Cyclic behaviors of a novel design of a metal hydride reactor encircled by cascaded phase change materials

Talal Alqahtani; Ahmad Bamasag; Sofiene Mellouli; Faouzi Askri; Patrick E. Phelan

doi:10.1016/j.ijhydene.2020.08.280

Cyclic behaviors of a novel design of a metal hydride reactor encircled by cascaded phase change materials

Talal Alqahtani, Ahmad Bamasag, Sofiene Mellouli, Faouzi Askri, Patrick E. Phelan

Engineering, Ira A. Fulton Schools of (IAFSE)

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

The integration of a phase change material (PCM) with a metal hydride (MH) reactor has received considerable attention recently. In such a system, the exothermic and endothermic processes of the MH reactor can be utilized effectively by enhancing the thermal exchange between the MH reactor and the PCM bed. In this study, a novel design that integrates the MH reactor with cascaded PCM beds is proposed. Magnesium nickel (Mg₂Ni) alloy is used as the hydride reactor. Two different types of PCMs with different melting temperatures and enthalpies are arranged in series. A parametric study is carried out to identify the optimum distribution of the different PCMs. The results indicate that the proposed cascaded MH-PCM sandwich design improves the heat transfer rate which consequently shortens the time duration of the hydrogenation and dehydrogenation processes by 26% and 51%, respectively, compared to an MH-PCM sandwich design that includes only a single PCM.

Original language	English (US)
Pages (from-to)	32285-32297
Number of pages	13
Journal	International Journal of Hydrogen Energy
Volume	45
Issue number	56
DOIs	https://doi.org/10.1016/j.ijhydene.2020.08.280
State	Published - Nov 13 2020

Keywords

Cascaded phase change materials
Hydrogen storage
Metal hydride
Phase change material

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

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title = "Cyclic behaviors of a novel design of a metal hydride reactor encircled by cascaded phase change materials",

abstract = "The integration of a phase change material (PCM) with a metal hydride (MH) reactor has received considerable attention recently. In such a system, the exothermic and endothermic processes of the MH reactor can be utilized effectively by enhancing the thermal exchange between the MH reactor and the PCM bed. In this study, a novel design that integrates the MH reactor with cascaded PCM beds is proposed. Magnesium nickel (Mg2Ni) alloy is used as the hydride reactor. Two different types of PCMs with different melting temperatures and enthalpies are arranged in series. A parametric study is carried out to identify the optimum distribution of the different PCMs. The results indicate that the proposed cascaded MH-PCM sandwich design improves the heat transfer rate which consequently shortens the time duration of the hydrogenation and dehydrogenation processes by 26% and 51%, respectively, compared to an MH-PCM sandwich design that includes only a single PCM.",

keywords = "Cascaded phase change materials, Hydrogen storage, Metal hydride, Phase change material",

author = "Talal Alqahtani and Ahmad Bamasag and Sofiene Mellouli and Faouzi Askri and Phelan, {Patrick E.}",

note = "Funding Information: King Khalid University (KKU) is acknowledged for supporting T. Alqahtani's study at Arizona State University (ASU), USA. Publisher Copyright: {\textcopyright} 2020 Hydrogen Energy Publications LLC",

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doi = "10.1016/j.ijhydene.2020.08.280",

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AU - Alqahtani, Talal

AU - Bamasag, Ahmad

AU - Mellouli, Sofiene

AU - Askri, Faouzi

AU - Phelan, Patrick E.

N1 - Funding Information: King Khalid University (KKU) is acknowledged for supporting T. Alqahtani's study at Arizona State University (ASU), USA. Publisher Copyright: © 2020 Hydrogen Energy Publications LLC

PY - 2020/11/13

Y1 - 2020/11/13

N2 - The integration of a phase change material (PCM) with a metal hydride (MH) reactor has received considerable attention recently. In such a system, the exothermic and endothermic processes of the MH reactor can be utilized effectively by enhancing the thermal exchange between the MH reactor and the PCM bed. In this study, a novel design that integrates the MH reactor with cascaded PCM beds is proposed. Magnesium nickel (Mg2Ni) alloy is used as the hydride reactor. Two different types of PCMs with different melting temperatures and enthalpies are arranged in series. A parametric study is carried out to identify the optimum distribution of the different PCMs. The results indicate that the proposed cascaded MH-PCM sandwich design improves the heat transfer rate which consequently shortens the time duration of the hydrogenation and dehydrogenation processes by 26% and 51%, respectively, compared to an MH-PCM sandwich design that includes only a single PCM.

AB - The integration of a phase change material (PCM) with a metal hydride (MH) reactor has received considerable attention recently. In such a system, the exothermic and endothermic processes of the MH reactor can be utilized effectively by enhancing the thermal exchange between the MH reactor and the PCM bed. In this study, a novel design that integrates the MH reactor with cascaded PCM beds is proposed. Magnesium nickel (Mg2Ni) alloy is used as the hydride reactor. Two different types of PCMs with different melting temperatures and enthalpies are arranged in series. A parametric study is carried out to identify the optimum distribution of the different PCMs. The results indicate that the proposed cascaded MH-PCM sandwich design improves the heat transfer rate which consequently shortens the time duration of the hydrogenation and dehydrogenation processes by 26% and 51%, respectively, compared to an MH-PCM sandwich design that includes only a single PCM.

KW - Cascaded phase change materials

KW - Hydrogen storage

KW - Metal hydride

KW - Phase change material

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Cyclic behaviors of a novel design of a metal hydride reactor encircled by cascaded phase change materials

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Keywords

ASJC Scopus subject areas

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