Japan
Economic Dispatch Model of Nuclear High-Temperature Reactor with Hydrogen Cogeneration in Electricity Market
Dec 2021
Publication
Hydrogen produced without carbon emissions could be a useful fuel as nations look to decarbonize their electricity transport and industry sectors. Using the iodine–sulfur (IS) cycle coupled with a nuclear heat source is one method for producing hydrogen without the use of fossil fuels. An economic dispatch model was developed for a nuclear-driven IS system to determine hydrogen sale prices that would make such a system profitable. The system studied is Read More
Numerical Analysis on the Mechanism of Blast Mitigation by Water Droplets
Sep 2021
Publication
Hydrogen has a high risk of ignition owing to its extremely low ignition energy and wide range of flammability. Therefore acquiring parameters relating to safe usage is of particular interest. The ignition of hydrogen generates combustion processes such as detonation and deflagration which may produce a blast wave. The severity of injuries sustained from a blast wave is determined by its strength. To reduce the physical hazards caused by explosion there Read More
Fundamentals, Materials, and Machine Learning of Polymer Electrolyte Membrane Fuel Cell Technology
Jun 2020
Publication
Polymer electrolyte membrane (PEM) fuel cells are electrochemical devices that directly convert the chemical energy stored in fuel into electrical energy with a practical conversion efficiency as high as 65%. In the past years significant progress has been made in PEM fuel cell commercialization. By 2019 there were over 19000 fuel cell electric vehicles (FCEV) and 340 hydrogen refueling stations (HRF) in the U.S. (~8000 and 44 respectively) Japan (~3600 and Read More
Economic Analysis of a Photovoltaic Hydrogen Refueling Station Based on Hydrogen Load
Sep 2023
Publication
With the goal of achieving “carbon peak in 2030 and carbon neutrality in 2060” as clearly proposed by China the transportation sector will face long–term pressure on carbon emissions and the application of hydrogen fuel cell vehicles will usher in a rapid growth period. However true “zero carbon” emissions cannot be separated from “green hydrogen”. Therefore it is of practical significance to explore the feasibility of renewable energy hydrogen prod Read More
Phasing Out Steam Methane Reformers with Water Electrolysis in Producing Renewable Hydrogen and Ammonia: A Case Study Based on the Spanish Energy Markets
Jul 2023
Publication
Deploying renewable hydrogen presents a significant challenge in accessing off-takers who are willing to make long-term investments. To address this challenge current projects focus on large-scale deployment to replace the demand for non-renewable hydrogen particularly in ammonia synthesis for fertiliser production plants. The traditional process involving Steam Methane Reformers (SMR) connected to Haber-Bosch synthesis could potentiall Read More
Selected Materials and Technologies for Electrical Energy Sector
Jun 2023
Publication
Ensuring the energy transition in order to decrease CO2 and volatile organic compounds emissions and improve the efficiency of energy processes requires the development of advanced materials and technologies for the electrical energy sector. The article reviews superconducting materials functional nanomaterials used in the power industry mainly due to their magnetic electrical optical and dielectric properties and the thin layers of amorphou Read More
Accelerating the Green Hydrogen Revolution: A Comprehensive Analysis of Technological Advancements and Policy Interventions
Apr 2024
Publication
Promoting green hydrogen has emerged as a pivotal discourse in the contemporary energy landscape driven by pressing environmental concerns and the quest for sustainable energy solutions. This paper delves into the multifaceted domain of C-Suite issues about green hydrogen encompassing both technological advancements and policy considerations. The question of whether green hydrogen is poised to become the focal point of the upcom Read More
Future Swiss Energy Economy: The Challenge of Storing Renewable Energy
Feb 2022
Publication
Fossil fuels and materials on Earth are a finite resource and the disposal of waste into the air on land and into water has an impact on our environment on a global level. Using Switzerland as an example the energy demand and the technical challenges and the economic feasibility of a transition to an energy economy based entirely on renewable energy were analyzed. Three approaches for the complete substitution of fossil fuels with renewable energ Read More
Advances in Hydrogen Storage Materials: Harnessing Innovative Technology, from Machine Learning to Computational Chemistry, for Energy Storage Solutions
Mar 2024
Publication
The demand for clean and sustainable energy solutions is escalating as the global population grows and economies develop. Fossil fuels which currently dominate the energy sector contribute to greenhouse gas emissions and environmental degradation. In response to these challenges hydrogen storage technologies have emerged as a promising avenue for achieving energy sustainability. This review provides an overview of recent advancements i Read More
Renewable Energy Pathways toward Accelerating Hydrogen Fuel Production: Evidence from Global Hydrogen Modeling
Dec 2022
Publication
Fossil fuel consumption has triggered worries about energy security and climate change; this has promoted hydrogen as a viable option to aid in decarbonizing global energy systems. Hydrogen could substitute for fossil fuels in the future due to the economic political and environmental concerns related to energy production using fossil fuels. However currently the majority of hydrogen is produced using fossil fuels particularly natural gas w Read More
An Analysis of the Potential of Hydrogen Energy Technology on Demand Side Based on a Carbon Tax: A Case Study in Japan
Dec 2022
Publication
Hydrogen energy is considered one of the main measures of zero carbonization in energy systems but high equipment and hydrogen costs hinder the development of hydrogen energy technology. The objectives of this study are to quantify the environmental advantages of hydrogen energy through a carbon tax and study the application potential of hydrogen energy technology in a regional distributed energy system (RDES). In this study various Read More
A Systematic Review of the Techno-economic Assessment of Various Hydrogen Production Methods of Power Generation
Oct 2022
Publication
Hydrogen is a low or zero-carbon energy source that is considered the most promising and potential energy carrier of the future. In this study the energy sources feedstocks and various methods of hydrogen production from power generation are comparatively investigated in detail. In addition this study presents an economic assessment to evaluate cost-effectiveness based on different economic indicators including sensitivity analysis and uncertai Read More
Transition Analysis of Budgetary Allocation for Projects on Hydrogen-Related Technologies in Japan
Oct 2020
Publication
Hydrogen technologies are promising candidates of new energy technologies for electric power load smoothing. However regardless of long-term public investment hydrogen economy has not been realized. In Japan the National Research and Development Institute of New Energy and Industrial Technology Development Organization (NEDO) a public research-funding agency has invested more than 200 billion yen in the technical development of hydro Read More
Reduction in Greenhouse Gas and Other Emissions from Ship Engines: Current Trends and Future Options
Nov 2022
Publication
The impact of ship emission reductions can be maximised by considering climate health and environmental effects simultaneously and using solutions fitting into existing marine engines and infrastructure. Several options available enable selecting optimum solutions for different ships routes and regions. Carbon-neutral fuels including low-carbon and carbon-negative fuels from biogenic or non-biogenic origin (biomass waste renewable hydrogen) could rese Read More
Techno-Economic Analysis of Grid-Connected Hydrogen Production via Water Electrolysis
Mar 2024
Publication
As the global energy landscape transitions towards a more sustainable future hydrogen has emerged as a promising energy carrier due to its potential to decarbonize various sectors. However the economic competitiveness of hydrogen production by water electrolysis strongly depends on renewable energy source (RES) availability. Thus it is necessary to overcome the challenges related to the intermittent nature of RESs. This paper presents a compre Read More
Influence of Renewable Energy Power Fluctuations on Water Electrolysis for Green Hydrogen Production
Nov 2022
Publication
The development of renewable energy technologies is essential to achieve carbon neutrality. Hydrogen can be stably stored and transported in large quantities to maximize power utilization. Detailed understanding of the characteristics and operating methods of water electrolysis technologies in which naturally intermittent fluctuating power is used directly is required for green hydrogen production because fluctuating power-driven water electrol Read More
Study of Heat Loss Mechanism in Argon-circulated Hydrogen Engine Combustion Chamber Wall Surface Conditions
Jul 2022
Publication
Hydrogen fuel in internal combustion engine gives a very big advantage to the transportation sector especially in solving the greenhouse emission problem. However there are only few research discovered the ability of argon as a working gas in hydrogen combustion in internal combustion engine. The high temperature rises from the argon compression tend to result in heat loss problem. This research aims to study the heat loss mechanism on wall s Read More
Life Cycle Costing Approaches of Fuel Cell and Hydrogen Systems: A Literature Review
Apr 2023
Publication
Hydrogen is a versatile energy carrier which can be produced from variety of feedstocks stored and transported in various forms for multi-functional end-uses in transportation energy and manufacturing sectors. Several regional national and supra-national climate policy frameworks emphasize the need value and importance of Fuel cell and Hydrogen (FCH) technologies for deep and sector-wide decarbonization. Despite these multi-faceted advantages f Read More
Challenges Toward Achieving a Successful Hydrogen Economy in the US: Potential End-use and Infrastructure Analysis to the Year 2100
Jul 2022
Publication
Fossil fuels continue to exacerbate climate change due to large carbon emissions resulting from their use across a number of sectors. An energy transition away from fossil fuels seems inevitable and energy sources such as renewables and hydrogen may provide a low carbon alternative for the future energy system particularly in large emitting nations such as the United States. This research quantifies and maps potential hydrogen fuel distribution path Read More
Potential Domestic Energy System Vulnerabilities from Major Exports of Green Hydrogen: A Case Study of Australia
Aug 2023
Publication
Australia has clear aspirations to become a major global exporter of hydrogen as a replacement for fossil fuels and as part of the drive to reduce CO2 emissions as set out in the National Hydrogen Strategy released in 2019 jointly by the federal and state governments. In 2021 the Australian Energy Market Operator specified a grid forecast scenario for the first time entitled “hydrogen superpower”. Not only does Australia hope to capitalise on the em Read More
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