United Kingdom
Comparison of Game Theory and Genetic Algorithm Optimisation Schedulers for Diesel-hydrogen Powered System Reconfiguration
Feb 2025
Publication
The turbocharged dual-fuel engine is modeled and connected online to optimiser platform for transient input variation of input parameters decided by designed algorithms. This task is undertaken to enable intelligent control of the propulsion system including the Hydrogen injection instantly to reduce the thermal irreversibility. Therefore two methods of optimisation are applied to data collected from a turbocharged dual fuel operated propulsion sys Read More
On the Identification of Regulatory Gaps for Hydrogen as Maritime Fuel
Feb 2025
Publication
C. Georgopoulou,
C. Di Maria,
G. Di Ilio,
Viviana Cigolotti,
Mariagiovanna Minutillo,
Mosè Rossi,
B.P. Sullivan,
A. Bionda,
Markus Rautanen,
R. Ponzini,
F. Salvadore,
M. Alvarez-Cardozo,
P. Douska,
L. Koukoulopoulos,
G. Psaraftis,
G. Dimopoulos,
T. Wannemacher,
N. Baumann,
K. Mahosl,
M. Tome,
O. Noguero Torres,
F. Oikonomou,
A. Hamalainen,
F. Chillé,
Y. Papagiannopoulos and
N. Sakellaridis
The decarbonization of the maritime sector represents a priority in the energy policy agendas of the majority of Countries worldwide and the International Maritime Organization (IMO) has recently revised its strategy aiming for an ambitious zero-emissions scenario by 2050. In these regards there is a broad consensus on hydrogen as one of the most promising clean energy vectors for maritime transport and a key towards that goal. However to date a Read More
Cost-effect Scheduling of a Hydrogen-based Iron and Steel Plant Powered by a Grid-assisted Renewable Energy System
Feb 2025
Publication
The iron and steel industry contributes approximately 25% of global industrial CO2 emissions necessitating substantial decarbonisation efforts. Hydrogen-based iron and steel plants (HISPs) which utilise hydrogen-based direct reduction of iron ore followed by electric arc furnace steelmaking have attracted substantial research interest. However commercialisation of HISPs faces economic feasibility issues due to the high electricity costs of hydrogen p Read More
Assessment of Hydrogen Storage and Pipelines for Hydrogen Farm
Feb 2025
Publication
This paper presents a thorough initial evaluation of hydrogen gaseous storage and pipeline infrastructure emphasizing health and safety protocols as well as capacity considerations pertinent to industrial applications. As hydrogen increasingly establishes itself as a vital energy vector within the transition towards low-carbon energy systems the formulation of effective storage and transportation solutions becomes imperative. The investigation delves into th Read More
Electrolytic Hydrogen Production: How Green Must Green Be?
Jan 2025
Publication
Electrolytic hydrogen from renewable sources is central to many nations' net-zero emission strategies serving as a low-carbon alternative for traditional uses and enabling decarbonisation across multiple sectors. Current stringent policies in the EU and US are set to soon require hourly time-matching of renewable electricity generation used by electrolysers aimed at ensuring that hydrogen production does not cause significant direct or indirect emissions. Wh Read More
Quantifying Key Economic Uncertainties in the Cost of Trading Green Hydrogen
Mar 2025
Publication
In a fully decarbonized global energy system hydrogen is likely to be one of few energy vectors that can facilitate long-distance export of renewable energy. However because of divergent literature findings consensus is yet to be reached on the total supply chain costs of shipping hydrogen either as a cryogenic liquid or ammonia. To this end this article presents a detailed process systems-based economic analysis of a typical hydrogen value chain in 2050 Read More
A Multi-model Assessment of the Global Warming Potential of Hydrogen
Jun 2023
Publication
With increasing global interest in molecular hydrogen to replace fossil fuels more attention is being paid to potential leakages of hydrogen into the atmosphere and its environmental consequences. Hydrogen is not directly a greenhouse gas but its chemical reactions change the abundances of the greenhouse gases methane ozone and stratospheric water vapor as well as aerosols. Here we use a model ensemble of five global atmospheric c Read More
A Cost-Optimizing Analysis of Energy Storage Technologies and Transmission Lines for Decarbonizing the UK Power System by 2035
Mar 2025
Publication
The UK net zero strategy aims to fully decarbonize the power system by 2035 anticipating a 40–60% increase in demand due to the growing electrification of the transport and heating sectors over the next thirteen years. This paper provides a detailed technical and economic analysis of the role of energy storage technologies and transmission lines in balancing the power system amidst large shares of intermittent renewable energy generation. The analysis Read More
A Review of Analogue Case Studies Relevant to Large-scale Underground Hydrogen Storage
Feb 2024
Publication
Underground Hydrogen Storage (UHS) has gathered interest over the past decade as an efficient means of storing energy. Although a significant number of research and demonstration projects have sought to understand the associated technical challenges it is yet to be achieved on commercial scales. We highlight case studies from town gas and blended hydrogen storage focusing on leakage pathways and hydrogen reactivity. Experience from heliu Read More
Influence of Engine Oils on Pre-Ignition Tendency in a Hydrogen–Kerosene Dual-Fuel Engine
Mar 2025
Publication
Reducing CO2 emissions is an increasingly important goal in general aviation. The dual-fuel hydrogen–kerosene combustion process has proven to be a suitable technology for use in small aircraft. This robust and reliable technology significantly reduces CO2 emissions due to the carbon-free combustion of hydrogen during operation while pure kerosene or sustainable aviation fuel (SAF) can be used in safety-critical situations or in the event of fuel sup Read More
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