International Journal of Hydrogen Energy最新文献

{"title":"Renewable dimethyl ether production under the integration from municipal solid waste oxy-fuel combustion and water electrolyze: Insights from advanced exergy and exergoeconomic perspectives","authors":"Songbing Peng ,&nbsp;Yuting Tang ,&nbsp;Jiehong Tang ,&nbsp;Xiaojing Wang ,&nbsp;Xiaowen Liang ,&nbsp;Haohang Huang ,&nbsp;Zejie Zheng ,&nbsp;Xiaoqian Ma","doi":"10.1016/j.ijhydene.2025.05.385","DOIUrl":"10.1016/j.ijhydene.2025.05.385","url":null,"abstract":"<div><div>The critical challenges in municipal solid waste (MSW) management, combined with increasing demand for renewable energy, have heightened interest in Waste-to-Energy (WtE) technologies. However, current studies lack in-depth analysis of avoidable exergy destruction and exergy-based avoidable costs in WtE systems. This study investigates the advanced exergy and exergoeconomic performance of an MSW-to-dimethyl ether (MtD) system. The results indicate that the water electrolysis subsystem exhibits the highest avoidable exergy destruction (10,374.16 kW), representing the component with the greatest potential for improvement. The overall exergy efficiency of the MtD system is 47.15 %, with only 23.46 % of the total exergy destruction being avoidable. Exergoeconomic analysis reveals that the total avoidable system cost is $1424.17/h, accounting for 20.92 % of the total cost. Furthermore, exergy destruction is the primary cost driver for most components, underscoring that reducing exergy destruction is a key strategy for improving economic performance.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 253-265"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward carbon-neutral combustion: Synergistic CO2/H2O dilution for soot mitigation in oxy-fuel systems","authors":"Yindi Zhang ,&nbsp;Chengjing Wang ,&nbsp;Bowen Liang ,&nbsp;Mengting Si ,&nbsp;Yue Xin ,&nbsp;Weiwei Han ,&nbsp;Huaqiang Chu","doi":"10.1016/j.ijhydene.2025.05.387","DOIUrl":"10.1016/j.ijhydene.2025.05.387","url":null,"abstract":"<div><div>Soot emissions pose significant environmental and health challenges, necessitating innovative strategies to advance cleaner combustion technologies for sustainable energy generation. This study explores the thermochemical interactions of CO₂ and H₂O as effective diluents in oxygen-enriched ethylene diffusion flames, focusing on their impact on soot suppression and flame dynamics. Combined CO₂/H₂O dilution achieves intermediate suppression, redistributing soot closer to the burner outlet, thereby enhancing oxidation efficiency. Elevated oxygen concentrations increase flame temperature and soot nucleation but are counterbalanced by intensified OH and O₂ oxidation rates, highlighting the dual role of oxygen in promoting combustion efficiency while mitigating soot accumulation. Mechanistic insights into soot nucleation, surface growth via hydrogen-abstraction–C₂H₂–addition (HACA)/polycyclic aromatic hydrocarbons (PAHs) pathways, and oxidation dynamics underscore the dominance of radical chemistry (OH/O₂) and thermal-dilution effects in soot suppression. The findings demonstrate that optimizing CO₂/H₂O ratios in oxy-fuel systems significantly reduces soot emissions, offering a viable pathway for low-carbon combustion technologies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 229-240"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental and numerical investigation of mixing in a partially premixed CH4/H2 combustor","authors":"Sarah Link ,&nbsp;Gioele Ferrante ,&nbsp;Kaushal Dave,&nbsp;Giulia Monti,&nbsp;Georg Eitelberg,&nbsp;Francesca de Domenico","doi":"10.1016/j.ijhydene.2025.05.070","DOIUrl":"10.1016/j.ijhydene.2025.05.070","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The mixing of fuel and air is a key factor in determining NO&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; emissions during combustion. Lean-premixed burning strategies allow to control the flame temperature and therefore NO&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; emissions. However, for highly reactive fuels like hydrogen, the high flame speed makes full premixing dangerous due to the increased risk of flashback. In these cases, current combustor geometries are often operated in partially premixed modes with the fuel injected as close as possible to the combustion chamber. This highlights the need for effective mixing strategies to achieve a high degree of mixing over a short distance. This is even more critical in fuel-flexible combustion systems (e.g., combustors capable of burning both CH&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mtext&gt;4&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; and H&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mtext&gt;2&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;), as the mixing process is heavily influenced by the varying properties of the fuel mixture. In such cases, a comprehensive understanding of the mixing process is required to minimize NO&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; emissions under all fuel blends conditions. This paper investigates the mixing of fuel jets into a swirling air cross-flow of a partially-premixed, swirl stabilized combustor using a combined experimental and numerical approach. The injector features an axial swirler and a mixing tube where the air and the fuel jets mix before entering the combustion chamber. The experiments are performed in cold flow conditions. A variable mixture of helium–air is used to represent different blends of CH&lt;sub&gt;4&lt;/sub&gt;-H&lt;sub&gt;2&lt;/sub&gt; fuel, and the mixing process is visualized by seeding the fuel stream with DEHS droplets. Large-Eddy Simulations (LES) confirm the suitability of helium as a surrogate for H&lt;sub&gt;2&lt;/sub&gt; by demonstrating similar macro-mixing behavior for the two gases. This study examines the impact of varying fuel composition and momentum flux ratio (&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;J&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;swirl&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;) between the fuel jet and the swirling cross-flow on mixing performance. The results indicate that fuel with lower density achieve better mixing with the air at the mixing tube outlet. A numerical analysis of the radial transport terms reveals that higher H&lt;sub&gt;2&lt;/sub&gt; content in the fuel makes it less subject to outward convection which causes stratification close to the mixing tube outlet. Furthermore, the contribution of the molecular diffusion term increases with higher levels of H&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mtext&gt;2&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;, resulting in improved mixing. When increasing &lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;J&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;swirl&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; (up to &lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;J&lt;","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 176-192"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vacancy engineering in Na2LiAlH6: Enhancing hydrogen storage for sustainable energy solutions","authors":"Hudabia Murtaza ,&nbsp;Quratul Ain ,&nbsp;Junaid Munir ,&nbsp;Ibrahim Albrahee ,&nbsp;Saif M.H. Qaid ,&nbsp;Abdullah S. Aldwayyan","doi":"10.1016/j.ijhydene.2025.05.407","DOIUrl":"10.1016/j.ijhydene.2025.05.407","url":null,"abstract":"<div><div>Perovskite hydrides based on vacancy increase the hydrogen storage by generating empty spaces that promote hydrogen absorption and release. The FP-LAPW technique is used to compute the physical properties of Na₂LiAlH₆ and Na₂LiH₆. The volume optimization curves, tolerance factors, and formation energies are calculated for both Na₂LiAlH₆ and Na₂LiH₆ to verify their structural and thermo-dynamical stability. The elastic constants for cubic studied hydrides were investigated via the second derivative of the energy-strain tensor. The computed elastic constants and the mechanical attributes for Na₂LiH₆ revealed a drastic decline with the removal of the “Al” atom. The electronic properties reveal indirect bandgap of 5.37 eV for Na₂LiAlH₆ and metallic behavior for Na₂LiH₆. According to the hydrogen storage characteristics of the studied hydrides, the removal of the \"Al\" atom results in a notable decrease in desorption temperature. The gravimetric ratio for Na₂LiAlH₆ is obtained as 6.52 wt% whereas it increased to 9.23 wt% in Na₂LiH₆. According to the optical analysis, Na₂LiH₆ is more appropriate for infrared-based applications such as sensors or telecommunications because of its greater dispersion in the IR region. In the meanwhile, Na₂LiAlH₆ shows promise for ultraviolet applications such as UV detectors, coatings, or optoelectronic devices due to its higher polarization in the UV region.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"142 ","pages":"Pages 90-97"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the hydrogen leakage and diffusion behavior of long-distance high-pressure buried pure-hydrogen pipelines","authors":"Yajia Wang ,&nbsp;Bingcai Sun ,&nbsp;Laibin Zhang ,&nbsp;Gang Li ,&nbsp;Jianfeng Li ,&nbsp;Pei Li ,&nbsp;Nan Liu ,&nbsp;Junqi Yang ,&nbsp;Xi Chen","doi":"10.1016/j.ijhydene.2025.05.313","DOIUrl":"10.1016/j.ijhydene.2025.05.313","url":null,"abstract":"<div><div>As a cornerstone of large-scale hydrogen energy systems, high-pressure long-distance buried hydrogen pipelines are critical for mitigating regional resource imbalances and integrating production, storage, and utilization. Despite their importance, leakage risks induced by corrosion, external disturbances, and construction flaws can trigger hydrogen diffusion and soil accumulation, posing severe fire and explosion threats to public safety. While understanding leakage-induced diffusion dynamics is essential for hazard zone delineation and emergency response optimization, current models often oversimplify multi-parameter interactions. This study employs numerical simulations grounded in multi-phase flow theory to characterize hydrogen diffusion in soil environments, prioritizing parameters with industrial failure relevance: soil properties (porosity, viscous/inertial resistance coefficients), pipeline pressure, burial depth, and leakage aperture. Quantitative analysis demonstrates that these parameters collectively govern leakage mass flow rates. A time-dependent model quantifies the duration for ground-level hydrogen accumulation to reach the lower flammability limit (LFL, 4 % vol). Building on this temporal framework, an adaptive multi-source data fusion model is proposed, leveraging nonlinear regression with dynamic parameter weighting to decode variable inter-dependencies. Validated against simulation data, the model achieves a mean absolute error of 6.48 % and a determination coefficient (R²) of 0.964, outperforming conventional static-weight approaches. These advancements establish a methodology for real-time risk mapping and adaptive emergency strategy formulation in buried hydrogen infrastructure management.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 212-228"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy and financial evaluation of a hydrogen-producing multigeneration system for sustainable development","authors":"Yanan Li ,&nbsp;Tao Xie ,&nbsp;Li Ma","doi":"10.1016/j.ijhydene.2025.05.052","DOIUrl":"10.1016/j.ijhydene.2025.05.052","url":null,"abstract":"<div><div>This study establishes an innovative multigeneration system integrating biomass digestion, solar thermal collection, Brayton and Rankine cycles, and hydrogen production technologies for sustainable energy production. The comprehensive system simultaneously delivers electricity, heating, cooling, and hydrogen with exceptional efficiency. Thermodynamic analysis reveals the Brayton cycle, Steam Rankine cycle, and hydrogen liquefaction systems achieve energy efficiencies of 40 %, 41 %, and 65 % respectively, with corresponding exergy efficiencies of 51 %, 68 %, and 12 %. The complete integrated system demonstrates overall energy and exergy efficiencies of 45.52 % and 66.85 %. Financial assessment indicates robust economic viability with projected profitability by 2031 and a net present value of $7.70 million. Environmental analysis confirms significant CO2 emission reductions compared to conventional energy systems, supporting sustainable development objectives.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"140 ","pages":"Pages 815-830"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel metal hydride reactor design: The effect of using copper, AlN and AlSi10Mg composite fins on the dehydrogenation process of LaNi5-Metal alloy","authors":"Atef Chibani ,&nbsp;Chahrazed Boucetta ,&nbsp;Mohammed Amin Nassim Haddad ,&nbsp;Ali Boukhari ,&nbsp;Issam Fourar ,&nbsp;Slimane Merouani ,&nbsp;Riad Badji ,&nbsp;Samir Adjel ,&nbsp;Sihem Belkhiria ,&nbsp;Moustafa Boukraa ,&nbsp;Cherif Bougriou","doi":"10.1016/j.ijhydene.2025.05.290","DOIUrl":"10.1016/j.ijhydene.2025.05.290","url":null,"abstract":"<div><div>The optimal design of solid-state hydrogen storage devices is crucial for their effectiveness. This study investigates the thermal management of LaNi₅-based metal hydride reactors for solid-state hydrogen storage by incorporating various fin materials: copper, aluminum nitride (AlN), and Aluminum Silicon Magnesium (AlSi10Mg). Utilizing ANSYS FLUENT 15.0 for simulations within a 2D numerical model, User-Defined Functions (UDFs) were employed to access the dehydrogenation process over a half-hour period. The reactor is subjected to an initial temperature of 363 K and heating oil is introduced at a speed of 1 m/s pressures ranging from 1 to 2 bar. The impact of different fin materials on enhancing the reactor's desorption properties was evaluated through key metrics such as hydrogen concentration, forced convection heat transfer coefficient, and average reactor temperature. Results demonstrate a remarkable improvement in hydrogen desorption rates, where copper fins achieve up to 67.6 % reduction in time to reach equilibrium at 1 bar compared to the reactor without fins. Similarly, AlN and AlSi10Mg fins exhibit a 64 % and 62 % reduction, respectively, highlighting their contributions to improved reactor performance. This research contributes to the advancement of hydrogen storage technologies by offering insights into the selection of fin materials and design for efficient.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 118-132"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in carbon nanotube-supported non-noble metal electrocatalysts for urea oxidation reaction","authors":"Irsa Tariq ,&nbsp;Waheed Iqbal ,&nbsp;Ali Haider ,&nbsp;Mingming Ma","doi":"10.1016/j.ijhydene.2025.05.382","DOIUrl":"10.1016/j.ijhydene.2025.05.382","url":null,"abstract":"<div><div>Addressing global energy and environmental challenges demands efficient, durable electrocatalysts for urea oxidation reaction (UOR). Non-noble transition metal-based materials have emerged as promising UOR catalysts due to their abundance and tuneable catalytic properties, yet suffer from stability issues, conductivity limitations, and particle agglomeration. Integrating these UOR catalysts with carbon nanotubes (CNT) presents an innovative solution, leveraging CNT's exceptional electrical/thermal conductivity, high surface area, anisotropic structure and tunable surface/interface properties. This review highlights recent advances in CNT-supported UOR electrocatalysts encompassing metal alloys, MOFs, hydroxides/oxides, chalcogenides, phosphides, and carbides. We systematically analyze synthesis strategies, morphological control, and electrochemical performance enhancement mechanisms, emphasizing the critical role of CNT's structural/electronic characteristics in catalytic optimization. Current challenges regarding long-term stability, cost-effective fabrication, and mechanistic understanding are discussed, alongside future research directions for developing next-generation UOR systems. This comprehensive analysis provides valuable insights for designing high-performance electrocatalysts for UOR, serving as a strategic roadmap for researchers in sustainable energy conversion technologies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"142 ","pages":"Pages 40-53"},"PeriodicalIF":8.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the emission values of butane, methane and methane-hydrogen mixtures used in household stove burners","authors":"Ahmet Taylan Öztürk ,&nbsp;Dinçer Akal ,&nbsp;Ugur Akyol","doi":"10.1016/j.ijhydene.2025.05.355","DOIUrl":"10.1016/j.ijhydene.2025.05.355","url":null,"abstract":"<div><div>Air pollution is an increasingly significant environmental issue worldwide, primarily driven by the use of fossil fuels, which pose a serious threat to environmental health. Fossil fuels contribute to the accumulation of greenhouse gases in the atmosphere, thereby accelerating climate change and leading to air pollution that adversely affects human health. Natural gas is widely used for domestic purposes and has been utilized in many countries for decades due to electricity prices and public habits. However, the emission levels associated with household natural gas heating systems, particularly gas stoves, have become a critical factor directly impacting human health. Therefore, enhancing the efficiency of gas stoves and reducing waste emissions could play a crucial role in combating global air pollution. This study aims to investigate the combustion performance of butane, methane, and methane-hydrogen mixture gases used in household gas stoves. The primary objective is to determine the levels of carbon dioxide (CO₂) and carbon monoxide (CO) emissions released into the environment after combustion and to compare the environmental impacts of different fuel mixtures. Conducted through experimental and numerical analyses, this study reveals the effects of hydrogen mixtures on methane gas emissions. The combustion test results indicate that the CO level measured during butane combustion is 0.30 ppm, whereas this level decreases to 0.13 ppm when hydrogen-mixed methane gas is used. These findings suggest that hydrogen mixtures have the potential not only to enhance combustion efficiency but also to reduce harmful emissions. Furthermore, this study provides valuable insights into the necessity of transitioning toward environmentally friendly and sustainable fuel mixtures in future energy systems. Ensuring energy efficiency while minimizing negative environmental impacts is considered a critical step in addressing air pollution, particularly in household heating systems.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 88-98"},"PeriodicalIF":8.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy transition in smart grids: Combining hydrogen, methanation and electric vehicles for sustainable heat and power","authors":"Abdullah Kürşat Aktar","doi":"10.1016/j.ijhydene.2025.05.363","DOIUrl":"10.1016/j.ijhydene.2025.05.363","url":null,"abstract":"<div><div>Rising environmental concerns necessitate the transition of various sectors' energy needs to electrical energy. The major energy transformation target can be realized by minimizing the disadvantages of renewable energy systems, such as intermittency, with various energy storage methods. In this study, the operations of a residential area consisting of 60 houses, each with photovoltaic system and electric vehicle, on energy balancing in a smart grid environment are investigated. Besides, hydrogen components in the system, including the electrolysis unit, H₂ tank, and fuel cell, enable storage and electricity generation. To meet the regional heating demand, a boiler fed from two different pipelines and a methanation unit that produces environmentally friendly green methane are used. A mixed-integer optimization algorithm is applied to evaluate the designed system under six different case studies involving multi-objective optimization and in various price environments. In all cases, electricity, heating, and transportation demands are technically met, while economic outcomes vary depending on the prioritized objective. The best result in terms of costs is achieved as €177.45 in Case 2, a 46.49 % decrease compared to Base Case.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"140 ","pages":"Pages 787-802"},"PeriodicalIF":8.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}