China, People’s Republic
Mapping China's Hydrogen Energy City Clusters: Old and New Synergistic Effects
Feb 2025
Publication
Hydrogen is a pivotal driver of the green economy and clean energy transition and global efforts are underway to scale up hydrogen technology and its adoption. This study explores China’s hydrogen fuel cell vehicle (HFCV) city clusters policy launched in 2021 involving five clusters consisting of 44 cities to boost the country’s hydrogen economy. Drawing on cluster theory collaborative network literature and evolutionary economic geography we inves Read More
Optimal Economic Dispatch of Hydrogen Storage-Based Integrated Energy System with Electricity and Heat
Feb 2025
Publication
To enhance the accommodation capacity of renewable energy and promote the coordinated development of multiple energy this paper proposes a novel economic dispatch method for an integrated electricity–heat–hydrogen energy system on the basis of coupling three energy flows. Firstly we develop a mathematical model for the hydrogen energy system including hydrogen production storage and hydrogen fuel cells. Additionally a multi-device c Read More
Optimization Research on a Novel Community Integrated Energy System Based on Solar Energy Utilization and Energy Storage
Feb 2025
Publication
Integrated energy systems (IESs) are essential for enabling the energy transition in communities and reducing CO2 emissions. This paper proposes a novel IES that combines photovoltaic (PV) and solar thermal energy with coordinated electrical and thermal energy storage to meet the energy demands of residential communities. The system also incorporates hydrogen production for fuel cell vehicles. A dual-objective optimization model was develop Read More
Modulating Selectivity and Stability of the Direct Seawater Electrolysis for Sustainable Green Hydrogen Production
Feb 2025
Publication
Direct seawater electrolysis (DSE) has emerged as a compelling route to sustainable hydrogen production leveraging the vast global reserves of seawater. However the inherently complex composition of seawater—laden with halide ions multivalent cations (Mg2+ Ca2+) and organic/biological impurities—presents formidable challenges in maintaining both selectivity and durability. Chief among these obstacles is mitigating chloride corrosion and sup Read More
Study of Thermal Behavior on Multi-tank Cascade System for Ship-borne Hydrogen Storage Tank Using a New Design Configuration
Feb 2025
Publication
Hydrogen tanks (HT) with different connection modes are an integral part of the shipborne hydrogen fuel cell system. To ensure the safe and reliable operation of the shipborne multi-tank cascade system this study innovatively develops 3D models of four different connection modes for the shipborne multi-tank cascade system namely Type-22 Type-211 Type-121 and Type-112. Through computational fluid dynamics (CFD) numerical simulation the vari Read More
Operating Condition Recognition Based Fuzzy Power-Following Control Strategy for Hydrogen Fuel Cell Vehicles (HFCVs)
Feb 2025
Publication
To reduce hydrogen consumption by hydrogen fuel cell vehicles (HFCVs) an adaptive power-following control strategy based on gated recurrent unit (GRU) neural network operating condition recognition was proposed. The future vehicle speed was predicted based on a GRU neural network and a driving cycle condition recognition model was established based on k-means cluster analysis. By predicting the speed over a specific time horizon feature para Read More
Seawater Membrane Distillation Coupled with Alkaline Water Electrolysis for Hydrogen Production: Parameter Influence and Techno-Economic Analysis
Feb 2025
Publication
The production of green hydrogen requires renewable electricity and a supply of sustainable water. Due to global water scarcity using seawater to produce green hydrogen is particularly important in areas where freshwater resources are scarce. This study establishes a system model to simulate and optimize the integrated technology of seawater desalination by membrane distillation and hydrogen production by alkaline water electrolysis. Technical econo Read More
Optimal Dispatch for Electric-Heat-Gas Coupling Multi-Park Integrated Energy Systems via Nash Bargaining Game
Feb 2025
Publication
To improve the energy utilization rate and realize the low-carbon emission of a park integrated energy system (PIES) this paper proposes an optimal operation strategy for multiple PIESs. Firstly the electrical power cooperative trading framework of multiple PIESs is constructed. Secondly the hydrogen blending mechanism and carbon capture system and power-to-gas system joint operation model are introduced to establish the model of each PI Read More
Research on Coordinated Control of Power Distribution in Hydrogen-Containing Energy Storage Microgrids
Feb 2025
Publication
The integration of renewable energy sources such as wind and solar power at high proportions has become an inevitable trend in the development of power systems under the new power system framework. The construction of a microgrid system incorporating hydrogen energy storage and battery energy storage can leverage the complementary advantages of long-term and short-term hybrid storage achieving power and energy balance across mu Read More
Connotation, Innovation and Vision of "Carbon Neutrality"
Sep 2021
Publication
Global climate change caused by geological processes is one of the main causes of the 5 global mass extinctions in geological history. Human industrialization activities have caused serious damage to the ecosystem the greenhouse effect of atmospheric CO2 has intensified and the living environment is facing threats and challenges. Carbon neutrality is the active action and common goal of mankind in the face of the climate change crisis therefore probi Read More
Control Strategy for Hydrogen Production System using HTO-based Hybrid Electrolyzers
Feb 2025
Publication
Renewable energy-based water electrolysis for hydrogen production is an effective pathway to achieve green energy transition. However the intermittency and randomness of renewable energy pose numerous challenges to the safe and stable operation of hydrogen production systems with the wide power fluctuation adaptability and economic efficiency of electrolyzers being prominent issues. Hybrid electrolyzers combine the operational characterist Read More
Electric-thermal Collaborative System and Control for Hydrogen-fuel Cell Passenger Trains in the UK's Winter
Feb 2025
Publication
This paper presents a quantitative study on electric-thermal collaborative system for hydrogen-powered train reutilising the waste heat from fuel cell system for Heating Ventilation and Air Conditioning (HVAC). Firstly a hybrid train simulator is developed to simulate the train’s motion state. Heat generation from fuel cell is estimated using a fuel cell model while a detailed thermodynamic model for railway passenger coach is established to predict the heat dem Read More
The Multi-Objective Distributed Robust Optimization Scheduling of Integrated Energy Systems Considering Green Hydrogen Certificates and Low-Carbon Demand Response
Feb 2025
Publication
To address the issues of energy wastage and uncertainty impacts associated with high levels of renewable energy integration a multi-objective distributed robust low-carbon optimization scheduling strategy for hydrogen-integrated Integrated Energy Systems (IES) is proposed. This strategy incorporates a green hydrogen trading mechanism and lowcarbon demand response. Firstly to leverage the low-carbon and clean characteristics of hydrogen energy a Read More
The Role of Integrated Multi-Energy Systems Toward Carbon-Neutral Ports: A Data-Driven Approach Using Empirical Data
Feb 2025
Publication
Ports are critical hubs in the global supply chain yet they face mounting challenges in achieving carbon neutrality. Port Integrated Multi-Energy Systems (PIMESs) offer a comprehensive solution by integrating renewable energy sources such as wind photovoltaic (PV) hydrogen and energy storage with traditional energy systems. This study examines the implementation of a real-word PIMES showcasing its effectiveness in reducing energy consum Read More
Hydrogen Pipelines and Embrittlement in Gaseous Environments: An Up-to-date Review
Mar 2025
Publication
Pipelines represent the most economical and efficient means for transporting hydrogen in large volumes across vast distances contributing to accelerated realization of hydrogen economy. Nowadays the development of hydrogen pipeline projects including repurposing existing pipelines for hydrogen service has become a global interest especially in those major energy-producing and energy-consuming countries. However steel pipelines are susceptible to Read More
Comparison of Hydrogen Specification in National Standards in China
Oct 2019
Publication
Hydrogen specifications for different scenarios are various. Based on national standards for China a comparison of hydrogen specification standards is discussed in this paper including specification standards for industrial hydrogen pure hydrogen high pure hydrogen ultrapure hydrogen hydrogen for electronic industry and hydrogen for PEM FCVs. Hydrogen purity for electronic industry is greater than that for industrial hydrogen pure hydrogen Read More
Improved Sliding Mode Temperature Control of Hydrogen Fuel Cells for Multirotor Drones
Jan 2025
Publication
This paper investigates the temperature control problem in hydrogen fuel cells based on the improved sliding mode control method specifically within the context of multirotor drone applications. The study focuses on constructing a control-oriented nonlinear thermal model which serves as a foundation for the subsequent development of a practical temperature regulation approach. Initially a novel sliding mode control strategy is proposed which significa Read More
A Multi-Optimization Method for Capacity Configuration of Hybrid Electrolyzer in a Stand-Alone Wind-Photovoltaic-Battery System
Mar 2025
Publication
The coupling of renewable energy sources with electrolyzers under standalone conditions significantly enhances the operational efficiency and improves the costeffectiveness of electrolyzers as a technologically viable and sustainable solution for green hydrogen production. To address the configuration optimization challenge in hybrid electrolyzer systems integrating alkaline water electrolysis (AWE) and proton exchange membrane electrolysis (P Read More
Is the Promotion Policy for Hydrogen Fuel Cell Vehicles Effective? Evidence from Chinese Cities
Mar 2025
Publication
China has emerged as a global leader in promoting new energy vehicles; however the impact of these efforts on the commercial vehicle sector remains limited. Hydrogen fuel cell vehicles are crucial for improving the environmental performance of commercial vehicles in China. This study evaluates the effectiveness of China’s Hydrogen fuel cell vehicle policies. Firstly an evaluation index system for hydrogen fuel cell vehicle policies is established q Read More
Experimental Investigation of a 10 kW Photovoltaic Power System and Lithium Battery Energy Storage System for Off-grid Electro-hydrogen Coupling
Feb 2025
Publication
The burgeoning adoption of photovoltaic and wind energy has limitations of volatility and intermittency which hinder their application. Electro-hydrogen coupling energy storage systems emerge as a promising solution to address this issue. This technology combines renewable energy power generation with hydrogen production through water electrolysis and hydrogen fuel cell power generation effectively enabling the consumption and peak load man Read More
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