Photovoltaic solar energy conversion for hydrogen production by alkaline water electrolysis: Conceptual design and analysis

Bhattacharyya, Rupsha; Misra, Apurva; Sandeep, K.C.

doi:10.1016/j.enconman.2016.11.057

Cited by 121 publications

(36 citation statements)

References 27 publications

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“…Hence, for increasing the reliability of the power generation, the combination of these two systems is a feasible proposition [4][5][6][7][8][9][10][11]. Moreover, typically, the irradiance and wind complement each other [12][13][14][15]. Because the availability of irradiance and wind is not guaranteed, the inclusion of a storage system is important for improving the overall system reliability.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of hybrid wind/photovoltaic electrolyzer for maximum hydrogen production using imperialist competitive algorithm

Khalilnejad

Sundararajan

2017

J. Mod. Power Syst. Clean Energy

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The rising demand for high-density power storage systems such as hydrogen, combined with renewable power production systems, has led to the design of optimal power production and storage systems. In this study, a wind and photovoltaic (PV) hybrid electrolyzer system, which maximizes the hydrogen production for a diurnal operation of the system, is designed and simulated. The operation of the system is optimized using imperialist competitive algorithm (ICA). The objective of this optimization is to combine the PV array and wind turbine (WT) in a way that, for minimized average excess power generation, maximum hydrogen would be produced. Actual meteorological data of Miami is used for simulations. A framework of the advanced alkaline electrolyzer with the detailed electrochemical model is used. This optimal system comprises a PV module with a power of 7.9 kW and a WT module with a power of 11 kW. The rate of hydrogen production is 0.0192 mol/s; an average Faraday efficiency of 86.9 percent. The electrolyzer works with 53.7 percent of its nominal power. The availability of the wind for longer periods of time reflects the greater contribution of WT in comparison with PV towards the overall throughput of the system.

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Section: Introductionmentioning

confidence: 99%

Optimal design of hybrid wind/photovoltaic electrolyzer for maximum hydrogen production using imperialist competitive algorithm

Khalilnejad

Sundararajan

2017

J. Mod. Power Syst. Clean Energy

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“…The most important barrier to large‐scale electrolytic solar‐to‐hydrogen process is the high cost of solar electricity. Ground located or roof top mounted PV system can be applied to generate the required electrical power for the solar‐to‐hydrogen system allowing grid‐independent operation and consequently reduction in solar hydrogen cost …”

Section: Concentrated Solar Thermal Hydrogen Productionmentioning

confidence: 99%

“…Ground located or roof top mounted PV system can be applied to generate the required electrical power for the solar-to-hydrogen system allowing grid-independent operation and consequently reduction in solar hydrogen cost. 122 In AWE-based hydrogen production technique, two electrodes (made from nonnoble materials) separated by a diaphragm are immersed in a liquid alkaline electrolyte (KOH or NaOH). 123 The diaphragm is permeable to the water molecules and hydroxide ions (OH − ) between the two electrodes to separate the product gases.…”

Section: Alkaline Water Electrolysismentioning

confidence: 99%

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

2020

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Summary Solar energy is going to play a crucial role in the future energy scenario of the world that conducts interests to solar‐to‐hydrogen as a means of achieving a clean energy carrier. Hydrogen is a sustainable energy carrier, capable of substituting fossil fuels and decreasing carbon dioxide (CO2) emission to save the world from global warming. Hydrogen production from ubiquitous sustainable solar energy and an abundantly available water is an environmentally friendly solution for globally increasing energy demands and ensures long‐term energy security. Among various solar hydrogen production routes, this study concentrates on solar thermolysis, solar thermal hydrogen via electrolysis, thermochemical water splitting, fossil fuels decarbonization, and photovoltaic‐based hydrogen production with special focus on the concentrated photovoltaic (CPV) system. Energy management and thermodynamic analysis of CPV‐based hydrogen production as the near‐term sustainable option are developed. The capability of three electrolysis systems including alkaline water electrolysis (AWE), polymer electrolyte membrane electrolysis, and solid oxide electrolysis for coupling to solar systems for H2 production is discussed. Since the cost of solar hydrogen has a very large range because of the various employed technologies, the challenges, pros and cons of the different methods, and the commercialization processes are also noticed. Among three electrolysis technologies considered for postulated solar hydrogen economy, AWE is found the most mature to integrate with the CPV system. Although substantial progresses have been made in solar hydrogen production technologies, the review indicates that these systems require further maturation to emulate the produced grid‐based hydrogen.

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“…As a key equipment in the direct energy interaction between the hydrogen production system and the fluctuating power supply, the water electrolyzer, when used for reducing the fluctuation of the renewable energy, displays strong adaptability to its unstable power output compared with the basic application theory and key technology of other energy storing media or smart carriers . The electrochemical process of the electricity‐to‐hydrogen transition is complicated experimental studies, and thus, it is time‐consuming and economically inefficient . For experimental study simplification and system regulation, it is important to understand the electrical characteristics as well as the modeling and simulation methodology.…”

Section: Introductionmentioning

confidence: 99%

“…[11][12][13][14][15] The electrochemical process of the electricity-to-hydrogen transition is complicated experimental studies, and thus, it is timeconsuming and economically inefficient. [16][17][18] For experimental study simplification and system regulation, it is important to understand the electrical characteristics as well as the modeling and simulation methodology.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling and simulation for external electrothermal characteristics of an alkaline water electrolyzer

Shen¹,

Zhang

Lie

et al. 2018

Int J Energy Res

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Summary The water electrolyzer is a key device in the direct energy interaction between the hydrogen production system and the fluctuation power supply. Therefore, to understand its external electrothermal characteristics and modeling, an efficient simulation method is not only theoretically significant but also of great value in engineering applications for the key techniques, such as the study of control strategy and optimum configuration of renewable energy generation. Currently, research studies on the electrothermal characteristics of the alkaline water electrolyzer (AWE) are focused mainly on the microcosmic mechanism, without sufficient emphasis on the modeling and simulation technique of the external macroscopic electrothermal characteristics. Based on relevant theories in electrochemistry and test results of the electrothermal characteristics, this paper establishes a mathematical model of the equivalent impedance characteristics, electrothermal characteristics, and power regulation characteristics of AWE. Then, a simulation model of the external electrothermal characteristics is built with Matlab/Simulink. Finally, the accuracy of the established mathematical model and the functionality of the simulation model are verified. The research can provide some reference for the modeling and simulation of the electrical characteristics of AWE.

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Photovoltaic solar energy conversion for hydrogen production by alkaline water electrolysis: Conceptual design and analysis

Cited by 121 publications

References 27 publications

Optimal design of hybrid wind/photovoltaic electrolyzer for maximum hydrogen production using imperialist competitive algorithm

Optimal design of hybrid wind/photovoltaic electrolyzer for maximum hydrogen production using imperialist competitive algorithm

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

Mathematical modeling and simulation for external electrothermal characteristics of an alkaline water electrolyzer

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