United Kingdom

The different CFD tools used by the NoE HySafe partners are applied to a series of integral complex Standard Benchmark Exercise Problems (SBEPs). All benchmarks cover complementarily physical phenomena addressing application relevant scenarios and refer to associated experiments with an explicit usage of hydrogen. After the blind benchmark SBEPV1 and SBEPV3 with subsonic vertical release in a large vessel and in a garage like facility SBEPV4 with a horizontal under-expanded jet release through a small nozzle SBEPV5 covers the scenario of a subsonic horizontal jet release in a multi-compartment room.<br/>As the associated dispersion experiments conducted by GEXCON Norsk Hydro and STATOIL were disclosed to the participants the whole benchmark was conducted openly. For the purpose of validation only the low momentum test D27 had to be simulated.<br/>The experimental rig consists of a 1.20 m x 0.20 m x 0.90 m (Z vertical) vessel divided into 12 compartments partially even physically by four baffle plates. In each compartment a hydrogen concentration sensor is mounted. There is one vent opening at the wall opposite the release location centrally located about 1 cm above floor with dimensions 0.10 m (Y) times 0.20 m (Z). The first upper baffle plate close to the release point is on a sensitive location as it lies nearly perfectly in the centre of the buoyant jet and thus separates the flow into the two compartments. The actual release was a nominally constant flow of 1.15 norm liters for 60 seconds. With a 12mm nozzle diameter this corresponds to an average exit velocity of 10.17 m/s.<br/>6 CFD packages have been applied by 7 HySafe partners to simulate this experiment: ADREAHF by NCSRD FLACS by GexCon and DNV KFX by DNV FLUENT by UPM and UU CFX by HSE/HSL and GASFLOW by FZK. The results of the different participants are compared against the experimental data. Sensitivity studies were conducted by FZK using GASFLOW and by DNV applying KFX.<br/>Conclusions based on the comparisons and the sensitivity studies related to the performance of the applied turbulence models and discretisation schemes in the release and diffusion phase are proposed. These are compared to the findings of the previous benchmark exercises.

This work programme was focused on identifying a suitable odorant for use in a 100% hydrogen gas grid (domestic use such as boilers and cookers). The research involved a review of existing odorants (used primarily for natural gas) and the selection of five suitable odorants based on available literature. One odorant was selected based on possible suitability with a Polymer Electrolyte Membrane (PEM) based fuel cell vehicle which could in future be a possible end-user of grid hydrogen. NPL prepared Primary Reference Materials containing the five odorants in hydrogen at the relevant amount fraction levels (as would be found in the grid) including ones provided by Robinson Brothers (the supplier of odorants for natural gas in the UK). These mixtures were used by NPL to perform tests to understand the effects of the mixtures on pipeline (metal and plastic) appliances (a hydrogen boiler provided by Worcester Bosch) and PEM fuel cells. HSE investigated the health and environmental impact of these odorants in hydrogen. Olfactory testing was performed by Air Spectrum to characterise the ‘smell’ of each odorant. Finally an economic analysis was performed by E4tech. The results confirm that Odorant NB would be a suitable odorant for use in a 100% hydrogen gas grid for combustion applications but further research would be required if the intention is to supply grid hydrogen to stationery fuel cells or fuel cell vehicles. In this case further testing would need to be performed to measure the extent of fuel cell degradation caused by the non-sulphur odorant obtained as part of this work programme and also other UK projects such as the Hydrogen Grid to Vehicle (HG2V) project[1] would provide important information about whether a purification step would be required regardless of the odorant before the hydrogen purity would be suitable for a PEM fuel cell vehicle. If purification was required it would be fine to use Odorant NB as this would be removed during the purification step.

This report and any attachment is freely available on the Hy4Heat website here. The report can also be downloaded directly by clicking on the pdf icon above 

The study focuses on converting current industrial natural gas heating technologies to use 100% hydrogen considering the evidence which must be available before a decision on the UK’s decarbonisation pathway for heating could be made. The aim of the study is to assess the technical requirements and challenges associated with industrial hydrogen conversion and estimate the associated costs and timeframes.

This report and any attachment is freely available on the Hy4Heat website here. IGEM Members can download the report and any attachment directly by clicking on the pdf icon above.

The House of Lords Science and Technology Committee will question experts on the role of batteries and fuel cells for decarbonisation and how much they can contribute to meeting the net-zero target.

Tuesday’s evidence session will be the first of the committee’s new decarbonisation inquiry which was launched on Wednesday 3 March and is currently accepting written evidence submissions.

The session will give an overview of battery and fuel cell technologies and their applications in transport and other sectors. The Committee will ask how battery manufacture can be scaled up to meet wide-scale deployment of electric vehicles and whether technical challenges can be overcome to allow batteries and fuel cells to be used in HGVs and trains. The Committee will also investigate the wider use of batteries and fuel cells in various sectors including integration into power grids and heating systems.

Inquiry Role of batteries and fuel cells in achieving Net Zero

Professor Nigel Brandon Dean of the Faculty of Engineering at Imperial College London

Professor Mauro Pasta Associate Professor of Materials at University of Oxford

Professor Pam Thomas CEO at Faraday Institution and Pro Vice Chancellor for Research at University of Warwick

Mr Amer Gaffar Director of Manchester Fuel Cell Innovation Centre at Manchester Metropolitan University



Possible questions

What contribution are battery and fuel cell technologies currently making towards decarbonization in the UK?

What advances do we expect to see in battery and fuel cell technologies and over what timeframes?

How quickly can UK battery and fuel cell manufacture be scaled up to meet electrification demands?

What are the challenges facing technological innovation and deployment in heavy transport?

Are there any sectors where battery and fuel cell technologies are not currently used but could contribute to decarbonisation?

What are the life cycle environmental impacts of batteries and fuel cells?

Parliament TV video of the meeting​​​

This is part one of a three part enquiry.

Part two can be found here and part three can be found here.

This research project brought together members of the public from across the UK to participate in online workshops to explore:

• public understanding and perceptions of what reaching climate targets in the UK will mean for them individually and for society as a whole
• public attitudes and preferences towards the role that individual behaviour change should have in reaching net zero
• public perceptions of the easiest and toughest areas of change to help reach net zero
• public views on how they would prefer to engage with net zero policies and relevant initiatives that they feel could support the delivery of net zero

The Department for Business Energy and Industrial Strategy (BEIS) commissioned a study to research the capacity of the manufacturing supply chain to meet expected future demand for heat pumps. This report contains analysis of the existing supply chain including component parts and also assesses the risks to and opportunities for growth in domestic heat pump manufacture and export.<br/><br/>Alongside a literature review the findings in this report were supported by interviews with organisations involved in the manufacture of heat pumps and an online workshop held with a range of businesses throughout the supply chain.

Evidence-based policy-making has been a much-debated concept. This paper builds on various insights for a novel perspective: policy-driven narrative-based evidence gathering. In a case study of UK priority setting for bioenergy innovation documents and interviews were analysed to identify links between diagnoses of the problem societal visions policy narratives and evidence gathering. This process is illuminated by the theoretical concept of sociotechnical imaginaries—technoscientific projects which the state should promote for a feasible desirable future. Results suggest that evidence has been selectively generated and gathered within a specific future vision whereby bioenergy largely provides an input-substitute within the incumbent centralised infrastructure. Such evidence is attributed to an external expertise thus helping to legitimise the policy framework. Evidence has helped to substantiate policy commitments to expand bioenergy. The dominant narrative has been reinforced by the government’s multi-stakeholder consultation favouring the incumbent industry and by incentive structures for industry co-investment.

<br/>The decarbonisation of heating represents a transformative challenge for many countries. The UK’s net-zero greenhouse gas emissions target requires the removal of fossil fuel combustion from heating in just three decades. A greater understanding of policy processes linked to system transformations is expected to be of value for understanding systemic change; how policy makers perceive policy issues can impact on policy change with knock-on effects for energy system change. This article builds on the literature considering policy maker perceptions and focuses on the issue of UK heat policy. Using qualitative analysis we show that policy makers perceive heat decarbonisation as disruptive technological pathways are seen as deeply uncertain and heat decarbonisation appears to offer policy makers little ‘up-side’. Perceptions are bounded by uncertainty affected by concerns over negative impacts influenced by external influences and relate to ideas of continuity. Further research and evidence on optimal heat decarbonisation and an adaptive approach to governance could support policy makers to deliver policy commensurate with heat decarbonisation. However even with reduced uncertainty and more flexible governance the perceptions of disruption to consumers mean that transformative heat policy may remain unpopular for policy makers potentially putting greenhouse mitigation targets at risk of being missed.

Egypt has one of the largest economies in the Middle East and North Africa (MENA) region and several of its industries are large sources of greenhouse gas (GHG) emissions. As part of its contribution to mitigate GHG emissions within the framework of the 2015 Paris Agreement on climate change Egypt is focusing on the development of an ambitious renewable energy programme.

Some of Egypt’s main industries are big consumers of hydrogen which is produced locally using indigenous natural gas without abatement of the CO2 emissions resulting from this production process. In the long-term the production and consumption of this unabated hydrogen known as grey hydrogen could become a serious challenge for Egypt’s exports of manufactured products. Thus the Egyptian government is planning to develop low carbon hydrogen alternatives and has set up an inter-ministerial committee to prepare a national hydrogen strategy for Egypt.

This paper explores the prospects for low carbon hydrogen (blue and green hydrogen) developments in Egypt focusing on the potential replacement of Egypt’s large domestic production of grey hydrogen with cleaner low carbon hydrogen alternatives.

The research paper can be found on their website

The HYPER project a specific targeted research project (STREP) funded by the European Commission under the Sixth Framework Programme developed an Installation Permitting Guide (IPG) for hydrogen and fuel cell stationary applications. The IPG was developed in response to the growing need for guidance to foster the use and facilitate installation of these systems in Europe. This document presents a modified version of the IPG specifically intended for the UK market. For example reference is made to UK national regulations standards and practices when appropriate as opposed to European ones.<br/>The IPG applies to stationary systems fuelled by hydrogen incorporating fuel cell devices with net electrical output of up to 10 kWel and with total power outputs of the order of 50 kW (combined heat + electrical) suitable for small back up power supplies residential heating combined heat-power (CHP) and small storage systems. Many of the guidelines appropriate for these small systems will also apply to systems up to 100 kWel which will serve small communities or groups of households. The document is not a standard but is a compendium of useful information for a variety of users with a role in installing these systems including design engineers manufacturers architects installers operators/maintenance workers and regulators.<br/>This report and the work it describes were funded by the Health and Safety Executive (HSE). Its contents including any opinions and/or conclusions expressed are those of the authors alone and do not necessarily reflect HSE policy.