United Kingdom
Modelling Liquid Hydrogen Release and Spread on Water
Sep 2017
Publication
Consequence modelling of high potential risks of usage and transportation of cryogenic liquids yet requires substantial improvements. Among the cryogenics liquid hydrogen (LH2) needs especial treatments and a comprehensive understanding of spill and spread of liquid and dispersion of vapor. Even though many of recent works have shed lights on various incidents such as spread dispersion and explosion of the liquid over land less focus was given on spill a Read More
Vented Hydrogen-air Deflagrations in Low Strength Equipment and Buildings
Sep 2013
Publication
This paper aims to improve prediction capability of the vent sizing correlation presented in the form of functional dependence of the dimensionless deflagration overpressure on the turbulent Bradley number similar to our previous studies. The correlation is essentially upgraded based on recent advancements in understanding and modelling of combustion phenomena relevant to hydrogen-air vented deflagrations and unique large-scale te Read More
Hydrogen - A Pipeline to the Future
Sep 2020
Publication
Scotland’s Achievements and Ambitions for Clean Hydrogen - a joint webinar between the Scottish Hydrogen and Fuel Cell Association and the Pipeline Industries Guild (Scottish branch). Nigel Holmes. CEO Scottish Hydrogen & Fuel Cell Association provides an update on Scotland’s ambitions backed up by progress in key areas. This will show the potential for hydrogen at scale to support the delivery of policy targets highlighting areas of key strengths Read More
Effect of Rotation on Ignition Thresholds of Stoichiometric Hydrogen Mixtures
Sep 2017
Publication
Successful transition to a hydrogen economy calls for a deep understanding of the risks associated with its widespread use. Accidental ignition of hydrogen by hot surfaces is one of such risks. In the present study we investigated the effect that rotation has on the reported ignition thresholds by numerically determining the minimum surface temperature required to ignite stoichiometric hydrogen-air using a hot horizontal cylinder rotating at various an Read More
Non-adiabatic Blowdown Model: A Complimentary Tool for the Safety Design of Tank-TPRD System
Sep 2017
Publication
Previous studies have demonstrated that while blowdown pressure is reproduced well by both adiabatic and isothermal analytical models the dynamics of temperature cannot be predicted well by either model. The reason for the last is heat transfer to cooling during expansion gas from the vessel wall. Moreover when exposed to an external fire the temperature inside the vessel increases i.e. when a thermally activated pressure relief device (TPRD) is still c Read More
Monte-Carlo-analysis of Minimum Load Cycle Requirements for Composite Cylinders for Hydrogen
Sep 2017
Publication
Existing regulations and standards for the approval of composite cylinders in hydrogen service are currently based on deterministic criteria (ISO 11119-3 UN GTR No. 13). This paper provides a systematic analysis of the load cycle properties resulting from these regulations and standards. Their characteristics are compared with the probabilistic approach of the BAM. Based on Monte-Carlo simulations the available design range of all concepts is compared. I Read More
European Hydrogen Safety Training Platform for First Responders- Hyresponse Project
Sep 2013
Publication
The paper presents HyResponse project i.e. a European Hydrogen Safety Training Platform that targets to train First responders to acquire professional knowledge and skills to contribute to FCH permitting process as approving authority. The threefold training program is described: educational training operational-level training on mock-up real scale transport and hydrogen stationary installations and innovative virtual training exercises reproduci Read More
High CO2 Absorption Capacity of Metal-Based Ionic Liquids: A Molecular Dynamics Study
Apr 2020
Publication
The absorption of CO2 is of importance in carbon capture utilization and storage technology for greenhouse gas control. In the present work we clarified the mechanism of how metal-based ionic liquids (MBILs) Bmim[XCln]m (X is the metal atom) enhance the CO2 absorption capacity of ILs via performing molecular dynamics simulations. The sparse hydrogen bond interaction network constructed by CO2 and MBILs was identified through the radial d Read More
International Association for Hydrogen Safety ‘Research Priorities Workshop’, September 2018, Buxton, UK
Sep 2018
Publication
Hydrogen has the potential to be used by many countries as part of decarbonising the future energy system. Hydrogen can be used as a fuel ‘vector’ to store and transport energy produced in low-carbon ways. This could be particularly important in applications such as heating and transport where other solutions for low and zero carbon emission are difficult. To enable the safe uptake of hydrogen technologies it is important to develop the international scien Read More
Energy Innovation Needs Assessment: Carbon Capture Usage & Storage
Nov 2019
Publication
The Energy Innovation Needs Assessment (EINA) aims to identify the key innovation needs across the UK’s energy system to inform the prioritisation of public sector investment in low-carbon innovation. Using an analytical methodology developed by the Department for Business Energy & Industrial Strategy (BEIS) the EINA takes a system level approach and values innovations in a technology in terms of the system-level benefits a technology innovation provi Read More
The Road to Zero: Next Steps Towards Cleaner Road Transport and Delivering our Industrial Strategy
Jul 2018
Publication
Our mission is to put the UK at the forefront of the design and manufacturing of zero emission vehicles and for all new cars and vans to be effectively zero emission by 2040. As set out in the NO2 plan we will end the sale of new conventional petrol and diesel cars and vans by 2040. By then we expect the majority of new cars and vans sold to be 100% zero emission and all new cars and vans to have significant zero emission capability. By 2050 we w Read More
H21- Hydrogen Boilers Installed in Demonstration Houses
Nov 2020
Publication
Hydrogen boilers have been developed by Worcester Bosch and Baxi and are being trialled in demonstration houses. They look and feel just like the boilers we use today. Hydrogen produces no carbon when used and a hydrogen gas network could provide the least disruptive route to a net zero carbon future.
Decarbonising the UK’s Gas Network - Realising the Green Power-to-hydrogen Opportunity in the East Network
Aug 2020
Publication
Although the UK has done a great job of decarbonising electricity generation to get to net zero we need to tackle harder-to-decarbonise sectors like heat transport and industry. Decarbonised gas – biogases hydrogen and the deployment of carbon capture usage and storage (CCUS) – can make our manufacturing more sustainable minimise disruption to families and deliver negative emissions.Developing the capability to produce hydrogen at Read More
Blind-prediction: Estimating the Consequences of Vented Hydrogen Deflagrations for Homogeneous Mixtures in a 20-foot ISO Container
Sep 2017
Publication
Trygve Skjold,
Helene Hisken,
Sunil Lakshmipathy,
Gordon Atanga,
Marco Carcassi,
Martino Schiavetti,
James R. Stewart,
A. Newton,
James R. Hoyes,
Ilias C. Tolias,
Alexandros G. Venetsanos,
Olav Roald Hansen,
J. Geng,
Asmund Huser,
Sjur Helland,
Romain Jambut,
Ke Ren,
Alexei Kotchourko,
Thomas Jordan,
Jérome Daubech,
Guillaume Lecocq,
Arve Grønsund Hanssen,
Chenthil Kumar,
Laurent Krumenacker,
Simon Jallais,
D. Miller and
Carl Regis Bauwens
This paper summarises the results from a blind-prediction study for models developed for estimating the consequences of vented hydrogen deflagrations. The work is part of the project Improving hydrogen safety for energy applications through pre-normative research on vented deflagrations (HySEA). The scenarios selected for the blind-prediction entailed vented explosions with homogeneous hydrogen-air mixtures in a 20-foot ISO container. The tes Read More
Hydrogen Production by Steam Reforming of DME in a Large Scale CFB Reactor. Part I: Computational Model and Predictions
Oct 2015
Publication
This study presents a computational fluid dynamic (CFD) study of Dimethyl Ether steam reforming (DME-SR) in a large scale Circulating Fluidized Bed (CFB) reactor. The CFD model is based on Eulerian–Eulerian dispersed flow and solved using commercial software (ANSYS FLUENT). The DME-SR reactions scheme and kinetics in the presence of a bifunctional catalyst of CuO/ZnO/Al2O3+ZSM-5 were incorporated in the model using in-house developed user-de Read More
What Role for Hydrogen in Turkey’s Energy Future?
Nov 2021
Publication
Since early 2020 Turkey has been considering the role of hydrogen in its energy future with a view to producing a hydrogen strategy in the next few months. Unlike many other countries considering the role of hydrogen Turkey has only recently (October 2021) ratified the Paris Agreement addressing climate change and its interest is driven more by geopolitical strategic and energy security concerns. Specifically with concerns about the high share of i Read More
Flow of Hydrogen from Buried Leaks
Sep 2019
Publication
The substitution of hydrogen for natural gas within a gas network has implications for the potential rate of leakage from pipes and the distribution of gas flow driven by such leaks. This paper presents theoretical analyses of low-pressure flow through porous ground in a range of circumstances and practical experimental work at a realistic scale using natural gas hydrogen or nitrogen for selected cases. This study considers flow and distribution of 100 Read More
Towards Fire Test Protocol for Hydrogen Storage Tanks
Sep 2019
Publication
The reproducibility of fire test protocol in the UN Global Technical Regulation on Hydrogen and Fuel Cell Vehicles (GTR#13) is not satisfactory. Results differ from laboratory to laboratory and even at the same laboratory when fires of different heat release (HRR) rate are applied. This is of special importance for fire test of tank without thermally activated pressure relief devise (TPRD) the test requested by firemen. Previously the authors demonstrated a st Read More
Shielded Hydrogen Passivation – A Novel Method for Introducing Hydrogen into Silicon
Sep 2017
Publication
This paper reports a new approach for exposing materials including solar cell structures to atomic hydrogen. This method is dubbed Shielded Hydrogen Passivation (SHP) and has a number of unique features offering high levels of atomic hydrogen at low temperature whilst inducing no damage. SHP uses a thin metallic layer in this work palladium between a hydrogen generating plasma and the sample which shields the silicon sample from damaging Read More
Annual Science Review 2020
Mar 2020
Publication
HSE maintains a national network of doctors appointed doctors and approved medical examiners of divers who are appointed to deliver certain vital functions under our regulatory framework.1 Over the last year or so we have been reaching out to them and offering training and networking opportunities so that we can learn from each other. Their intelligence from real workplaces helps ensure that our medical approach is grounded by what actually happens Read More
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