Influence of wind turbine power curve and electrolyzer operating temperature on hydrogen production in wind–hydrogen systems

Lucena, Francisco Javier Pino; Valverde, Luís; Rosa, Felipe

doi:10.1016/j.jpowsour.2010.10.060

Cited by 57 publications

(35 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exemplary experimental characteristic U‐j‐curves for AEL (Casale Chemicals, 25 kW, 20 bar, 70°C), PEMEL (Giner, 5.6 kW, 7 bar, 58°C) and HTEL (single cell test, 1 bar, 750°C).…”

Section: Electrochemical Sng Productionmentioning

confidence: 99%

Comparison of synthetic natural gas production pathways for the storage of renewable energy

Fendt

Buttler

Gaderer

et al. 2015

WIREs Energy & Environment

View full text Add to dashboard Cite

The production of synthetic natural gas (SNG) to store renewable energy in a chemical energy carrier can be accomplished basically through three main production pathways: the biochemical (biogas upgrade), thermochemical (gasification and synthesis gas upgrade) and electrochemical ('Power-to-Gas') pathway. The technologies applied in these concepts are described and the three pathways are compared in terms of their state of development, efficiencies, and economics. While the biochemical pathway is already established on a commercial scale, the thermochemical and electrochemical routes are still in the pilot-plant phase. Biochemical production of SNG reaches efficiencies in the range of 55-57% but with a potential of above 80%. In comparison, higher efficiencies of up to 70% for the thermochemical pathway are currently expected, with future improvement up to 75%. Electrochemical production achieves efficiencies in the range of 54-60% with expected potential up to 78%. Therefore at the moment the highest efficiencies are given for the thermochemical pathway followed by the electrochemical and biochemical pathways. Economic evaluation is done by comparing specific production costs as well as mean specific investment costs for SNG. Generally speaking, specific production and investment costs decrease with time horizon and increasing scale of the plant. Specific production cost levels in €ct/kWh SNG vary between 5.9 and 13.7 (biochemical), 5.6 and 37 (thermochemical), and 8.2 and 93 (electrochemical). Thus, none of the concepts can compete with today's natural gas prices, but all options are able to provide valuable assistance for a sustainable transition of the energy system.

show abstract

“…Exemplary experimental characteristic U‐j‐curves for AEL (Casale Chemicals, 25 kW, 20 bar, 70°C), PEMEL (Giner, 5.6 kW, 7 bar, 58°C) and HTEL (single cell test, 1 bar, 750°C).…”

Section: Electrochemical Sng Productionmentioning

confidence: 99%

Comparison of synthetic natural gas production pathways for the storage of renewable energy

Fendt

Buttler

Gaderer

et al. 2015

WIREs Energy & Environment

View full text Add to dashboard Cite

show abstract

“…Relevant research studies have confirmed that efficient use of thermal energy is feasible in improving the device performance and the effect is significant . The electrolyzer temperature has enormous impact on the electrode reaction speed, overpotential, selectivity, and electrochemical engineering working voltage and current efficiencies . Therefore, the research on the recycling of waste heat in the hydrogen production process and on the matching of electrothermal characteristics of electrolyzers is theoretically practical and has great potential.…”

Section: Introductionmentioning

confidence: 99%

“…[18][19][20] The electrolyzer temperature has enormous impact on the electrode reaction speed, overpotential, selectivity, and electrochemical engineering working voltage and current efficiencies. 21,22 Therefore, the research on the recycling of waste heat in the hydrogen production process and on the matching of electrothermal characteristics of electrolyzers is theoretically practical and has great potential. This paper, aiming to improve the energy conversion efficiency and power regulation performance of volatile renewable energy AWE, has developed new designs of electrolyzer and optimized control strategies based on the concept of heat exchange, and case studies have been made for feasibility verification.…”

Section: Introductionmentioning

confidence: 99%

Structure design and control strategy of a new alkaline water electrolyzer based on heat exchange

Shen

Zhang

et al. 2019

Int J Energy Res

View full text Add to dashboard Cite

Summary The overall energy conversion efficiency and the power regulation performance of the volatile renewable energy alkaline water electrolyzer (AWE) hydrogen production system need to be improved. Efficient use of heat in the electrolysis process and optimization of the control strategy are technically feasible. According to the concept of heat exchange utilization, this paper proposes a series parallel modular structure of AWE, which realizes heat exchange and utilization between modules. Based on the electrothermal characteristics of AWE and the power fluctuation characteristics of volatile energy, the function positioning and control strategy of the module are proposed. Theoretical analysis, together with a case study, has been conducted to show the overall efficiency and power regulation characteristics of the traditional AWE, the traditional combined AWE and the proposed new AWE under various working scenarios. Research study results show that the proposed new structure and control strategy can effectively improve the overall energy efficiency and static as well as dynamic power regulation characteristics of the electrolyzer, with the energy efficiency increased up to 16%. Although the static power range decreases slightly in some conditions, it always maintains the ability of wide range regulation. The findings can provide reference for the research and development of new AWE that improve the power response capability and the comprehensive utilization of energy under the premise of ensuring a certain power adjustment range.

show abstract

“…Other papers have focused on the modelling of alkaline electrolysers [15,16], and some work has demonstrated the operation of electrolysers with renewable sources like wind and solar power [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Demonstration of the operation and performance of a pressurised alkaline electrolyser operating in the hydrogen fuelling station in Porsgrunn, Norway

Kiaee

Cruden

Chladek

et al. 2015

Energy Conversion and Management

View full text Add to dashboard Cite

Influence of wind turbine power curve and electrolyzer operating temperature on hydrogen production in wind–hydrogen systems

Cited by 57 publications

References 6 publications

Comparison of synthetic natural gas production pathways for the storage of renewable energy

Comparison of synthetic natural gas production pathways for the storage of renewable energy

Structure design and control strategy of a new alkaline water electrolyzer based on heat exchange

Demonstration of the operation and performance of a pressurised alkaline electrolyser operating in the hydrogen fuelling station in Porsgrunn, Norway

Contact Info

Product

Resources

About