Patents by Inventor Dwayne David McDuffie

Dwayne David McDuffie 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).

  • Patent number: 10378763
    Abstract: A power generation system includes a power generation plant portion including a feedwater heating system configured to channel a feedwater stream and a carbon dioxide capture portion coupled in flow communication with the power generation plant portion. The carbon dioxide capture portion includes a solvent circuit configured to channel a solvent stream through at least a portion of the carbon dioxide capture portion. The carbon dioxide capture portion also includes a heat recovery system coupled in flow communication with the solvent circuit and the feedwater heating system. The heat recovery system is configured to transfer heat energy from the solvent stream to the feedwater stream and to channel the heated feedwater from the heat recovery system to the feedwater heating system.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: August 13, 2019
    Assignee: General Electric Company
    Inventors: Surinder Prabhjot Singh, Dan Hancu, Benjamin Rue Wood, Wei Chen, Dwayne David McDuffie, Mark David Kehmna, Irina Pavlovna Spiry
  • Publication number: 20170159932
    Abstract: A power generation system includes a power generation plant portion including a feedwater heating system configured to channel a feedwater stream and a carbon dioxide capture portion coupled in flow communication with the power generation plant portion. The carbon dioxide capture portion includes a solvent circuit configured to channel a solvent stream through at least a portion of the carbon dioxide capture portion. The carbon dioxide capture portion also includes a heat recovery system coupled in flow communication with the solvent circuit and the feedwater heating system. The heat recovery system is configured to transfer heat energy from the solvent stream to the feedwater stream and to channel the heated feedwater from the heat recovery system to the feedwater heating system.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 8, 2017
    Inventors: Surinder Prabhjot Singh, Dan Hancu, Benjamin Rue Wood, Wei Chen, Dwayne David McDuffie, Mark David Kehmna, Irina Pavlovna Spiry
  • Patent number: 9494086
    Abstract: Systems and methods for improved control of a turbomachine system with a bottoming cycle system are presented. The systems and methods include a controller that utilizes modeling techniques to derive a plurality of load path curves. The controller utilizes a current load path, a minimum load path, and a constant efficiency load path. The systems and methods include a control process configured to receive a user input representative of a life cycle control modality and to execute a control action based on deriving a load efficiency by applying the current load path, the minimum load path, the constant efficiency load path, or a combination thereof, and the life cycle control modality. The control action is applied to control the turbomachine system and the bottoming cycle system fluidly coupled to the turbomachine system. Further, the life cycle control modalities may be selected by a user based upon known tradeoffs.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 15, 2016
    Assignee: General Electric Company
    Inventors: Achalesh Kumar Pandey, John Edward Sholes, Dwayne David McDuffie, Kamlesh Mundra, Maria Cecilia Mazzaro
  • Publication number: 20150247464
    Abstract: Systems and methods for improved control of a turbomachine system with a bottoming cycle system are presented. The systems and methods include a controller that utilizes modeling techniques to derive a plurality of load path curves. The controller utilizes a current load path, a minimum load path, and a constant efficiency load path. The systems and methods include a control process configured to receive a user input representative of a life cycle control modality and to execute a control action based on deriving a load efficiency by applying the current load path, the minimum load path, the constant efficiency load path, or a combination thereof, and the life cycle control modality. The control action is applied to control the turbomachine system and the bottoming cycle system fluidly coupled to the turbomachine system. Further, the life cycle control modalities may be selected by a user based upon known tradeoffs.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 3, 2015
    Applicant: General Electric Company
    Inventors: Achalesh Kumar Pandey, John Edward Sholes, Dwayne David McDuffie, Kamlesh Mundra, Maria Cecilia Mazzaro