Patent ID: 8127556

Claim:
A method of operating a turbomachine comprising a plurality of combustion cans capable of burning a syngas, the method comprising: providing a syngas fuel supply system wherein the syngas fuel supply system is integrated with the turbomachine and the syngas fuel supply system comprises a syngas valve; providing a non-syngas fuel supply system wherein the non-syngas fuel supply system is integrated with the turbomachine; determining whether to operate the turbomachine under a syngas operation, wherein the syngas operation utilizes the syngas fuel supply system; and determining whether the syngas operation is a solo mode or a co-fire mode; wherein the solo mode comprises utilizing the plurality of combustion cans to burn the syngas received from the syngas fuel supply system; and the solo mode performs the steps of: determining a fuel stroke reference (FSR); utilizing the FSR to determine a flow reference; utilizing the flow reference to determine a critical flow capacity (Cg) of the syngas valve; utilizing the Cg to determine a required position of the syngas valve; and adjusting the syngas valve to the required position; and wherein the co-fire mode comprises utilizing the plurality of combustion cans to burn the syngas received from the syngas fuel supply system and to burn a non-syngas received from the non-syngas fuel supply system.