Patents by Inventor Sebastian Walter Freund

Sebastian Walter Freund 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: 20110127773
    Abstract: An electricity generation system is presented. The electricity generation system includes a solar preheater for preheating compressed discharge air, a combustor to receive the heated compressed air from the solar preheater, burn a fuel using the heated compressed air to generate hot burned gas, a first turbine to receive the hot burned gas from the combustor, expand the hot burned gas to generate exhaust gas, a heat recovery steam generator to receive the exhaust gas from the first turbine, generate vapor by heating a condensed fluid using the exhaust gas, a solar evaporator/superheater to receive a heated working fluid from the heat recovery steam generator, generate solar vapor by heating the heated working fluid, and a second turbine to drive a second generator using vapor and the solar vapor.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 2, 2011
    Inventors: Sebastian Walter Freund, Kevin Richard Lang, Pepe Palafox
  • Publication number: 20100263842
    Abstract: An organic rankine cycle system for recovering and utilizing waste heat from a waste heat source by using a closed circuit of a working fluid is provided. The organic rankine cycle system includes at least one evaporator. The evaporator further includes a surface-treated substrate for promoting nucleate boiling of the working fluid thereby limiting the temperature of the working fluid below a predetermined temperature. The evaporator is further configured to vaporize the working fluid by utilizing the waste heat from the waste heat source.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 21, 2010
    Inventors: Gabor Ast, Sebastian Walter Freund, Thomas Johannes Frey, Matthew Alexander Lehar, Richard Aumann