Patents by Inventor Sanji Ekanayake

Sanji Ekanayake 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).

  • Publication number: 20140060061
    Abstract: The present application provides a fuel delivery system for use with a flow of heavy fuel oil for a gas turbine engine. The fuel delivery system may include one or more fuel lines in communication with the gas turbine engine and a magnesium mixing system positioned upstream of the one or more fuel lines. The magnesium mixing system may include a flow of magnesium and a flow of a carrier fluid, a carrier mixing chamber to mix the flow of magnesium and the flow of the carrier fluid to form a mixed carrier flow, and a heavy fuel oil mixing chamber to mix the flow of heavy fuel oil and the mixed carrier flow.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 6, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Alston Ilford Scipio, Sanji Ekanayake, Paul Robert Fernandez
  • Publication number: 20130340439
    Abstract: A system for de-icing a gas turbine engine is provided. A manifold is coupled to an inlet screen. A first conduit is coupled to a stage of the compressor and a first input of a mixing component. A second conduit is coupled to the exhaust and a second input of the mixing component. The second conduit being adapted to extract exhaust gases without increasing the pressure at the exhaust. A third conduit is coupled to the output of the mixing component and the manifold. A method for de-icing a gas turbine engine inlet screen includes determining a current temperature at the inlet screen, and determining a desired temperature at the inlet screen. If the current temperature at the inlet screen is less than the desired temperature at the inlet screen first flow rate of an air-exhaust mixture necessary to achieve the desired inlet screen temperature is calculated.
    Type: Application
    Filed: August 27, 2013
    Publication date: December 26, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sanji Ekanayake, Alston Ilford Scipio, Dale J. Davis, Ryan Margate Pastrana
  • Publication number: 20130330172
    Abstract: Methods, systems and apparatus for cleaning turbines, such as power generation turbines, are disclosed. Supplemental piping is connected to existing compressor air extraction and turbine nozzle cooling air piping, to supply water and/or cleaning agents into areas of a turbine not ordinarily accessible by injection of water and/or cleaning agents into the bellmouth of the turbine alone. Pressure and flow sensors, pumps, valving, and a control system to regulate the operation of the pumps and valving are provided to control the introduction of water and/or cleaning agents into the turbine.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Inventors: Alston Ilford Scipio, Sanji Ekanayake
  • Publication number: 20130318941
    Abstract: A system and method for supercharging a combined cycle system includes a forced draft fan providing a variable air flow. At least a first portion of the air flow is directed to a compressor and a second portion of the airflow is diverted to a heat recovery steam generator. A control system controls the airflows provided to the compressor and the heat recovery steam generator. The system allows a combined cycle system to be operated at a desired operating state by controlling the flow of air from the forced draft fan to the compressor and the heat recovery steam generator.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sanji Ekanayake, Alston I. Scipio
  • Publication number: 20130318965
    Abstract: A supercharging system for a gas turbine system having a compressor, a combustor, a turbine and a shaft includes a prime mover and a fan assembly that provides an air stream at an air stream flow rate. A hydraulic coupler is coupled to the prime mover and the fan assembly and a second torque converter may couple the supercharger prime mover to an electrical generator. The supercharging system also includes a subsystem for conveying a first portion of the air stream to the compressor, and a bypass subsystem for optionally conveying a second portion of the air stream to other uses.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 5, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sanji Ekanayake, Gordon Raymond Smith, Alston Ilford Scipio, Timothy Tah-teh Yang, Julio Enrique Mestroni, Kurt Waldner, Tedd Sellers
  • Publication number: 20130318987
    Abstract: A supercharging system includes a fan providing an air flow, and a prime mover that drives the fan. A duct directs a first portion of the air flow to a gas turbine system, a main bypass subsystem diverts a second portion of the air flow to a heat recovery steam generator; and a drive bypass subsystem that diverts a third portion of the air flow to the prime mover. The prime mover may be one of an aeroderivative gas turbine, a gas turbine, a reciprocating engine, a steam turbine and an induction motor and a variable frequency drive.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 5, 2013
    Inventors: Sanji Ekanayake, Alston Ilford Scipio, Timothy Tah-teh Yang, Julio Enrique Mestroni, Kurt Waldner, Tedd Sellers
  • Publication number: 20130318984
    Abstract: A supercharging system for a gas turbine system includes a compressor, a combustor, a turbine and a shaft. The supercharging system includes a fan assembly that provides an air stream and a torque converter coupled to the shaft and the fan assembly. The supercharging system also includes a subsystem for conveying a first portion of the air stream output to the compressor; and a bypass subsystem for optionally conveying a second portion of the air stream output to other uses.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sanji Ekanayake, Alston I. Scipio
  • Publication number: 20130193127
    Abstract: A resistive heating system for a combustion turbine susceptible to inlet air filter house component and compressor icing includes a plurality of heating panels (bundles) arranged in a substantially-planar array, adapted to be located on or adjacent to the turbine's inlet air filter house. Each heating panel is provided with one or more electrically-resistive heating elements; and a controller for selectively activating the resistive heating elements on each of the plurality of heating panels.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Applicant: General Electric Company
    Inventors: Alston Ilford Scipio, Sanji Ekanayake, Huong Van Vu, Abbas Motakef
  • Publication number: 20130125557
    Abstract: A gas turbine system includes a compressor protection subsystem; a hibernation mode subsystem; and a control subsystem that controls the compressor subsystem and the hibernation subsystem. At partial loads on the turbine system, the compressor protection subsystem maintains an air flow through a compressor at an airflow coefficient for the partial load above a minimum flow rate coefficient where aeromechanical stresses occur in the compressor. The air fuel ratio in a combustor is maintained where exhaust gas emission components from the turbine are maintained below a predetermined component emission level while operating at partial loads.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 23, 2013
    Inventors: Alston I. Scipio, Thomas John Freeman, Ryan Eric Obenhoff, Sanji Ekanayake, Michael Anthony Cocca, Mike Yarnold, Douglas Corbin Warwick, Joseph Klosinski
  • Publication number: 20120260667
    Abstract: A power plant is provided and includes a gas turbine engine to generate power, a heat recovery steam generator (HRSG) to produce steam from high energy fluids produced from the generation of power in the gas turbine engine, a steam turbine engine to generate additional power from the steam produced in the HRSG and a thermal load reduction system to reduce thermal loading of components of the HRSG and/or the steam turbine engine during at least startup and/or part load operations, which includes an eductor by which a mixture of compressor discharge air and entrained ambient air is injectable into the HRSG and/or an attemperator to cool superheated steam to be transmitted to the steam turbine engine and a detector disposed within the HRSG to facilitate identification of hot spots therein.
    Type: Application
    Filed: January 10, 2012
    Publication date: October 18, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rahul Jaikaran Chillar, Wulang Edwien Chriswindarto, Sanji Ekanayake, Julio Enrique Mestroni, Vijay Raghavendran Nenmeni, Achalesh Kumar Pandey, David Lee Rogers, Morgan Carthledge Salter, Ajit Srivastava