A novel multilayer fin structure for heat transfer enhancement in hydride-based hydrogen storage reactor

Zhang, Shiwei; Yang, Fusheng; Zhou, Lu; Zhang, Yang; Wu, Zhen; Zhang, Zaoxiao; Wang, Yuqi

doi:10.1002/er.4115

Cited by 35 publications

(14 citation statements)

References 44 publications

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“…Subsequently, Kou et al presented a thin double annulus MHB, suggesting that the presented reactor could effectively enhance the hydrogen storage performance. Zhang et al proposed a distinctive reactor structure for improving the heat exchange.…”

Section: Introductionmentioning

confidence: 99%

A three‐dimensional heat transfer model for thermal performance evaluation of ZrCo‐based hydride bed with embedded circular‐shaped cooling tubes

et al. 2019

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Summary Nowadays, metal hydrides are generally deemed as one of the most potential materials that are in favor of compact hydrogen storage for industrial applications. This work was committed to evaluate the thermal performance of a circular‐shaped‐tube thin double‐layered hydrogen storage reactor using a three‐dimensional model. Finite element simulations were conducted to systematically study the influences of structural geometries, cooling patterns, and material thermophysical properties on the heat diffusion behavior under the framework of convection heat transfer. The results indicate that the proposed model effectively characterizes temperature evolutions during hydrogen absorption process. Moreover, a statistical analysis was performed to reveal the sensitivity sequence of these factors on the total thermal performance, suggesting that decreasing the hydride layer thickness, increasing the number of U‐shaped cooling tubes, accelerating the cooling fluid flow rate, and enhancing the thermal conductivity are more beneficial to the thermal performance improvement. Detailed analysis confirms the possibility of developing the present hydrogen storage tank utilizing metal hydrides for engineering practice.

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Section: Introductionmentioning

confidence: 99%

A three‐dimensional heat transfer model for thermal performance evaluation of ZrCo‐based hydride bed with embedded circular‐shaped cooling tubes

et al. 2019

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“…Garrison et al optimized the internal heat exchangers for enhancing the hydrogen storage tanks utilizing metal hydrides. Dhaou et al and Zhang et al used the fin and finned spiral heat exchanger to enhance the H 2 storage, respectively. Besides, the adsorption tank is usually equipped with a phase-change material (PCM) jacket because the PCM has a high energy storage capacity and a negligible temperature variation during the operation process. , The PCM can adsorb the accumulated heat released by gas adsorption in MOFs and then release heat during gas desorption in MOF materials.…”

Section: Introductionmentioning

confidence: 99%

Thermal Management for Hydrogen Charging and Discharging in a Screened Metal–Organic Framework Particle Tank

Wang

Yin

et al. 2021

ACS Appl. Mater. Interfaces

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Thermal management of H2 gas storage in a tank is crucial for determining the H2 gas deliverable capacity. In this study, a strategy for the design of an excellent comprehensive performance fuel storage tank from the screening of microscopic materials to the design of macroscopic particle adsorption tank performance is proposed. The best metal–organic framework (MOF) for H2 deliverable capacity in a computation-ready experimental MOF database is first screened using a grand canonical Monte Carlo (GCMC) method. An upscale model that combines the finite volume method with GCMC is then established to investigate the H2 charging and discharging processes in a screened best MOF-filled adsorption particle tank that is integrated with a phase-change material (PCM) jacket. The process of the heat and mass transfer in the screened best MOF particle adsorption tank with and without the PCM jacket-inserted metal foam is studied. The results show that the prescreened XAWVUN has the highest gravimetric and considerable volumetric deliverable capacity among 503 MOFs, which can reach up to 23.1 mol·kg–1 and 20.8 kg·m–3 at 298 K and pressures between 35 000 kPa (adsorption pressure) and 160 kPa (desorption pressure), respectively. The H2 deliverable capacity can be maximized by 3.2 and 12.1% for PCM jackets inserted with metal foam in the H2 charging and discharging processes when it is compared with the case without the PCM jacket, respectively. The above study will facilitate the development of new equipment for hydrogen storage.

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“…It is also reported that iron carbide was detected during milling, which act as a catalyst and increased hydrogen storage capacity. In another study, 10 a new multi‐layer fin geometry design is proposed and analyzed to study the heat transfer behavior of MH reactor (filled with LaNi 5 ) during hydrogenation and dehydrogenation processes. Tubular fins are introduced radially in the reaction chamber with a cooling water circulation arrangement at the center of the cylinder (reactor).…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of metal hydride reactor embedded with internal copper fins and external water cooling

Gupta

Sharma

2020

Int J Energy Res

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Summary Hydrogen is considered as a viable alternative fuel source for many domains. The main challenge in hydrogen technology is its storage. The most efficient form of storing hydrogen by volume is to adopt solid‐state storage. This is achieved by gas‐solid interaction using metal hydrides (MH). But, to achieve the full storing potential of MH, the heat management of the reactor is the critical factor. MHs having inferior thermal conductivity prove a challenge and thus, several kinds of research have gone into developing efficient MH reactors with features trying to enhance the heat transfer rate. In the view of this, in the present work, an MH reactor is designed and numerically (finite volume method) analyzed its heat transfer characteristics during hydrogenation and dehydrogenation of La0.9Ce0.1Ni5 at 293 K. Besides, to achieve improved heat transfer rates, new internal copper fins, and external water jackets are provided. The objective of the present work is to achieve high heat transfer rates with minimum reduction in MH mass within the reactor. Also, a parametric study is carried out to identify the optimized fin design by varying number fins, fin height, and fin thickness, which results in the optimum fin structure of 12 numbers, 12 mm, and 2 mm, respectively. The CFD simulation of MH reactor with and without fins results in improved heat transfer rates and reaction kinetics with internal copper fins. The maximum temperature rise during absorption is reduced by 22.3 K, and during desorption, the drop in bed temperature is reduced by 6.8 K, using optimized copper fins. The obtained results are compared with previous work and observed that the implementation of internal copper fins with external water cooling provides better heat transfer. The proposed reactor + fin arrangement can be efficiently used for the development of MH based thermodynamic devices.

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A novel multilayer fin structure for heat transfer enhancement in hydride-based hydrogen storage reactor

Cited by 35 publications

References 44 publications

A three‐dimensional heat transfer model for thermal performance evaluation of ZrCo‐based hydride bed with embedded circular‐shaped cooling tubes

A three‐dimensional heat transfer model for thermal performance evaluation of ZrCo‐based hydride bed with embedded circular‐shaped cooling tubes

Thermal Management for Hydrogen Charging and Discharging in a Screened Metal–Organic Framework Particle Tank

Design and analysis of metal hydride reactor embedded with internal copper fins and external water cooling

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