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THERMOELECTRIC ENERGY STORAGE SYSTEM HAVING AN INTERNAL HEAT EXCHANGER AND METHOD FOR STORING THERMOELECTRIC ENERGY

  • US 20120222423A1
  • Filed: 04/11/2012
  • Published: 09/06/2012
  • Est. Priority Date: 10/13/2009
  • Status: Abandoned Application
First Claim
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1. A thermoelectric energy storage system having a charging cycle for providing thermal energy to a thermal storage, and a discharging cycle for generating electricity by retrieving the thermal energy from the thermal storage, the thermoelectric energy storage system comprising:

  • a working fluid circuit for circulating a working fluid through a first heat exchanger and a second heat exchanger; and

    a thermal storage medium circuit for circulating a thermal storage medium, the thermal storage medium circuit having at least one hot storage tank coupled to a cold storage tank via the first heat exchanger,wherein, the second heat exchanger is adapted to cool the working fluid at an output of the first heat exchanger during a charging cycle, and adapted to pre-heat the working fluid at an input to the first heat exchanger during a discharging cycle.

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