ZERO EMISSIONS FLYING IN THE FUTURE ?

Rolls-Royce has entered into a multi-million-pound hydrogen engine and carbon removal project with easyJet. With hydrogen showing the most promise for zero-emission aviation, easyJet is also backing the Airbus ZEROe program. This program aims to have the first zero-emission commercial aircraft in service by 2023 using hydrogen technology. The immediate aim is to demonstrate that a jet engine can run and be controlled using hydrogen fuel. Today’s report said that the tests have shown that a jet engine using hydrogen can be started up and run at low speed. Based on that, the initial ground test has succeeded, which is not surprising given the know-how and resources that Rolls-Royce brings to the task. To turn hydrogen into a liquid, it needs to be cooled to -253C and turned back into a gas to power the engine. Also, liquid hydrogen takes up around four times the space as the same volume of kerosine, so new fuel tanks and systems will be needed.

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