Patents by Inventor Michael S. Demissie

Michael S. Demissie 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).

  • Actively-cooled water recovery in fuel cell power plants
    Patent number: 6777119
    Abstract: A fuel cell power plant with enhanced water recovery includes a fuel cell power plant adapted to receive a reducing fluid and an oxidant and to generate therefrom electricity and an at least partially saturated exhaust stream; a mass and energy transfer device defining a first flow passage for the wet exhaust stream and a second flow passage for an oxidant stream, the first flow passage being in mass transfer relationship with the second flow passage; and an apparatus for cooling at least one of the oxidant stream, the exhaust stream and the mass and energy transfer device, whereby water is transferred from the exhaust stream to the oxidant stream so as to produce an at least partially saturated oxidant stream. A method is also disclosed.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: August 17, 2004
    Assignee: UTC Fuel Cells, LLC
    Inventors: Michael S. Demissie, Leslie L. Van Dine, Margaret M. Steinbugler
  • Actively-cooled water recovery in fuel cell power plants
    Publication number: 20030186097
    Abstract: A fuel cell power plant with enhanced water recovery includes a fuel cell power plant adapted to receive a reducing fluid and an oxidant and to generate therefrom electricity and an at least partially saturated exhaust stream; a mass and energy transfer device defining a first flow passage for the wet exhaust stream and a second flow passage for an oxidant stream, the first flow passage being in mass transfer relationship with the second flow passage; and an apparatus for cooling at least one of the oxidant stream, the exhaust stream and the mass and energy transfer device, whereby water is transferred from the exhaust stream to the oxidant stream so as to produce an at least partially saturated oxidant stream. A method is also disclosed.
    Type: Application
    Filed: March 12, 2002
    Publication date: October 2, 2003
    Inventors: Michael S. Demissie, Leslie L. Van Dine, Margaret M. Steinbugler