Techno-economic evaluation and parametric study of generating green hydrogen from waste heat recovery of efficient solid oxide fuel cell

Cao, Yan; Dhahad, Hayder A.; Sharma, Kamal; El-Shafay, A.S.; Ahmed, Ahmed Najat; Shamseldin, Mohamed Α.; Almojil, Sattam Fahad; Almohana, Abdulaziz Ibrahim; Alali, Abdulrhman Fahmi; Farhang, Babak

doi:10.1016/j.ijhydene.2022.02.160

Cited by 16 publications

(6 citation statements)

References 46 publications

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“…Often, production costs are in the center of these ones (e.g., [31][32][33][34][35][36][37]). Other target figures/indicators used are fuel cell system costs [38,39], costs of electricity or energy [40][41][42][43][44], total product unit costs [45], capital costs [46], costs for fuels [47], the net present value (NPV) [48,49], or ownership costs [50].…”

Section: Economic Focusmentioning

confidence: 99%

“…Itoh et al consider costs of different stack components without applying a specific method [33]. The levelized cost of energy (LCoE) [43,44] as well as the net present cost are calculated by Pal and Mukherjee [42]. Some authors apply specific equations and formulas for calculating the costs for hydrogen production [47] or for system and component costs [39,45].…”

Section: Economic Focusmentioning

confidence: 99%

“…Finally, different types of fuel cells are central to the papers. Some of them consider the SOFC [31,33,37,43,44,49], the PEMFC [34,39,45,47], the MCFC [41], and the PCFC [31].…”

Section: Economic Focusmentioning

confidence: 99%

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Sustainability-Oriented Assessment of Fuel Cells—A Literature Review

Tampe,

Höse,

Götze

2023

Sustainability

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Enhancing the sustainability of activities is an undebatable need for decision makers regarding the economy as well as society. Fuel cells and their application in different areas, such as energy supply or mobility, are viewed as a promising means towards more sustainability. However, fuel cells as well as fuel-cell-based application systems cause a couple of possibly conflictive impacts in terms of ecological, economic, and social targets—their positive contribution to sustainability is not confident. Consequently, a significant assessment of sustainability is needed to enable a targeted development of fuel cells and their application systems, including the selection of alternative design variants. Furthermore, such assessment is necessary to provide evidence for the intended improvements and thereby contribute to market success and implementation of the systems. However, an overview of the existing methods for sustainability-related assessment of fuel cells and fuel-cell-based systems as well as the outcomes of the assessments does not exist. Therefore, a systematic literature review is conducted without restriction of fuel cell types and evaluation methods. Such a comprehensive overview does not yet exist to the best of the authors’ knowledge. With regard to the suggested or applied methods, the results show, amongst others, that the economic assessment does not refer to the methodical state-of-art, the social dimension is neglected, and an overall assessment of sustainability, aggregating all three dimensions, is not conducted. Due to the variety of analyzed objects as well as applied methods, the outcomes of the studies provide not more than scattered knowledge about the relevance of components and the advantageousness of fuel cells, their variants, and their application systems regarding sustainability. To contribute to avoiding methodological deficiencies, a procedure model for an integrated assessment is presented.

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Section: Economic Focusmentioning

confidence: 99%

Section: Economic Focusmentioning

confidence: 99%

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Sustainability-Oriented Assessment of Fuel Cells—A Literature Review

Tampe,

Höse,

Götze

2023

Sustainability

View full text Add to dashboard Cite

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“…Yan Cao et al [28] tried to recover heat from biomass for hydrogen production. Yan Cao et al [29] researched a novel hybrid energy system consisting of a molten carbonate fuel cell (MCFC) and explored different options for generating hydrogen from the waste heat of the MCFC. Somayeh Parsa et al [30] utilized the exhaust gas from a homogeneous charge compression ignition engine containing waste heat for hydrogen production.…”

Section: Introductionmentioning

confidence: 99%

“…Figure29. Annual operating costs of integrated systems and economic benefits of hydrogen production in office buildings in different cities, solar panel area 100,000 m 2 , wind turbines 10,000.…”

mentioning

confidence: 99%

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

Yu,

Yang,

Chen

et al. 2024

Sustainability

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To improve the recovery of waste heat and avoid the problem of abandoning wind and solar energy, a multi-energy complementary distributed energy system (MECDES) is proposed, integrating waste heat and surplus electricity for hydrogen storage. The system comprises a combined cooling, heating, and power (CCHP) system with a gas engine (GE), solar and wind power generation, and miniaturized natural gas hydrogen production equipment (MNGHPE). In this novel system, the GE’s waste heat is recycled as water vapor for hydrogen production in the waste heat boiler, while surplus electricity from renewable sources powers the MNGHPE. A mathematical model was developed to simulate hydrogen production in three building types: offices, hotels, and hospitals. Simulation results demonstrate the system’s ability to store waste heat and surplus electricity as hydrogen, thereby providing economic benefit, energy savings, and carbon reduction. Compared with traditional energy supply methods, the integrated system achieves maximum energy savings and carbon emission reduction in office buildings, with an annual primary energy reduction rate of 49.42–85.10% and an annual carbon emission reduction rate of 34.88–47.00%. The hydrogen production’s profit rate is approximately 70%. If the produced hydrogen is supplied to building through a hydrogen fuel cell, the primary energy reduction rate is further decreased by 2.86–3.04%, and the carbon emission reduction rate is further decreased by 12.67–14.26%. This research solves the problem of waste heat and surplus energy in MECDESs by the method of hydrogen storage and system integration. The economic benefits, energy savings, and carbon reduction effects of different building types and different energy allocation scenarios were compared, as well as the profitability of hydrogen production and the factors affecting it. This has a positive technical guidance role for the practical application of MECDESs.

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Thermodynamic and Economic Analysis of the Green Ammonia Synthesis System Driven by Synergistic Hydrogen Production Using Alkaline Water Electrolyzers and Proton Exchange Membrane Electrolyzers

Yu,

Liu,

et al. 2024

Energy Tech

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Green ammonia and hydrogen from renewable energy sources have emerged as crucial players during the transition of the chemical industry from a fossil energy‐dominated economy to one that is environmentally friendly. This work proposes a green ammonia synthesis system driven by synergistic hydrogen generation using alkaline water electrolyzers (AWE) and proton exchange membrane electrolyzers (PEMEC). The effects of hydrogen‐production ratios of PEMEC and AWE on the thermodynamic and economic performance of the system are compared and analyzed via multi‐objective optimization. The findings showed that an increase in the amount of hydrogen produced by PEMEC improves the system's energy efficiency, but the payback period is delayed because of the PEMEC high initial investment cost. The techno‐economic performance of the system at a 1:1 ratio of PEMEC to AWE hydrogen production are investigated considering the system level heat integration based on the pinch point analysis method to maximize the heat recovery. The results show that increasing the operational temperature, the pressure of the electrolyzer, and the ammonia synthesis pressure will enhance the system's thermal performance. Economic analysis shows that reducing electricity prices and electrolyzer investment costs will be the key to achieving the economic feasibility of the green ammonia system.

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Techno-economic evaluation and parametric study of generating green hydrogen from waste heat recovery of efficient solid oxide fuel cell

Cited by 16 publications

References 46 publications

Sustainability-Oriented Assessment of Fuel Cells—A Literature Review

Sustainability-Oriented Assessment of Fuel Cells—A Literature Review

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

Thermodynamic and Economic Analysis of the Green Ammonia Synthesis System Driven by Synergistic Hydrogen Production Using Alkaline Water Electrolyzers and Proton Exchange Membrane Electrolyzers

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