A fluid fuel monitoring system 644 for any vehicle (e.g. aircraft) comprising a sensing apparatus 646 sensing a fluid flow property of fuel supply. A controller 648 controls vehicle operation (e.g. fuel pumps, engines, motors, electric generators) based on the fluid fuel flow property (e.g. fluid fuel viscosity, density) indicative of fuel supply composition. The vehicle may be fuelled with multiple fuel types, e.g. kerosene, biofuel, liquid hydrogen. Fuel pump power may be increased when an increase in density, e.g. increase in biofuel concentration in the mixture is sensed, such that vehicle operation is changed autonomously. Motor and electric generator power output may be maintained constant in response to sensing a change in fluid flow property. Conduits 650 may receive fuel from separate plural fuel tanks 652, 654 and combine fuels. Two or more flow meters, each having an orifice opening of a different diameter may measure fluid flow.
Systems, arrangements, structures and methods for aircraft
2021-04-07
Patent
Electronic Resource
English
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