Installation and method for storing and returning electrical energy
US8627665B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2008 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Mar 19, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C6/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An installation for storing and returning electrical energy having first and second enclosures containing a gas and porous refractory materials suitable for transferring heat by contact between said porous refractory materials and a gas flowing through said enclosures, and a compressor and an expander for the gas flowing in pipes between each of the ends of an enclosure connected to an end of the other enclosure. Methods are also disclosed for storing electrical energy in the form of heat energy in which an installation of the invention is used, and for a method of returning electrical energy from heat energy stored by a method according to the invention. The electrical energy is stored in the form of heat within masses of refractory material, and the stored thermal potential energy is returned in the form of electrical energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.