International Journal of Hydrogen Energy最新文献_第7页

Sensor-efficient, data-driven estimation of hydrogen leak source terms for indoor industrial and community systems 用于室内工业和社区系统的氢泄漏源术语的传感器效率，数据驱动估计

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-23 DOI: 10.1016/j.ijhydene.2026.156184

Ang Li, Ziqiang Lang, Chuantao Ni, Bing Wang, Chenxi Cao, Wenli Du, Feng Qian

{"title":"Sensor-efficient, data-driven estimation of hydrogen leak source terms for indoor industrial and community systems","authors":"Ang Li, Ziqiang Lang, Chuantao Ni, Bing Wang, Chenxi Cao, Wenli Du, Feng Qian","doi":"10.1016/j.ijhydene.2026.156184","DOIUrl":"10.1016/j.ijhydene.2026.156184","url":null,"abstract":"<div><div>Hydrogen is central to a low-carbon energy future, yet its high diffusivity and low density increase the risk of leakage, accumulation in confined spaces, and explosion. Accurate source term estimation (STE) based on sensor data is therefore critical for safe hydrogen operations. However, conventional STE methods require more sensors than potential leak sources—an assumption impractical for hydrogen systems, where extensive infrastructure and hydrogen's small molecular size create far more possible leak points than deployable sensors. Here, we present a sensor-efficient, data-driven STE framework that enables reliable leak localization and quantification under sparse sensing conditions. By integrating physics-informed modeling with data-driven inference, the method reconstructs leak source terms from limited hydrogen concentration measurements. The framework is validated using both high-fidelity computational fluid dynamics simulations of a hydrogen-fueled turbine generator and controlled experiments in a fuel cell vehicle garage. Remarkably, the STE is theoretically achievable with as few as two sensors, significantly reducing sensing requirements compared to existing approaches. This work provides a practical and scalable solution for real-time hydrogen leak source reconstruction in indoor industrial and community environments, advancing safety management and supporting the broader deployment of hydrogen energy systems.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156184"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572160","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}

引用次数: 0

Artificial intelligence-based modeling and multi-objective optimization of industrial hydrogen production with minimization of CO and CO2 generation 基于人工智能的工业制氢建模与多目标优化

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-24 DOI: 10.1016/j.ijhydene.2026.156210

Parsia Amrolalaei, Elmira Nozari, Mahdi Askari, Philip L. Fosbøl, Hooman Fatoorehchi

{"title":"Artificial intelligence-based modeling and multi-objective optimization of industrial hydrogen production with minimization of CO and CO2 generation","authors":"Parsia Amrolalaei, Elmira Nozari, Mahdi Askari, Philip L. Fosbøl, Hooman Fatoorehchi","doi":"10.1016/j.ijhydene.2026.156210","DOIUrl":"10.1016/j.ijhydene.2026.156210","url":null,"abstract":"<div><div>This study presents an integrated approach for modeling and multi-objective optimization of the reaction section of an industrial steam methane reforming hydrogen production plant. The process was simulated in Aspen Plus using a detailed kinetic model and validated against industrial data. Response surface methodology and an artificial neural network (ANN) were developed as surrogate models and coupled with the NSGA-II algorithm to maximize hydrogen production while minimizing CO and CO<sub>2</sub> emissions. The ANN achieved predictive accuracy (R<sup>2</sup> > 0.999). Sobol global sensitivity analysis identified reformer inlet temperature and steam-to-methane ratio as the most influential variables, while less significant parameters were fixed to reduce optimization dimensionality. Both optimization approaches converged to a similar operating region, yielding hydrogen production rates of 4300–4600 mol h<sup>−1</sup> and CO + CO<sub>2</sub> production rates of 900–980 mol h<sup>−1</sup>. Validation using Aspen Plus confirmed the reliability of the proposed method, with the ANN-based approach providing the highest prediction accuracy.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156210"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Mo content on hydrogen storage properties and cyclic stability of BCC-type TiCrMo alloys Mo含量对bcc型TiCrMo合金储氢性能和循环稳定性的影响

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-26 DOI: 10.1016/j.ijhydene.2026.156197

Hongmei Cai, Yakun Zhang, Yaying Cao, Di Wan, Yumeng Zhao, Yunfei Xue

{"title":"Effect of Mo content on hydrogen storage properties and cyclic stability of BCC-type TiCrMo alloys","authors":"Hongmei Cai, Yakun Zhang, Yaying Cao, Di Wan, Yumeng Zhao, Yunfei Xue","doi":"10.1016/j.ijhydene.2026.156197","DOIUrl":"10.1016/j.ijhydene.2026.156197","url":null,"abstract":"<div><div>BCC-type Ti–Cr–Mo alloys are low-cost and promising alternatives to vanadium-based hydrogen storage alloys, but their insufficient cyclic stability severely limits practical applications. In this work, single-phase BCC Ti–Cr–Mo alloys with different Mo contents were fabricated by vacuum arc melting combined with water quenching. The results indicate that increasing Mo content significantly enhances the structural stability of the alloys. Synergistically regulated by lattice parameters and bulk modulus, the maximum hydrogen storage capacity decreases from 3.5 wt% to 3.09 wt%, while the capacity retention after 50 cycles increases from 74.6% to 88.9%. HR-TEM and TDS analyses confirm that Mo addition effectively suppresses local amorphization and irreversible hydrogen trapping. Proper adjustment of Mo content can significantly improve cyclic stability while maintaining favorable hydrogen storage performance, providing an important basis for the compositional design of high-performance vanadium-free BCC hydrogen storage alloys.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156197"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572005","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}

引用次数: 0

Atomic-scale insights into tritium speciation and interfacial behavior at molten salt/graphite and molten salt/alloy interfaces 熔盐/石墨和熔盐/合金界面上氚形态和界面行为的原子尺度洞察

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-24 DOI: 10.1016/j.ijhydene.2026.156188

Linbing Jiang, Shuying Lin, Xiaobin Zhou, Ke Deng, Guo Yang, Youshi Zeng, Wenguan Liu

{"title":"Atomic-scale insights into tritium speciation and interfacial behavior at molten salt/graphite and molten salt/alloy interfaces","authors":"Linbing Jiang, Shuying Lin, Xiaobin Zhou, Ke Deng, Guo Yang, Youshi Zeng, Wenguan Liu","doi":"10.1016/j.ijhydene.2026.156188","DOIUrl":"10.1016/j.ijhydene.2026.156188","url":null,"abstract":"<div><div>Tritium interfacial behavior is governed by its chemical speciation and the surface microstructure of structural materials. On-the-fly machine-learning molecular dynamics was used to examine tritium speciation in molten FLiBe and its interaction with representative surfaces. In FLiBe, H<sub>2</sub> remains molecular under neutral conditions with an H–H distance of ∼0.77 Å, whereas oxidizing conditions convert H<sub>2</sub> into HF-like species with a bond length of ∼1.05 Å. Under reducing conditions, Be-associated hydride-like H forms with a negative charge. At interfaces, pristine graphite provides reversible C–H adsorption, while vacancies and graphite edges form stronger C–H traps with bond lengths of 1.13-1.19 Å. Edge fluorination competes with tritium trapping, and NiMoCr(111) promotes mobile hollow-site H adsorption and Cr–F association. Pristine and vacancy graphite show preferential affinity for neutral H, whereas graphite edges and NiMoCr(111) exhibit weak tritium-species selectivity. These results identify speciation- and microstructure-dependent pathways for tritium retention and permeation in molten salt reactors.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156188"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572082","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}

引用次数: 0

Solar water-splitting devices: Architectures, design principles, and scale-up challenges 太阳能水分解装置：架构、设计原则和扩大规模的挑战

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-25 DOI: 10.1016/j.ijhydene.2026.156169

Ying Wang, Hao Wang, Weilong Qin

{"title":"Solar water-splitting devices: Architectures, design principles, and scale-up challenges","authors":"Ying Wang, Hao Wang, Weilong Qin","doi":"10.1016/j.ijhydene.2026.156169","DOIUrl":"10.1016/j.ijhydene.2026.156169","url":null,"abstract":"<div><div>Solar-driven water splitting is a promising strategy for converting abundant solar energy into green hydrogen, but its practical deployment is limited not only by materials performance but also by insufficient device-level engineering. Although substantial progress has been made in developing light absorbers and catalysts, less attention has been paid to the configuration, integration, and operational optimization of complete systems. Unlike previous reviews that have mainly focused on photocatalysts, photoelectrodes, electrocatalysts, or reaction mechanisms, this review emphasizes the device configuration, system integration, and scale-up constraints of complete solar water-splitting systems. By comparing particulate photocatalysis, photoelectrochemical systems, and photovoltaic-electrochemical architectures from a device-level perspective, we highlight how light management, ohmic-loss mitigation, gas separation, mass transport, operational stability, and cost considerations govern the translation of material-level advances into practical solar hydrogen production. Finally, the need for standardized and scalable device architectures is emphasized.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156169"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572165","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}

引用次数: 0

Bypass regulation strategy for an intermediate fluid thermal management system of a hydrogen turboprop engine at ground idle 氢涡桨发动机地面怠速时中间流体热管理系统的旁通调节策略

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-25 DOI: 10.1016/j.ijhydene.2026.156189

Yilin Ye, Shanlin Liu, Xin Gong, Ruxin Zhong, Shicong Zheng, Jun Cao, Weihua Yang

{"title":"Bypass regulation strategy for an intermediate fluid thermal management system of a hydrogen turboprop engine at ground idle","authors":"Yilin Ye, Shanlin Liu, Xin Gong, Ruxin Zhong, Shicong Zheng, Jun Cao, Weihua Yang","doi":"10.1016/j.ijhydene.2026.156189","DOIUrl":"10.1016/j.ijhydene.2026.156189","url":null,"abstract":"<div><div>Precise control of hydrogen supply temperature is critical for ensuring the safe and efficient operation of hydrogen aero-engines. This study investigates a thermal management system (TMS) employing intermediate cycle heat exchange (ICHE) and a bypass regulation strategy to mitigate the hydrogen temperature surge during ground idle. Evaluated via one-dimensional dynamic simulation and semi-physical experiments, the strategy shows that without regulation, an 82% reduction in hydrogen flow rate causes the supply temperature to surge to 606 K. By redistributing the intermediate fluid, the bypass strategy breaks localized thermal saturation, reducing the peak to 318 K, a 48% decrease, safely below the 323 K limit. A nitrogen-hydrogen surrogate correlation is established for safe experimentation. Experiments further reveal a critical nonlinear hysteresis: effective flow diversion begins only at 75% valve opening. This corrects idealized one-dimensional models that overestimate actuator response and underscores the need to incorporate actual valve characteristics for robust thermal management.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156189"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572100","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}

引用次数: 0

The multi-objective optimization of heat exchanger network in methanol steam reforming system for hydrogen production 甲醇蒸汽重整制氢系统换热器网络的多目标优化

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-23 DOI: 10.1016/j.ijhydene.2026.156022

Biao Hu, Pengyu Xu, Xusheng Zhang, Yifan Zhang, Decheng Xiang, Daofan Cao, Li Weng, Fenghao Jiang, Ke Liu

引用次数: 0

Thermoeconomic, parametric, exergoeconomic, and advanced exergy analyses of protonic ceramic fuel cell/gas turbine hybrid systems under different layouts and fuels 质子陶瓷燃料电池/燃气轮机混合系统在不同布局和燃料下的热经济性、参数经济性、燃烧经济性和先进的火用分析

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-24 DOI: 10.1016/j.ijhydene.2026.156176

Huichao Zhu, Pan Zhao, Zhaochun Shi, Ning Ma, Aijie Liu, Weihan Xue

{"title":"Thermoeconomic, parametric, exergoeconomic, and advanced exergy analyses of protonic ceramic fuel cell/gas turbine hybrid systems under different layouts and fuels","authors":"Huichao Zhu, Pan Zhao, Zhaochun Shi, Ning Ma, Aijie Liu, Weihan Xue","doi":"10.1016/j.ijhydene.2026.156176","DOIUrl":"10.1016/j.ijhydene.2026.156176","url":null,"abstract":"<div><div>Fuel cell/gas turbine hybrid systems represent highly efficient clean power generation technologies. Herein, the integration mechanisms of protonic ceramic fuel cells with gas turbines under H<sub>2</sub> and NH<sub>3</sub> fuels are investigated. Six integration modes are proposed and refined into 20 layouts, yielding 40 validated thermoeconomic models. Comprehensive thermoeconomic, parametric, exergoeconomic, and advanced exergy analyses are conducted, supported by a multi-indicator evaluation framework for systematic comparison. Results indicate that Layout A1 achieves the best overall performance (0.808/0.784 under equal/entropy weighting), while C4, D3, and E3 underperform. Twenty H<sub>2</sub>-fueled systems demonstrate higher thermodynamic performance but lower cost-effectiveness than NH<sub>3</sub>-fueled systems. The stack exhibits a high exergoeconomic factor (64.65%∼79.31%), while combustors and heat exchangers show lower values. Switching fuel improves non-stack component exergoeconomic factors and reduces unit exergy costs. Unlike conventional exergy analysis, average avoidable exergy destruction is 29.67% (H<sub>2</sub>-fueled) and 38.40% (NH<sub>3</sub>-fueled). Heat exchangers show high exogenous destruction, while others are endogenous-dominated.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156176"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572081","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}

引用次数: 0

Performance evaluation and optimization of a novel combined heating and power cogeneration system integrated with methane-fueled solid oxide fuel cell and modified Kalina cycle 甲烷燃料固体氧化物燃料电池与改良Kalina循环相结合的新型热电联产系统性能评价与优化

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-25 DOI: 10.1016/j.ijhydene.2026.156246

Xinxin Lei, Daifen Chen, Wei Kong, Yan Xiao, Zhenlong Fang, Jitian Han, Nikita Bazarkin, Huailiang You

{"title":"Performance evaluation and optimization of a novel combined heating and power cogeneration system integrated with methane-fueled solid oxide fuel cell and modified Kalina cycle","authors":"Xinxin Lei, Daifen Chen, Wei Kong, Yan Xiao, Zhenlong Fang, Jitian Han, Nikita Bazarkin, Huailiang You","doi":"10.1016/j.ijhydene.2026.156246","DOIUrl":"10.1016/j.ijhydene.2026.156246","url":null,"abstract":"<div><div>This study proposes a novel cogeneration system that integrates a methane-fueled solid oxide fuel cell, a gas turbine, and a modified Kalina cycle. Comprehensive mathematical model is developed, facilitating an in-depth analysis of thermodynamic, economic, and environmental performance. The results indicate that the proposed system generates an electrical output of 286.28 kW and a thermal output of 51.94 kW. The system energy and exergy efficiencies reach 72.09 % and 79.67 %, and the total system cost rate is 21.65 $/h, including a CO<sub>2</sub> emission cost of 1.93 $/h. Furthermore, multi-objective optimization reveals that under the first scenario, the system optimal energy and exergy efficiencies are improved to 76.87 % and 81.62 % (Point B), and the cost rate is reduced from 21.65 $/h to 19.78 $/h. Under the second scenario, the system total cost per unit exergy is reduced from 23.68 $/GJ to 22.18 $/GJ, with more modest efficiency gains.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"252 ","pages":"Article 156246"},"PeriodicalIF":9.2,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148572129","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}

引用次数: 0

Investigation of mixture formation time on stratified hydrogen combustion by acetone PLIF 丙酮PLIF分层氢燃烧混合气形成时间的研究

IF 9.2 2区工程技术

International Journal of Hydrogen Energy Pub Date : 2026-07-20 Epub Date: 2026-06-25 DOI: 10.1016/j.ijhydene.2026.156105

Youngmin Ki, Jungho Justin Kim, Heetae Yang, Joonsik Hwang, Choongsik Bae

引用次数: 0