Comparative optimization study of three novel integrated hydrogen production systems with SOEC, PEM, and alkaline electrolyzer

Nejadian, Mehrnaz Mohebali; Ahmadi, Pouria; Houshfar, Ehsan

doi:10.1016/j.fuel.2022.126835

Cited by 43 publications

(8 citation statements)

References 53 publications

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“…However, the technology maturity of PEM with high cost is slightly lower than AWE. Compared with AWE technology, PEM electrolyzer has the following advantages [17,18]: (1) the solid electrolyte membrane enables a large pressure difference to be borne on both sides, which unidirectionally permits hydrogen ion conduction, isolates hydrogen and oxygen, and improves safety and conversion rates; (2) the thin PEM electrolyte film reduces the electrode spacing, resulting in lower voltage and energy consumption and a more compact tank structure; (3) the electrolyte is pure water, which is non-corrosive; (4) the electrolytic products are also kept clean; and (5) there is more flexible operation (load range 5~120%) [19].…”

Section: Proton Exchange Membrane Water Electrolysis For Hydrogen Pro...mentioning

confidence: 99%

Current Status and Economic Analysis of Green Hydrogen Energy Industry Chain

Yan,

Zheng,

Wei

et al. 2024

Processes

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Under the background of the power system profoundly reforming, hydrogen energy from renewable energy, as an important carrier for constructing a clean, low-carbon, safe and efficient energy system, is a necessary way to realize the objectives of carbon peaking and carbon neutrality. As a strategic energy source, hydrogen plays a significant role in accelerating the clean energy transition and promoting renewable energy. However, the cost and technology are the two main constraints to green hydrogen energy development. Herein, the technological development status and economy of the whole industrial chain for green hydrogen energy “production-storage-transportation-use” are discussed and reviewed. After analysis, the electricity price and equipment cost are key factors to limiting the development of alkaline and proton exchange membrane hydrogen production technology; the quantity, scale and distance of transportation are key to controlling the costs of hydrogen storage and transportation. The application of hydrogen energy is mainly concentrated in the traditional industries. With the gradual upgrading and progress of the top-level design and technology, the application of hydrogen energy mainly including traffic transportation, industrial engineering, energy storage, power to gas and microgrid will show a diversified development trend. And the bottleneck problems and development trends of the hydrogen energy industry chain are also summarized and viewed.

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Section: Proton Exchange Membrane Water Electrolysis For Hydrogen Pro...mentioning

confidence: 99%

Current Status and Economic Analysis of Green Hydrogen Energy Industry Chain

Yan,

Zheng,

Wei

et al. 2024

Processes

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“…It is clear that the model captured the problem’s physics and understood the variations in the input parameters. The evaluation of the model was carried out using the mean absolute error and R_squared [ 49 , 50 , 51 , 52 , 53 ]. The model was able to achieve an MAE of 1.98%, and its

was 0.98.…”

Section: Artificial Neural Networkmentioning

confidence: 99%

Thermodynamics Investigation and Artificial Neural Network Prediction of Energy, Exergy, and Hydrogen Production from a Solar Thermochemical Plant Using a Polymer Membrane Electrolyzer

Jery

Salman

Al-Khafaji³

et al. 2023

Molecules

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Hydrogen production using polymer membrane electrolyzers is an effective and valuable way of generating an environmentally friendly energy source. Hydrogen and oxygen generated by electrolyzers can power drone fuel cells. The thermodynamic analysis of polymer membrane electrolyzers to identify key losses and optimize their performance is fundamental and necessary. In this article, the process of the electrolysis of water by a polymer membrane electrolyzer in combination with a concentrated solar system in order to generate power and hydrogen was studied, and the effect of radiation intensity, current density, and other functional variables on the hydrogen production was investigated. It was shown that with an increasing current density, the voltage generation of the electrolyzer increased, and the energy efficiency and exergy of the electrolyzer decreased. Additionally, as the temperature rose, the pressure dropped, the thickness of the Nafion membrane increased, the voltage decreased, and the electrolyzer performed better. By increasing the intensity of the incoming radiation from 125 W/m2to 320 W/m2, the hydrogen production increased by 111%, and the energy efficiency and exergy of the electrolyzer both decreased by 14% due to the higher ratio of input electric current to output hydrogen. Finally, machine-learning-based predictions were conducted to forecast the energy efficiency, exergy efficiency, voltage, and hydrogen production rate in different scenarios. The results proved to be very accurate compared to the analytical results. Hyperparameter tuning was utilized to adjust the model parameters, and the models’ results showed an MAE lower than 1.98% and an R2 higher than 0.98.

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“…Na eletrólise alcalina o hidrogênio é produzido utilizando eletrolisadores que são compostos pelos eletrodos e eletrólito. Os eletrodos são feitos de metais inertes como aço inoxidável, platina, irídio (Nejadian et al, 2023). Os eletrólitos líquidos possuem boa condutividade iônica, quando aplicada uma corrente elétrica contínua, os elétrons fluem na solução eletrolítica do terminal negativo, cátodo, da fonte de energia, onde são atraídos pelos íons de hidrogênio existentes na água, produzido o hidrogênio -H2 (Equação 3).…”

Section: Métodos De Produção Do Hidrogêniounclassified

Importância do hidrogênio na indústria de mineração como fonte de energia renovável

Figueiredo,

Silva,

Ortiz

2023

J. Env. Anal. Progr.

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Na mineração, o sistema de operação depende de equipamentos que consomem grandes quantidades de energia. Nas operações mineiras, os equipamentos a diesel são amplamente empregados devido à sua flexibilidade, capacidade de carga e adaptabilidade a várias condições de terreno. Entretanto, apresentam alto consumo de óleo diesel e alta taxa de emissão de gases de efeito estufa. Este artigo oferece uma visão do efeito do hidrogênio sobre os motores diesel na busca de alternativas de energia renovável que estejam em sintonia com a redução do impacto ambiental decorrente do uso de combustíveis derivados do petróleo. É seguido por uma discussão do consumo de energia na mineração. Apresenta as tecnologias de produção do hidrogênio, as vantagens em utilizá-los em quantidades controladas e os desafios de produção, armazenamento e custos de fornecimento. Destaca-se o hidrogênio verde, livre de carbono, uma alternativa emergente na descarbonização das minas.

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Comparative optimization study of three novel integrated hydrogen production systems with SOEC, PEM, and alkaline electrolyzer

Cited by 43 publications

References 53 publications

Current Status and Economic Analysis of Green Hydrogen Energy Industry Chain

Current Status and Economic Analysis of Green Hydrogen Energy Industry Chain

Thermodynamics Investigation and Artificial Neural Network Prediction of Energy, Exergy, and Hydrogen Production from a Solar Thermochemical Plant Using a Polymer Membrane Electrolyzer

Importância do hidrogênio na indústria de mineração como fonte de energia renovável

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