公开(公告)号：US20240026830A1

公开(公告)日：2024-01-25

申请号：US18465441

申请日：2023-09-12

Applicant: PowerPHASE LLC

Inventor： Robert J. Kraft ,  Scott Auerbach ,  Sergio A. Arias Quintero

IPC: F02C9/50 ,  F02C9/00 ,  F02C3/30

CPC classification number: F02C9/50 ,  F02C9/00 ,  F02C3/30 ,  F05D2260/99 ,  F05D2270/30 ,  F05D2270/083 ,  F05D2270/303

Abstract: Systems and methods to control gas turbine firing temperatures during air injection. A method of achieving a desired firing temperature of a gas turbine engine during air injection comprises injecting compressed air into the gas turbine engine using an external source. The external source includes a compressor and a recuperator. The method comprises using a controller of the gas turbine engine to: (a) determine an air injection exhaust bias gain using an inlet temperature of the gas turbine engine; (b) calculate, based on the determined air injection exhaust bias gain and a flow rate of the injected compressed air, an air injection exhaust curve bias; and (c) change a fuel flow of the gas turbine engine by adding the air injection exhaust curve bias to an existing exhaust curve of the gas turbine engine to thereby achieve the desired firing temperature during air injection.

公开(公告)号：US11754003B2

公开(公告)日：2023-09-12

申请号：US17232797

申请日：2021-04-16

Applicant: PowerPHASE LLC

Inventor： Robert J. Kraft ,  Scott Auerbach ,  Sergio A. Arias Quintero ,  James H. Leahy, Jr.

IPC: F02C9/50 ,  F02C9/00 ,  F02C3/30

CPC classification number: F02C9/50 ,  F02C3/30 ,  F02C9/00 ,  F05D2260/99 ,  F05D2270/083 ,  F05D2270/30 ,  F05D2270/303

Abstract: Systems and methods to control gas turbine firing temperatures during air injection. A method of achieving a desired firing temperature of a gas turbine engine during air injection comprises injecting compressed air into the gas turbine engine using an external source. The external source includes a compressor and a recuperator. The method comprises using a controller of the gas turbine engine to: (a) determine an air injection exhaust bias gain using an inlet temperature of the gas turbine engine; (b) calculate, based on the determined air injection exhaust bias gain and a flow rate of the injected compressed air, an air injection exhaust curve bias; and (c) change a fuel flow of the gas turbine engine by adding the air injection exhaust curve bias to an existing exhaust curve of the gas turbine engine to thereby achieve the desired firing temperature during air injection.

公开(公告)号：US20210317791A1

公开(公告)日：2021-10-14

申请号：US17232797

申请日：2021-04-16

Applicant: PowerPHASE LLC

Inventor： Robert J. Kraft ,  Scott Auerbach ,  Sergio A. Arias Quintero ,  James H. Leahy, JR.

IPC: F02C9/50 ,  F02C9/00 ,  F02C3/30

Abstract: Systems and methods to control gas turbine firing temperatures during air injection. A method of achieving a desired firing temperature of a gas turbine engine during air injection comprises injecting compressed air into the gas turbine engine using an external source. The external source includes a compressor and a recuperator. The method comprises using a controller of the gas turbine engine to: (a) determine an air injection exhaust bias gain using an inlet temperature of the gas turbine engine; (b) calculate, based on the determined air injection exhaust bias gain and a flow rate of the injected compressed air, an air injection exhaust curve bias; and (c) change a fuel flow of the gas turbine engine by adding the air injection exhaust curve bias to an existing exhaust curve of the gas turbine engine to thereby achieve the desired firing temperature during air injection.

公开(公告)号：US10982599B2

公开(公告)日：2021-04-20

申请号：US15367525

申请日：2016-12-02

Applicant: POWERPHASE LLC

Inventor： Robert J. Kraft ,  Scott Auerbach ,  Sergio A. Arias Quintero ,  James H. Leahy, Jr.

IPC: F02C9/50 ,  F02C9/00 ,  F02C3/30

Abstract: The present invention discloses a novel modular system and methods of operating an increased air supply to a gas turbine engine such that the upon supplying a source of external air to the system, a bias is added to the exhaust temperature such that a firing temperature with air injection is substantially equivalent to the firing temperature without air injection.