Hydrogen-powered planes are set to take wing around the world in the future. To make this possible, engineers have to develop the jet engines that will power them. Experiments by researchers are now providing the necessary basis for making these engines powerful and durable.
Hydrogen-powered planes are set to take wing around the world in the future. To make this possible, engineers have to develop the jet engines that will power them. Experiments by researchers at ETH Zurich are now providing the necessary basis for making these engines powerful and durable.
"Hydrogen burns much faster than kerosene, resulting in more compact flames," explains Nicolas Noiray, Professor in the Department of Mechanical and Process Engineering at ETH Zurich. This has to be taken into account when designing hydrogen engines. Experiments by Noiray's team now provide an important basis for this. The team has just published its results in the journalOne problem is vibrations, which engineers try to minimise.
In their experiments, the researchers used a single nozzle and then modelled the acoustic behaviour of the collection of nozzles as it would be arranged in a future hydrogen engine. The study is helping engineers at GE Aerospace to optimise the injection nozzles and to pave the way for a high performance hydrogen engine. In a few years, the engine should be ready for initial tests on the ground, and in the future, it could propel the first hydrogen fuelled aircrafts.
Abel Faure-Beaulieu, Bayu Dharmaputra, Bruno Schuermans, Guoqing Wang, Stephan Caruso, Maximilian Zahn, Nicolas Noiray.Chemists have taken a big step toward splitting hydrogen and oxygen molecules to make pure hydrogen -- without using fossil fuels. Results from pulse radiolysis experiments have laid bare the ...
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