US 11,852,082 B2
Systems and methods for controlling a fuel blend for a gas turbine
George F. Frey, Houston, TX (US); and Jocelyn E. Passty, Huntersville, NC (US)
Assigned to GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed by GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed on Jan. 5, 2022, as Appl. No. 17/568,782.
Prior Publication US 2023/0212990 A1, Jul. 6, 2023
Int. Cl. F02C 9/40 (2006.01); F02C 9/28 (2006.01); F23R 3/36 (2006.01)
CPC F02C 9/28 (2013.01) [F02C 9/40 (2013.01); F23R 3/36 (2013.01); F05D 2220/32 (2013.01); F05D 2270/0831 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of controlling a fuel blend for a turbine engine, said method comprising:
supplying a first fuel and a second fuel to a mixer;
mixing, in the mixer, the first and second fuels together to obtain the fuel blend;
receiving, from a fuel blend analyzer downstream from the mixer, a measurement indicative of a composition of the fuel blend;
comparing, by a controller, the fuel blend measurement to an operational model of a combustor;
determining, based on the comparison, predicted combustion conditions in the combustor associated with the fuel blend measurement;
controlling, based on the predicted combustion conditions, at least one of the flow of the first fuel and the flow of the second fuel;
combusting the fuel blend in the combustor;
receiving, from sensors coupled to the combustor, the sensors including a knock sensor and at least one of an optical sensor, a temperature sensor, and a pressure sensor, combustion signals indicative of combustion behavior in the combustor;
comparing, by the controller, the predicted combustion conditions to the combustion signals;
determining, by the controller, whether the predicted combustion conditions match the combustion behavior indicated by the combustion signals; and
updating the operational model if the predicted combustion conditions do not match the indicated combustion behavior.