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System and method for capacitive heat to electrical energy conversion

United States Patent

9,653,673
May 16, 2017
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A system includes at least one capacitor comprising a dielectric material having a Curie temperature, each capacitor exhibiting an increased capacitance at a temperature below the Curie temperature and exhibiting a decreased capacitance at a temperature above the Curie temperature, a liquid source positioned adjacent to the capacitor and having a temperature above the Curie temperature, and means for exposing the capacitor to the liquid source for a predetermined time so the temperature of the dielectric material exceeds the Curie temperature, at which point the capacitance decreases. A voltage storage is connected to the capacitors to capture the increased voltage discharged from the capacitors. The capacitors are then removed from the liquid source and cooled. The capacitors may iteratively be recharged, exposed to the liquid source until their temperature exceeds the Curie temperature, connected to the voltage storage, removed from the liquid source, and cooled.
Dea; Jack Y. (San Diego, CA)
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY (Washington, DC)
13/ 898,594
May 21, 2013
FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT The System and Method for Capacitive Heat to Electrical Energy Conversion is assigned to the United States Government and is available for licensing for commercial purposes. Licensing and technical inquiries may be directed to the Office of Research and Technical Applications, Space and Naval Warfare Systems Center, Pacific, Code 72120, San Diego, Calif., 92152; voice (619) 553-5118; email ssc_pac_T2@navy.mil; reference Navy Case Number 101609.