Australia
Towards Safer Hydrogen Refuelling Stations: Insights from Computational Fluid Dynamics LH2 Leakage
May 2024
Publication
The transition to a sustainable future with hydrogen as a key energy carrier necessitates a comprehensive understanding of the safety aspects of hydrogen including liquid hydrogen (LH₂). Hence this study presents a detailed computational fluid mechanics analysis to explore accidental LH₂ leakage and dispersion in a hydrogen refuelling station under varied conditions which is essential to prevent fire and explosion. The correlated impact of influential param Read More
Challenges and Opportunities for Hydrogen Production from Microalgae
Nov 2015
Publication
The global population is predicted to increase from ~7.3 billion to over 9 billion people by 2050.Together with rising economic growth this is forecast to result in a 50% increase in fueldemand which will have to be met while reducing carbon dioxide (CO 2 ) emissions by 50–80%to maintain social political energy and climate security. This tension between rising fuel demandand the requirement for rapid global decarbonization highlights the need to fast-track th Read More
A High-performance Capillary-fed Electrolysis Cell Promises More Cost-competitive Renewable Hydrogen
Mar 2022
Publication
Renewable or green hydrogen will play a critical role in the decarbonisation of hard-to-abate sectors and will therefore be important in limiting global warming. However renewable hydrogen is not cost-competitive with fossil fuels due to the moderate energy efficiency and high capital costs of traditional water electrolysers. Here a unique concept of water electrolysis is introduced wherein water is supplied to hydrogen- and oxygen-evolving electro Read More
Research and Development of Hydrogen Carrier Based Solutions for Hydrogen Compression and Storage
Aug 2022
Publication
Martin Dornheim,
Lars Baetcke,
Etsuo Akiba,
Jose-Ramón Ares,
Tom Autrey,
Jussara Barale,
Marcello Baricco,
Kriston Brooks,
Nikolaos Chalkiadakis,
Véronique Charbonnier,
Steven Christensen,
José Bellosta von Colbe,
Mattia Costamagna,
Erika Michela Dematteis,
Jose-Francisco Fernández,
Thomas Gennett,
David Grant,
Tae Wook Heo,
Michael Hirscher,
Katherine Hurst,
Mykhaylo V. Lototskyy,
Oliver Metz,
Paola Rizzi,
Kouji Sakaki,
Sabrina Sartori,
Emmanuel Stamatakis,
Alastair D. Stuart,
Athanasios Stubos,
Gavin Walker,
Colin Webb,
Brandon Wood,
Volodymyr A. Yartys and
Emmanuel Zoulias
Industrial and public interest in hydrogen technologies has risen strongly recently as hydrogen is the ideal means for medium to long term energy storage transport and usage in combination with renewable and green energy supply. In a future energy system the production storage and usage of green hydrogen is a key technology. Hydrogen is and will in future be even more used for industrial production processes as a reduction agent or for the productio Read More
Geomechanics of Hydrogen Storage in a Depleted Gas Field
Feb 2024
Publication
We perform a simulation study of hydrogen injection in a depleted gas reservoir to assess the geomechanical impact of hydrogen storage relative to other commonly injected gases (methane CO2). A key finding is that the differences in hydrogen density compressibility viscosity and thermal properties compared to the other gases result in significantly less thermal perturbation at reservoir level. The risks of fault reactivation and wellbore fractures due to th Read More
Artificial Intelligence for Hydrogen-Enabled Integrated Energy Systems: A Systematic Review
Aug 2024
Publication
Hydrogen-enabled Integrated Energy Systems (H-IES) stand out as a promising solution with the potential to replace current non-renewable energy systems. However their development faces challenges and has yet to achieve widespread adoption. These main challenges include the complexity of demand and supply balancing dynamic consumer demand and challenges in integrating and utilising hydrogen. Typical energy management strategies within t Read More
Uncovering an Emerging Policy Direction for Australian Energy and Future Fuels Using a "Participatory Decision-Making" Framework
Aug 2024
Publication
Introduction: An online deliberative engagement process was undertaken with members of the general public to understand what they value or would like to change about the energy system within the broader context of decarbonizing Australia's energy networks identifying a role for future fuels (hydrogen and biogas). Citizens developed a set of principles that could guide Australia's path toward a low-carbon energy future reflecting on expectations they Read More
Large-scale Production of Green Hydrogen from Solar Energy in Australia: Operation and Control of a Multi-unit PEM Electrolyser System
Dec 2024
Publication
Large-scale production of hydrogen using clean electricity from renewable energy sources (RESs) is gaining more momentum in attempts to foster the growth of the nascent hydrogen energy market. However the inherited intermittency of RESs constitutes a significant challenge for the reliable and economic operation of electrolysers and consequently the overall hydrogen production plant. This paper proposes a power allocation control strategy to reg Read More
Modelling and Simulation of an Integrated Coupled Reactor for Hydrogen Production and Carbon Dioxide Utilisation in an Integrated Fuel Cell Power System
Dec 2024
Publication
In today’s world the need for sustainable energy solutions is paramount to address the ongoing crisis of increasing greenhouse gas emissions and global warming. Industries heavily reliant on fossil fuels must explore alternative energy sources. Hydrogen with its high heating value and zero direct emissions has emerged as a promising fuel for the future. Electrolytic hydrogen production has gained significance as it enables demand-side response grid stab Read More
Hydrogen Addition to a Commercial Self-aspirating Burner and Assessment of a Practical Burner Modification Strategy to Improve Performance
Jul 2023
Publication
The ability for existing burners to operate safely and efficiently on hydrogen-blended fuels is a primary concern for the many industries looking to adopt hydrogen as an alternative fuel. This study investigates the efficacy of increasing fuel injector diameter as a simple modification strategy to extend the hydrogen-blending limits before flashback. The collateral effects of this modification are quantified with respect to a set of key performance criteri Read More
Decarbonisation and Hydrogen Integration of Steel Industries: Recent Development, Challenges and Technoeconomics Analysis
Feb 2023
Publication
The steel industry is one of the major sources of greenhouse gas emissions with significant energy demand. Currently 73% of the world’s steel is manufactured through the coal-coke-based blast furnace-basic oxygen furnace route (BF-BOF) emitting about two tonnes of CO2 per tonne of steel produced. This review reports the major technologies recent developments challenges and technoeconomic comparison of steelmaking technol o Read More
Integrating Alkaline Electrolysis with Oxyfuel Combustion for Hydrogen and Electricity Production
Feb 2024
Publication
The present study explores the potential of integrating the NET Zero Cycle (NZC) with hydrogen production by alkaline electrolyzers. To achieve this an Aspen Plus model was developed for the NZC and its accuracy was first confirmed by comparing it with literature data. The creation of a model for an alkaline electrolyzer was achieved using Aspen Custom Modeler and later imported into Aspen Plus. A comprehensive simulation was conducted in Aspen Read More
Freshwater Supply for Hydrogen Production: An Underestimated Challenges
Jun 2024
Publication
This paper presents a thorough critical literature review aimed at understanding the challenges associated with freshwater supply associated with rapidly growing global hydrogen economies. The review has been prompted by the fact that the hydrogen production projected for 2030 will create at least an additional demand of 2.1 billion cubic meters for freshwater which needs to be addressed to support sustainable development of emerging hydro Read More
Recent Progress and Techno-economic Analysis of Liquid Organic Hydrogen Carriers for Australian Renewable Energy Export - A Critical Review
Jan 2024
Publication
Hydrogen as a primary carbon-free energy carrier is confronted by challenges in storage and transportation. However liquid organic hydrogen carriers (LOHCs) present a promising solution for storing and transporting hydrogen at ambient temperature and atmospheric pressure. Unlike circular energy carriers such as methanol ammonia and synthetic natural gas LOHCs do not produce by-products during hydrogen recovery. LOHCs only act as hy Read More
A 500 kW Hydrogen Fuel Cell-powered Vessel: From Concept to Sailing
Sep 2024
Publication
This paper presents the “Three Gorges Hydrogen Boat No. 1” a novel green hydrogen-powered vessel that has been successfully delivered and is currently sailing. This vessel integrated with a hydrogen production and bunkering station at its dedicated dock achieves zero-carbon emissions. It stores 240 kg of 35 MPa gaseous hydrogen and has a fuel cell system rated at 500 kW. We analysed the engineering details of the marine hydrogen system including Read More
Techno-economics of Renewable Hydrogen Export: A Case Study for Australia-Japan
Jul 2024
Publication
The shift from fossil fuels to clean energy carriers such as renewable H2 is imminent. Consequently a global H2 market is taking shape involving countries with limited or insufficient energy resources importing from renewable-rich countries. This study evaluates the techno-economics of renewable hydrogen (H2) export in a globally significant scenario in which Australia exports to Japan. To gain insight into the immediate realisable future the base year Read More
Empowering Fuel Cell Electric Vehicles Towards Sustainable Transportation: An Analytical Assessment, Emerging Energy Management, Key Issues, and Future Research Opportunities
Oct 2024
Publication
Fuel cell electric vehicles (FCEVs) have received significant attention in recent times due to various advantageous features such as high energy efficiency zero emissions and extended driving range. However FCEVs have some drawbacks including high production costs; limited hydrogen refueling infrastructure; and the complexity of converters controllers and method execution. To address these challenges smart energy management involving appropriate con Read More
Comprehensive Review of Development and Applications of Hydrogen Energy Technologies in China for Carbon Neutrality: Technology Advances and Challenges
Jul 2024
Publication
Concerning the transition from a carbon-based energy economy to a renewable energy economy hydrogen is considered an essential energy carrier for efficient and broad energy systems in China in the near future. China aims to gradually replace fossil fuel-based power generation with renewable energy technologies to achieve carbon neutrality by 2060. This ambitious undertaking will involve building an industrial production chain spanning the pro Read More
Economics of Renewable Hydrogen Production Using Wind and Solar Energy: A Case Study for Queensland, Australia
Dec 2023
Publication
This study presents a technoeconomic analysis of renewables-based hydrogen production in Queensland Australia under Optimistic Reference and Pessimistic scenarios to address uncertainty in cost predictions. The goal of the work was to ascertain if the target fam-gate cost of AUD 3/kg (approx. USD 2/kg) could be reached. Economies of scale and the learning rate concept were factored into the economic model to account for the effect of scale-up and co Read More
Decarbonizing Combustion with Hydrogen Blended Fuels: An Exploratory Study of Impact of Hydrogen on Hydrocarbon Autoignition
Jan 2024
Publication
Blending hydrogen to existing fuel mix represents a major opportunity for decarbonisation. One important consideration for this application is the chemical interaction between hydrogen and hydrocarbon fuels arising from their different combustion chemistries and varying considerably with combustion processes. This paper conducted an exploratory study of hydrogen’s impact on autoignition in several combustion processes where hydrogen is us Read More
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