International Journal of Hydrogen Energy, Год журнала: 2024, Номер 78, С. 1449 - 1467
Опубликована: Июль 5, 2024
Язык: Английский
Процитировано
89
Renewable and Sustainable Energy Reviews, Год журнала: 2024, Номер 199, С. 114517 - 114517
Опубликована: Май 10, 2024
This study investigates utilizing hydrogen produced via water electrolysis to produce green ammonia. Routes are benchmarked based on employing either alkaline (AEC) or solid oxide (SOEC). Both existing and possible improvements modeled for the AEC SOEC technologies coupled with Haber-Bosch process synthesize The cost of ammonia is estimated considering electrolyzers both today future projections compared that "fossil" synthesized from natural gas. Threshold CO2 taxes required achieve parity between determined price gas levelized electricity. It found whereas a system cheaper today, shows be more cost-effective, when basing comparison projected electrolyzers. Green an SOEC-based plant have accost 495 €/t by 2050 assumed electricity 30 €/MWh. In plants, approximately 57 % 31 steam needed can generated through heat integration electrolyzer process, low-pressure high-pressure electrolyzers, respectively. A good fraction also covered intercoolers compressors. With SOEC, reducing 60 10 €/MWh would decrease 690 340 2050.
Язык: Английский
Процитировано
15
Energies, Год журнала: 2024, Номер 17(16), С. 4148 - 4148
Опубликована: Авг. 21, 2024
In recent years, global efforts towards a future with sustainable energy have intensified the development of renewable sources (RESs) such as offshore wind, solar photovoltaics (PVs), hydro, and geothermal. Concurrently, green hydrogen, produced via water electrolysis using these RESs, has been recognized promising solution to decarbonizing traditionally hard-to-abate sectors. Furthermore, hydrogen storage provides long-duration approach managing intermittency which ensures reliable stable electricity supply supports electric grid operations ancillary services like frequency voltage regulation. Despite significant progress, economy remains nascent, ongoing developments persistent uncertainties in economic, technological, regulatory aspects. This paper comprehensive review value chain, encompassing production, transportation logistics, methodologies, end-use applications, while identifying key research gaps. Particular emphasis is placed on integration into both grid-connected islanded systems, focus operational strategies enhance resilience efficiency over long short terms. Moreover, this draws case studies from pioneering projects inform that can accelerate adoption large-scale deployment technologies across diverse sectors geographies.
Язык: Английский
Процитировано
13
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 65, С. 526 - 539
Опубликована: Апрель 9, 2024
The use of alternative fuels is a primary means for decarbonising the maritime industry. Liquefied natural gas (LNG), liquid hydrogen (LH2), and ammonia (LNH3) are liquified gases among fuels. safety risks associated with these differ from traditional In addition to their low-temperature hazards, flammability LNG LH2 high toxicity LNH3 present challenges in fuel handlings due likelihood release during bunkering. This study aims at drawing extensive comparisons evaporation vapour dispersion behaviours three after accidents bunkering discuss issues. involved event on main deck area reference bulk carrier deadweight 208,000 tonnes. Two scenarios were considered: Scenario 1 0.3 m3 fuel, 2 100 kg fuel. An empirical equation was used calculate process, Computational Fluid Dynamic (CFD) code FDS employed simulate clouds. obtained results reveal that has highest rate, followed by LNH3. clouds spread along surface, while cloud exhibits upward dispersion. flammable remain within area, whereas toxic disperses towards shore spreads near ground side. Based behaviours, hazards comparable, poses significantly higher hazards. terms hazard mitigations, effective water curtain systems can suppress
Язык: Английский
Процитировано
10
Renewable Energy, Год журнала: 2025, Номер unknown, С. 122286 - 122286
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
International Journal of Hydrogen Energy, Год журнала: 2025, Номер 102, С. 1231 - 1242
Опубликована: Янв. 15, 2025
Язык: Английский
Процитировано
1
Energy Conversion and Management, Год журнала: 2025, Номер 327, С. 119494 - 119494
Опубликована: Янв. 21, 2025
Язык: Английский
Процитировано
1
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 72, С. 49 - 59
Опубликована: Май 27, 2024
This study investigates the impact of including (or neglecting) variable efficiency hydrogen electrolyzers as a function operating power in modelling green produced from renewable energy sources. Results show that neglecting electrolyzer efficiency, is commonly done studies hydrogen, leads to significant overestimation production range 5–24%. The effects time resolution used models are also investigated, well option for switch stand-by mode instead powering down and ramp rate constraints. indicate these have minor effect on overall production, with use hour data leading 0.2–2%, relative using 5-min data. three solar farms wind Australia, which it observed 55% more than farms. results this highlight critical importance production. As industry scales, continuing neglect would lead by tens megatonnes.
Язык: Английский
Процитировано
6
International Journal of Hydrogen Energy, Год журнала: 2024, Номер 86, С. 985 - 1009
Опубликована: Сен. 4, 2024
Язык: Английский
Процитировано
6
Energy Reports, Год журнала: 2024, Номер 12, С. 3671 - 3689
Опубликована: Сен. 28, 2024
Язык: Английский
Процитировано
6