Thermodynamic analysis and assessment of a novel integrated geothermal energy-based system for hydrogen production and storage

Yüksel, Yunus Emre; Öztürk, Murat; Dinçer, İbrahim

doi:10.1016/j.ijhydene.2017.08.137

Cited by 74 publications

(14 citation statements)

References 12 publications

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“…Yuksel et al 14 have studied on a novel integrated MGS which is driven by geothermal energy. The system is designed to supply power, hydrogen, oxygen, cooling, and hot domestic water.…”

Section: Figure 10mentioning

confidence: 99%

“…3,4 Additionally, batteries cannot be considered as an applicable option on the condition of present technologies due to their actual restricted capacity. [14][15][16] The usefulness of hydrogen production technologies relies primarily on innovations which exploit them more resourcefully on the condition of reducing adverse environmental impacts. [5][6][7] It is possible to store hydrogen and utilize it once it is generated.…”

Section: Introductionmentioning

confidence: 99%

“…12,13 In this way, plenty of endeavors have focused on scientific research, technological development, and employment of modernization in hydrogen production. [14][15][16] The usefulness of hydrogen production technologies relies primarily on innovations which exploit them more resourcefully on the condition of reducing adverse environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

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Geothermal energy use in hydrogen production: A review

et al. 2019

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Summary The major logics resulting in hydrogen production can be mentioned as fossil fuel depletion and climate change. In this way, hydrogen is produced with the help of numerous processes based on traditional and alternative energy resources like coal, natural gas, wind, solar, biomass, and geothermal energy. Over the past decade, the attention of research institutions and industry has been drawn to hydrogen, inspired by developments in renewable energies. Hydrogen production can be considered as an exceptional choice to make complete utilization of the renewable energy. Among diverse technologies, hydrogen production based on geothermal energy offers great promise. In this paper, initially a concise summary of present and advancing hydrogen production technologies is presented, and secondarily a comprehensive review of research associated with hydrogen production based on geothermal energy is provided. Thirdly, the process descriptions of geothermal‐assisted hydrogen production coupled with its technical, economic, and environmental aspects are addressed. Finally, comparative assessments of costs and environmental aspects related to hydrogen production based on different energy sources have been performed. In accordance with the results, the geothermal‐assisted hydrogen production cost based on electrolysis is competitively lower than other sources like wind, solar thermal coupled with natural gas, solar PV, and grid. Also, the same behavior can be seen for geothermal‐assisted hydrogen production cost based on thermochemical process.

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“…Yuksel et al 14 have studied on a novel integrated MGS which is driven by geothermal energy. The system is designed to supply power, hydrogen, oxygen, cooling, and hot domestic water.…”

Section: Figure 10mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geothermal energy use in hydrogen production: A review

et al. 2019

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“…20 The current technologies for hydrogen storage are high-pressure gas storage, liquid storage, and solid-state storage accompanied by the formation of metal hydrides. 21 Amongst those technologies, the solid-state hydrogen storage presents the less disadvantages as compared with the hydrogen storage technology as compressed gas and liquid hydrogen, 22 as hydrogen can be effectively store at moderate pressure and temperature conditions. 23,24 The solid-state hydrogen storage is a complex process, as it involves several physical processes, such as diffusion, chemical bonding, and heat transfer.…”

Section: Introductionmentioning

confidence: 99%

“…15 The main reason is that FC systems have an advantage over conventional CHP systems in terms of lower heat to power ratios. 21 Amongst those technologies, the solid-state hydrogen storage presents the less disadvantages as compared with the hydrogen storage technology as compressed gas and liquid hydrogen, 22 as hydrogen can be effectively store at moderate pressure and temperature conditions. 20 The current technologies for hydrogen storage are high-pressure gas storage, liquid storage, and solid-state storage accompanied by the formation of metal hydrides.…”

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confidence: 99%

Study on the hydrogenation of an Mm‐based AB ₅ ‐intermetallic for sustainable building applications

Gkanas

2019

Int J Energy Res

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Summary In the present study, a numerical approach regarding the thermal management of an Mm‐based AB5‐intermetallic (MmNi4.6Al0.4) for the hydrogenation process is introduced and analysed. Several heat management scenarios are studied. The numerical model was supported and validated with experimental data in terms of hydrogenation capacity and temperature distribution. The numerical analysis is based on the introduction of the energy, mass, and momentum conservation equations to numerically describe the hydrogenation reaction. The main aim of the present study is the numerical description of the heat management when 200 g of hydrogen are stored (13 kg of the hydride). The heat management cases consider the usage of cooling tubes in combination with high thermal conductivity fins. In general, various parameters affect the efficiency of the heat management. The parameters considered are the fin thickness, the fin number—which is directly connected to the metal hydride thickness convective heat transfer coefficient. A nondimensional parameter (nondimensional conductance [NDC]) specially modified to describe the role of the fins in addition to the cooling tubes is introduced to evaluate the heat management. The target of the study was to reduce the hydrogenation time of almost 13 kg of MmNi4.6Al0.4, and from the parametric study, it has been found that the more efficient conditions are fin thickness between 5 and 8 mm and the convective heat transfer coefficient of 2000 W/m2 K.

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Geothermal Energy‐Driven Hydrogen Production Systems

Ghosh¹,

Varma²

2023

Materials for Hydrogen Production, Conversion, and Storage

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Thermodynamic analysis and assessment of a novel integrated geothermal energy-based system for hydrogen production and storage

Cited by 74 publications

References 12 publications

Geothermal energy use in hydrogen production: A review

Geothermal energy use in hydrogen production: A review

Study on the hydrogenation of an Mm‐based AB ₅ ‐intermetallic for sustainable building applications

Geothermal Energy‐Driven Hydrogen Production Systems

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Thermodynamic analysis and assessment of a novel integrated geothermal energy-based system for hydrogen production and storage

Cited by 74 publications

References 12 publications

Geothermal energy use in hydrogen production: A review

Geothermal energy use in hydrogen production: A review

Study on the hydrogenation of an Mm‐based AB 5 ‐intermetallic for sustainable building applications

Geothermal Energy‐Driven Hydrogen Production Systems

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Product

Resources

About

Study on the hydrogenation of an Mm‐based AB ₅ ‐intermetallic for sustainable building applications