Experimental hydrogen sorption study on a LaNi5-based 5 kg reactor with novel conical fins and water tubes and its numerical scale-up through a modular approach

Chandra, Satyaki; Sharma, Pratibha; Muthukumar, P.; Tatiparti, Sankara Sarma V.

doi:10.1016/j.ijhydene.2022.08.098

Cited by 10 publications

(1 citation statement)

References 58 publications

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“…As one of the common hydrogen storage materials, LaNi 5 hydrides present a relatively large hydrogen storage capacity. Chandra et al [2] experimentally studied the hydrogen absorption characteristics of a 5 kg LaNi 5 reactor with conical fins and heat transfer tubes under various water flow conditions, inlet temperatures, and hydrogen pressure conditions. A higher rate and pressure, and a lower temperature produce faster absorption through a higher driving force.…”

Section: Introductionmentioning

confidence: 99%

Parametric Study on Fin Structure and Injection Tube in Metal Hydride Tank Packed with LaNi5 Alloy for Efficient and Safe Hydrogen Storage

Liu

Zhao

et al. 2023

Sustainability

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Efficient hydrogen storage methods are crucial for the large-scale application of hydrogen energy. This work studied the effects of fin structure and injection tube on the system performance of a hydrogen storage tank packed with LaNi5 alloy. An axisymmetric finite element model of the metal hydride hydrogen storage tank was established. The fin structure and injection tube were added to the hydrogen storage tank, and the effects of the fin location and injection tube on the efficiency and safety of the hydrogen storage tank during hydriding were analyzed. A parametric study on the wall fin structure and injection tube has been carried out to optimize the design of a hydrogen storage tank, and to improve its efficiency and safety. The hydrogen storage capacity of the optimized tank packed with LaNi5 alloy can reach 1.312 wt%, which is 99% of its maximum capacity, at around 650 s. The results show that the fin structure can improve the heat transfer performance of the storage tank, and that the injection tube can enhance the mass transfer of hydrogen in the tank.

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Section: Introductionmentioning

confidence: 99%

Parametric Study on Fin Structure and Injection Tube in Metal Hydride Tank Packed with LaNi5 Alloy for Efficient and Safe Hydrogen Storage

Liu

Zhao

et al. 2023

Sustainability

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Heat Transfer Optimization of a Metal Hydride Tank Targeted to Improve Hydrogen Storage Performance

Lebaal,

Chabane,

Zereg

et al. 2024

Energy Storage

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In this study, the optimization of heat transfer in a metal hydride hydrogen tank to maximize hydrogen storage was investigated. A finite element model of a quarter tank was developed in COMSOL Multiphysics with parameterized geometry. The main objectives were to maximize stored hydrogen mass and minimize tank filling time while maintaining temperature uniformity within the tank. A design of experiments (DOE) approach was used with key geometrical parameters. Compared to the base case, the hydrogen stored mass increased from 0.26 to 0.46 kg, and the tank filling time reduced from over 1100 to 450 s. The optimal design (Design point 15) resulted in an absorbed hydrogen mass of 0.4624 kg, with a charging time of 450 s, showing the most balanced performance in terms of maximizing storage while minimizing filling time and better heat dissipation. This demonstrates the potential of optimizing heat transfer to significantly improve metal hydride hydrogen storage performance. The model can be further improved by exploring different cooling designs and materials.

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Design, development and hydrogen storage performance testing of a tube bundle metal hydride reactor

Jana

Muthukumar

2023

Journal of Energy Storage

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Experimental hydrogen sorption study on a LaNi5-based 5 kg reactor with novel conical fins and water tubes and its numerical scale-up through a modular approach

Cited by 10 publications

References 58 publications

Parametric Study on Fin Structure and Injection Tube in Metal Hydride Tank Packed with LaNi5 Alloy for Efficient and Safe Hydrogen Storage

Parametric Study on Fin Structure and Injection Tube in Metal Hydride Tank Packed with LaNi5 Alloy for Efficient and Safe Hydrogen Storage

Heat Transfer Optimization of a Metal Hydride Tank Targeted to Improve Hydrogen Storage Performance

Design, development and hydrogen storage performance testing of a tube bundle metal hydride reactor

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