Patents by Inventor Didier WANTZ

Didier WANTZ 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: 10392575
    Abstract: The invention relates to a dryer system for drying lignite coal used in a power plant. The system comprises a dryer and a closed loop heat pump circuit that is configured and arranged to provide heat energy to the dryer. The closed loop heat pump circuit includes a working fluid, a dryer heat exchanger, an expansion device fluidly connected and downstream of the dryer heat exchanger, arranged to enable heat energy transfer from the vapor of the second outlet line to the first working fluid and a compressor for compressing the working fluid.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Thomas Edel, Frederic Geiger, Thierry Pourchot, Didier Wantz
  • Patent number: 9944875
    Abstract: The invention relates to a lignite fired steam power plant comprising a water/steam power cycle and a lignite dryer system having a heat pump circuit configured and arranged to provide heat energy to a lignite dryer of the dryer system. The heat pump includes a dryer heat exchanger, an expansion device and an evaporator heat exchanger connected to the first outlet line so as to enable heat energy transfer from the vapour of the first outlet line to the first working fluid. A compressor is also included in the heat pump circuit. In addition the heat pump circuit is connected to the water/steam power cycle by a steam makeup line from the pressure series of steam turbines and a condensate return line.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 17, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Edel, Frederic Geiger, Thierry Pourchot, Didier Wantz
  • Patent number: 9944874
    Abstract: The invention relates to a lignite fired steam power plant comprising a water/steam power cycle, a dryer system for drying lignite coal and a heat recovery system for recovering thermal energy from the dryer system. The heat recovery system vaporises condensate against a vapour line of the dryer steam and then compresses the vaporised condensate for use to preheat either or both combustion air or condensate of the water/steam power cycle.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: April 17, 2018
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Edel, Frederic Geiger, Thierry Pourchot, Didier Wantz
  • Patent number: 9835056
    Abstract: The invention relates to power plant with a steam water power cycle and a lignite dryer that uses steam from the steam water power cycle. The connection of the lignite dryer to the steam water power cycle includes a first extraction line and a second extraction line.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: December 5, 2017
    Assignee: General Electric Technology GmbH
    Inventors: Thomas Edel, Frederic Geiger, Thierry Pourchot, Didier Wantz
  • Publication number: 20160348540
    Abstract: The invention relates to power plant with a steam water power cycle and a lignite dryer that uses steam from the steam water power cycle. The connection of the lignite dryer to the steam water power cycle includes a first extraction line and a second extraction line.
    Type: Application
    Filed: May 17, 2016
    Publication date: December 1, 2016
    Inventors: Thomas EDEL, Frederic GEIGER, Thierry POURCHOT, Didier WANTZ
  • Publication number: 20160348023
    Abstract: The invention relates to a dryer system for drying lignite coal used in a power plant. The system comprises a dryer and a closed loop heat pump circuit that is configured and arranged to provide heat energy to the dryer. The closed loop heat pump circuit includes a working fluid, a dryer heat exchanger, an expansion device fluidly connected and downstream of the dryer heat exchanger, arranged to enable heat energy transfer from the vapour of the second outlet line to the first working fluid and a compressor for compressing the working fluid.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 1, 2016
    Inventors: Thomas EDEL, Frederic GEIGER, Thierry POURCHOT, Didier WANTZ
  • Publication number: 20160348020
    Abstract: The invention relates to a lignite fired steam power plant comprising a water/steam power cycle and a lignite dryer system having a heat pump circuit configured and arranged to provide heat energy to a lignite dryer of the dryer system. The heat pump includes a dryer heat exchanger, an expansion device and an evaporator heat exchanger connected to the first outlet line so as to enable heat energy transfer from the vapour of the first outlet line to the first working fluid. A compressor is also included in the heat pump circuit. In addition the heat pump circuit is connected to the water/steam power cycle by a steam makeup line from the pressure series of steam turbines and a condensate return line.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 1, 2016
    Inventors: Thomas Edel, Frederic Geiger, Theirry Pourchot, Didier Wantz
  • Publication number: 20160348019
    Abstract: The invention relates to a lignite fired steam power plant comprising a water/steam power cycle, a dryer system for drying lignite coal and a heat recovery system for recovering thermal energy from the dryer system. The heat recovery system vaporises condensate against a vapour line of the dryer steam and then compresses the vaporised condensate for use to preheat either or both combustion air or condensate of the water/steam power cycle.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 1, 2016
    Inventors: Thomas EDEL, Frederic GEIGER, Thierry POURCHOT, Didier WANTZ