Fuel tank inerting system
AssigneeHs Marston Aerospace Limited
InventorsPaul Phillips, Berwyn Owain Pollard
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Abstract
There is provided a fuel tank inerting system for an aircraft which comprises a catalytic heat exchanger. The catalytic heat exchanger comprises a first flow path and a second flow path for heat exchange with the first flow path. The system also comprises a refrigerant circuit comprising at least the second flow path so that during use refrigerant in the refrigerant circuit is in heat exchange with the first flow path.
Claims14
A fuel tank inerting system for an aircraft comprising:
- a catalytic heat exchanger comprising a first flow path and a second flow path for heat exchange with the first flow path;
- and
- a refrigerant circuit comprising at least the second flow path so that during use refrigerant in the refrigerant circuit is in heat exchange with the first flow path.
A method of cooling a catalytic heat exchanger of a fuel inerting system comprising a catalytic heat exchanger comprising a first flow path and a second flow path for heat exchange with the first flow path;
- and a refrigerant circuit comprising at least the second flow path, the method comprising
- evaporating liquid refrigerant to form refrigerant vapour in the second flow path so as to cool the first flow path;
- and
- condensing the refrigerant vapour outside the second flow path of the catalytic heat exchanger by cooling the refrigerant vapour.
Dependencies are inferred from the claim text.