation of the hydrogen storage with reaction heat recovery using metal hydride in the totalized hydrogen energy utilization system

Cited by 33 publications

References 28 publications

Numerical study of hydrogen purification using metal hydride reactor with aluminium foam

Numerical study of hydrogen purification using metal hydride reactor with aluminium foam

Improvement of Numerical Simulation Model of the Metal Hydride Tank for the Totalized Hydrogen Energy Utilization System

Safety Rules and Measures to Be Taken Where Hydrogen Gas Is Stored

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