The hydrogen-electric geared fan has swept heat exchangers in the fan discharge flow to cool the fuel cells.
Credit: Vienna University of Technology
Europe’s exFAN Develops Heat Propulsor One of the biggest challenges with hydrogen-electric propulsion is cooling the fuel cells. While fuel cells are more efficient than turbine engines—50-60% versus 30-40—megawatts of waste heat must be removed at the multimegawatt scale that is required to power...
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