Ensuring the safety of hydrogen vehicles in tunnels and confined spaces
As transport decarbonises to meet global net zero targets, we
will see an increasing number of hydrogen-powered vehicles and
trains on our highways and railways.
To preserve public and environmental safety, particularly in
confined spaces such as tunnels, any risks arising from hydrogen
vehicles and trains need to be the same or lower than they
currently are for fossil fuel transport.
As such, unified regulations, codes and standards (RCSs) regarding
hydrogen vehicles and trains need to be established.
How is HSE helping?
HSE Research and Consultancy is part of a carefully built
consortium of academia, emergency services, research and standard
development organisations selected to work on HyTunnel, an
EU-funded project that has been established to perform
pre-normative research into the safety of hydrogen-driven transport
in tunnels and similar confined spaces.
Each partner will be contributing their extensive experience from
work on hydrogen safety as well as safety in tunnels and other
Working together, they will critically analyse the hazards,
associated risks and safety measures for hydrogen vehicles in
What will we find out?
HSE Research and Consultancy is generating experimental data in
support of the project's various work packages, using facilities at
its Science and Research Centre.
Our scientists and engineers will be designing and conducting
experimental research examining the effect of mitigation systems on
hydrogen release and dispersion in confined spaces. We will also be
looking at the thermal and pressure effects of hydrogen jet fires
on the structural integrity of materials. Finally, we will be
looking to prevent or mitigate hydrogen explosions by improving our
fundamental understanding of the associated hazards in tunnels and
similar confined spaces.
The results of our research will be collated with the work of the
other consortium partners to draw up recommendations for optimising
tunnel safety and emergency response, as well as revising RCSs. The
project will contribute to public safety and the prevention of
damage to property and the environment.
You can read more about HyTunnel, the consortium partners and full
details about each work package on the HyTunnel website.
Read about the
other projects we are supporting to enable a Safe Net Zero.
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