Back to results
US 8,127,556 B2Granted
Method for operating a turbomachine having a syngas fuel supply system and a non-syngas fuel supply system
AssigneeGeneral Electric Company
InventorsJohn Reuben Aiton, Joseph Robert Law
Life of this patent
Estimating the term…
Abstract
The present invention provides a method of controlling a turbomachine having at least one fuel supply system that uses an unchoked valve. Here, the method may determine the flow characteristics of a fuel in a fuel supply system without using a flow meter. The present invention also provides a fuel supply system with a configuration comprising at least one unchoked valve. The fuel system may not require the use of a flow meter.
Claims18
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.
11 more elements
A method for controlling and operating a turbomachine comprising:
- operating a turbomachine comprising a plurality of combustion cans;
- operating a syngas fuel supply system integrated with the turbomachine, wherein the syngas fuel supply system comprises at least one syngas valve;
- operating a turbine control system comprising a syngas controller and a non-syngas controller;
- wherein the turbine control system:
- controls an operation of the syngas fuel supply system;
- operates the syngas operation under a solo mode or a co-fire mode;
- 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 position of the at least one syngas valve;
- and adjusting the at least one syngas valve to the position utilizing the Cg to determine a required position of the syngas valve;
- and
- adjusting the syngas valve to the required position;
- and
- wherein the solo mode comprises operating the turbomachine utilizing the syngas fuel supply system;
- and wherein the co-fire mode comprises operating the turbomachine utilizing the syngas fuel supply system and a non-syngas fuel supply system.
14 more elements
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;
- comprising receiving a plurality of operating data;
- wherein the plurality of operating data comprises at least one of the following:
- a molecular weight of the syngas used in the syngas fuel supply system;
- a pressure of the syngas upstream of the syngas valve;
- a temperature of the syngas upstream of the syngas valve;
- and a differential pressure of the syngas valve;
- utilizing the Cg to determine a required position of the syngas valve;
- adjusting the syngas valve to the required position;
- and
- providing at least one notification on a status of the turbomachine operation;
- 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.
18 more elements
A method for controlling and operating a turbomachine comprising:
- operating a turbomachine comprising a plurality of combustion cans;
- operating a syngas fuel supply system integrated with the turbomachine, wherein the syngas fuel supply system comprises at least one syngas valve;
- operating a turbine control system comprising a syngas controller and a non-syngas controller;
- wherein the turbine control system:
- controls an operation of the syngas fuel supply system;
- operates the syngas operation under a solo mode or a co-fire mode;
- 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;
- comprising receiving a plurality of operating data;
- wherein the plurality of operating data comprises at least one of the following:
- a molecular weight of the syngas used in the syngas fuel supply system;
- a pressure of the syngas upstream of the syngas valve;
- a temperature of the syngas upstream of the syngas valve;
- and a differential pressure of the syngas valve;
- utilizing the Cg to determine a required position of the syngas valve;
- and
- adjusting the at least one syngas valve to the required position;
- and wherein the solo mode comprises operating the turbomachine utilizing the syngas fuel supply system;
- and wherein the co-fire mode comprises operating the turbomachine utilizing the syngas fuel supply system and a non-syngas fuel supply system.
18 more elements
Dependencies are inferred from the claim text.