Patent ID: 7854110

Claim:
A gas turbine engine, comprising: a compressor, a combustion stage and a turbine assembly; a fuel gas feed system for supplying fuel gas to the combustion stage of the gas turbine engine, wherein the fuel gas feed system comprises a buffer tank; and an integrated fuel gas characterization system, wherein the integrated fuel gas characterization system takes readings from fuel gas in the fuel gas feed system and comprises: a Wobbe meter for measuring a Wobbe Index of fuel gas before the fuel gas is combusted in the combustion stage, a gas chromatograph for measuring individual gas constituents in the fuel gas before the fuel gas is combusted in the combustion stage, and a control system for adjusting at least one operating parameter of the gas turbine engine based on the rate of change of the Wobbe Index, the individual gas constituents, or both, as determined by the control system, wherein the integrated fuel gas characterization system proactively adjusts the operating parameters of the gas turbine engine during a dynamic fuel event.