Performance assessment of a solar hydrogen and electricity production plant using high temperature PEM electrolyzer and energy storage

Nafchi, F. Moradi; Baniasadi, Ehsan; Afshari, Ebrahim; Javanı, Nader

doi:10.1016/j.ijhydene.2017.09.058

Cited by 116 publications

(17 citation statements)

References 31 publications

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“…Benefiting from the inherent adequate gas purity, the operation of PEMECs at loads ranging from nominal conditions to shutdown mode is typically allowed . At present, studies considering the combination of ET-PEMECs with renewable energies are limited to simulations and Figure depicts an integrated solar-driven plant . In this system, a concentrating solar power module was assisted by a NaNO 3 -KNO 3 molten salt thermal energy storage module to continuously generate superheated steam, which was utilized to produce electricity through Rankine power cycle.…”

Section: Elevated Temperature Polymer Electrolyte Membrane Electrolys...mentioning

confidence: 99%

Section: Elevated Temperature Polymer Electrolyte Membrane Electrolys...mentioning

confidence: 99%

“…3 At present, studies considering the combination of ET-PEMECs with renewable energies are limited to simulations and Figure 18 depicts an integrated solar-driven plant. 312 In this system, a concentrating solar power module was assisted by a NaNO 3 -KNO 3 molten salt thermal energy storage module to continuously generate superheated steam, which was utilized to produce electricity through Rankine power cycle. Furthermore, the ET-PEMEC absorbed required thermal energy from the outlet steam of the low pressure turbine and consumed 30% of the generated electric power to produce hydrogen, leading to improved overall energy/exergy efficiency and operation flexibility.…”

Section: Electrolysis In Et-pemec Stacks and Systemsmentioning

confidence: 99%

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Water Electrolysis toward Elevated Temperature: Advances, Challenges and Frontiers

et al. 2023

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Since severe global warming and related climate issues have been caused by the extensive utilization of fossil fuels, the vigorous development of renewable resources is needed, and transformation into stable chemical energy is required to overcome the detriment of their fluctuations as energy sources. As an environmentally friendly and efficient energy carrier, hydrogen can be employed in various industries and produced directly by renewable energy (called green hydrogen). Nevertheless, large-scale green hydrogen production by water electrolysis is prohibited by its uncompetitive cost caused by a high specific energy demand and electricity expenses, which can be overcome by enhancing the corresponding thermodynamics and kinetics at elevated working temperatures. In the present review, the effects of temperature variation are primarily introduced from the perspective of electrolysis cells. Following an increasing order of working temperature, multidimensional evaluations considering materials and structures, performance, degradation mechanisms and mitigation strategies as well as electrolysis in stacks and systems are presented based on elevated temperature alkaline electrolysis cells and polymer electrolyte membrane electrolysis cells (ET-AECs and ET-PEMECs), elevated temperature ionic conductors (ET-ICs), protonic ceramic electrolysis cells (PCECs) and solid oxide electrolysis cells (SOECs).

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Section: Elevated Temperature Polymer Electrolyte Membrane Electrolys...mentioning

confidence: 99%

Section: Elevated Temperature Polymer Electrolyte Membrane Electrolys...mentioning

confidence: 99%

Section: Electrolysis In Et-pemec Stacks and Systemsmentioning

confidence: 99%

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Water Electrolysis toward Elevated Temperature: Advances, Challenges and Frontiers

et al. 2023

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“…Effect of heat recovery and utilization-A number of studies have already looked into integrated energy systems involving LT PEMWE. [64][65][66][67][68][69] This can also be extended to ET [70] and incorporate heat utilization for secondary purposes such as, but not limited to, the examples outlined above.…”

Section: Challenges For Et Operation and Measures For System Improvementmentioning

confidence: 99%

Review and Prospects of PEM Water Electrolysis at Elevated Temperature Operation

Bonanno,

Müller,

Bensmann

et al. 2023

Adv Materials Technologies

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Polymer electrolyte membrane water electrolyzers (PEMWE) are currently restricted to an operating temperature range between 50 to 80 °C. This review shows that elevated temperature (ET) above 90 °C can be advantageous with respect to i) reduced cell voltages, ii) a reduction of catalyst loading or possibly the employment of less noble electrocatalysts, and iii) a greater potential for waste heat utilization when the electrolyzer is operated in exothermal mode (when the cell voltage is higher than the thermoneutral voltage). Together with presenting an overview of the materials and components utilized in elevated temperature PEMWE under liquid and steam operation, this article summarizes the experimental and modeling performances reported to date, highlights the challenges ahead, and suggests aspects, which will need to be considered to improve the performance at elevated temperature. Key points, which arise from this work are the extensive need of re‐assessing the material selection both for the cell components and also at a system level, the effects and optimization of working with steam operation, and in the long run, the need for techno‐economic analyses to ultimately assess whether efficiency gains will truly translate to a cost‐effective technology alternative.

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“…Typically, there is also a mismatch between production capacity and demand, resulting in overproduction or shortage. Storing energy in the form of hydrogen can coordinate production and consumption [30,31,32]. Each hydrogen storage technique possesses its own characteristics, such as energy density, speed of kinetics, and efficiency.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Storage for Mobility: A Review

2019

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Numerous reviews on hydrogen storage have previously been published. However, most of these reviews deal either exclusively with storage materials or the global hydrogen economy. This paper presents a review of hydrogen storage systems that are relevant for mobility applications. The ideal storage medium should allow high volumetric and gravimetric energy densities, quick uptake and release of fuel, operation at room temperatures and atmospheric pressure, safe use, and balanced cost-effectiveness. All current hydrogen storage technologies have significant drawbacks, including complex thermal management systems, boil-off, poor efficiency, expensive catalysts, stability issues, slow response rates, high operating pressures, low energy densities, and risks of violent and uncontrolled spontaneous reactions. While not perfect, the current leading industry standard of compressed hydrogen offers a functional solution and demonstrates a storage option for mobility compared to other technologies.

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Performance assessment of a solar hydrogen and electricity production plant using high temperature PEM electrolyzer and energy storage

Cited by 116 publications

References 31 publications

Water Electrolysis toward Elevated Temperature: Advances, Challenges and Frontiers

Water Electrolysis toward Elevated Temperature: Advances, Challenges and Frontiers

Review and Prospects of PEM Water Electrolysis at Elevated Temperature Operation

Hydrogen Storage for Mobility: A Review

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