easyJet and Rolls-Royce are continuing their hydrogen research programmes with “ground-breaking” tests.
The latest set of tests will address a key engineering challenge of taking low-pressure liquid hydrogen, chilled below -250°C, and pressurising it so that it can then be pumped into an engine to be combusted.
Rolls-Royce has identified three technology challenges in the journey to enabling hydrogen for use in aviation: fuel combustion, fuel delivery and fuel systems integration with an engine. All elements must be confirmed to operate safely.
In September, the companies set a world first finding that an engine running on 100% hydrogen can be combusted at conditions that represent maximum take-off thrust.
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The tests taking place in Solihull now mark the start of understanding the fuel delivery element. Initial tests have focused on chilling the pump and understanding its behaviour at cryogenic conditions.
Rolls-Royce group director of engineering, technology and safety Simon Burr said the companies are making “good progress” on its research.
easyJet director of sustainability Jane Ashton added: “Hydrogen will be a key component in helping short haul aviation to decarbonise its operations and so we welcome the continued progress in Rolls Royce’s testing programme.
“We look forward to working with Rolls-Royce to develop these new technologies which have the potential to create a true step-change in the aviation industry.”
