Patents by Inventor Garth C. Frederick

Garth C. Frederick has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Operating a turbine at baseload on cold fuel with hot fuel combustion hardware
    Patent number: 8145403
    Abstract: A method and algorithm are provided to operate a gas turbine at baseload in an emission compliant capable mode to avoid combustion dynamics while operating with cold fuel and hot fuel combustion hardware. The method includes performing a gas turbine operational sequence such as a startup to an emission compliant capable mode. A gas fuel temperature is measured. The gas turbine is operated in the emissions compliant capable mode according to a designated fuel split for avoiding combustion dynamics when a temperature for a gas fuel is below a designated value. A determination is made whether a modified wobbe index for the gas fuel is below an emissions compliant value. An alarm is activated if the modified wobbe index is below the emissions compliant value to notify the operator of a potential emissions shift.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: March 27, 2012
    Assignee: General Electric Company
    Inventors: Jason D. Fuller, Garth C. Frederick, John C. Maters, Douglas C. Morgan, Luls M. Flamand
  • METHOD AND SYSTEM FOR ACTIVELY TUNING A VALVE
    Publication number: 20100256888
    Abstract: An embodiment of the present invention has the technical effect of utilizing a model-based system and real time data to adjust a parameter of at least one valve. An embodiment of the present invention may reduce the need of multiple sensors within a fuel system by integrating a model-based controller with real-time or approximately real-time data to adjust a parameter of at least one valve. An embodiment of the present invention may utilize a model-based controller to calculate the fuel flow through the at least one valve, in or near real-time.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 7, 2010
    Inventors: Ernest H. Tong, Timothy A. Healy, Garth C. Frederick
  • OPERATING A TURBINE AT BASELOAD ON COLD FUEL WITH HOT FUEL COMBUSTION HARDWARE
    Publication number: 20100168980
    Abstract: A method and algorithm are provided to operate a gas turbine at baseload in an emission compliant capable mode to avoid combustion dynamics while operating with cold fuel and hot fuel combustion hardware. The method includes performing a gas turbine operational sequence such as a startup to an emission compliant capable mode. A gas fuel temperature is measured. The gas turbine is operated in the emissions compliant capable mode according to a designated fuel split for avoiding combustion dynamics when a temperature for a gas fuel is below a designated value. A determination is made whether a modified wobbe index for the gas fuel is below an emissions compliant value. An alarm is activated if the modified wobbe index is below the emissions compliant value to notify the operator of a potential emissions shift.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Inventors: Jason D. Fuller, Garth C. Frederick, John C. Maters, Douglas C. Morgan, Luls M. Flamand