Open AccessModelling studies of the hazards posed by liquid hydrogen use in civil aviation
Author(s) -
P.G. Holborn,
J.M. Ingram,
Benson Cb
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1226/1/012059
Subject(s) - flammable liquid , environmental science , hazard , liquid hydrogen , jet fuel , leak , aircraft fuel system , jet (fluid) , hazard analysis , nuclear engineering , aviation accident , aviation , engineering , waste management , aerospace engineering , hydrogen , environmental engineering , combustion , chemistry , vapor lock , combustion chamber , organic chemistry
As part of the ENABLEH2 project, modelling studies have been carried out to examine liquid hydrogen release and dispersion behaviour for different LH2 aircraft and airport infrastructure leak/spill accident scenarios. The FLACS CFD model has been used to simulate the potential hazard effects following an accidental LH2 leak, including the extent of the flammable LH2 clouds formed, magnitude of explosion overpressures and pool fire radiation hazards. A comparison has also been made between the relative hazard consequences of using LH2 with conventional Jet A/A-1 fuel. The results indicate that in the event of accidental fuel leak/spill LH2 has some safety advantages over Jet A/A-1 but will also introduce additional hazards not found with Jet A/A-1 that will need to be carefully managed and mitigated against.