US 11,754,003 B2
Gas turbine firing temperature control with air injection system
Robert J. Kraft, Tequesta, FL (US); Scott Auerbach, Jupiter, FL (US); Sergio A. Arias Quintero, Jupiter, FL (US); and James H. Leahy, Jr., Jupiter, FL (US)
Assigned to POWERPHASE INTERNATIONAL, LLC, Hobe Sound, FL (US)
Filed by PowerPHASE LLC, Jupiter, FL (US)
Filed on Apr. 16, 2021, as Appl. No. 17/232,797.
Application 17/232,797 is a continuation of application No. 15/367,525, filed on Dec. 2, 2016, granted, now 10,982,599.
Claims priority of provisional application 62/263,057, filed on Dec. 4, 2015.
Prior Publication US 2021/0317791 A1, Oct. 14, 2021
Int. Cl. F02C 9/50 (2006.01); F02C 9/00 (2006.01); F02C 3/30 (2006.01)
CPC F02C 9/50 (2013.01) [F02C 3/30 (2013.01); F02C 9/00 (2013.01); F05D 2260/99 (2013.01); F05D 2270/083 (2013.01); F05D 2270/30 (2013.01); F05D 2270/303 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of achieving a desired firing temperature of a gas turbine engine during air injection, comprising:
preprogramming into a controller of said gas turbine engine a constant associated with air injection;
injecting compressed air into said gas turbine engine using an external source;
using said controller to:
determine an air injection exhaust bias gain using each of said constant and an inlet temperature of said gas turbine engine;
calculate, based on said air injection exhaust bias gain and a flow rate of said compressed air, an air injection exhaust curve bias; and
operating said gas turbine engine along said air injection exhaust curve bias to achieve said desired firing temperature during air injection.