US 12,152,496 B2 · Exhaust content

Abstract

The present application discloses a method of determining one or more fuel characteristics of an aviation fuel suitable for powering a gas turbine engine of an aircraft. The method comprises: determining, during use of the gas turbine engine, one or more exhaust content parameters by performing a sensor measurement on an exhaust of the gas turbine engine; and determining one or more fuel characteristics of the fuel based on the one or more exhaust parameters including the nvPM content of the exhaust. Also disclosed is a fuel characteristic determination system, a method of operating an aircraft, and an aircraft.

Claims18

Dependent claims

A method of determining one or more fuel characteristics of an aviation fuel suitable for powering a gas turbine engine of an aircraft, the method comprising:

determining, during use of the gas turbine engine, one or more exhaust content parameters by performing a sensor measurement on an exhaust of the gas turbine engine;
and
determining one or more fuel characteristics of the fuel based on the one or more exhaust content parameters,
wherein:
the one or more exhaust content parameters include a parameter indicative of a non-volatile particulate matter (nvPM) content of the exhaust;
and
the one or more fuel characteristics include any one of more of:
(i) a hydrogen to carbon ratio of the fuel;
(ii) a percentage of sustainable aviation fuel in the fuel;
(iii) an aromatic hydrocarbon content of the fuel;
(iv) a naphthalene content of the fuel;
and
(v) a sulphur content of the fuel.

10 more elements

Dependencies are inferred from the claim text.

Exhaust content

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Exhaust content

Life of this patent

Abstract

Claims18