Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression
US7874155B2 · kind B2 · utility
73Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2010 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Feb 25, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to systems and methods for rapidly and isothermally expanding and compressing gas in energy storage and recovery systems that use open-air hydraulic-pneumatic cylinder assemblies, such as an accumulator and an intensifier in communication with a high-pressure gas storage reservoir on a gas-side of the circuits and a combination fluid motor/pump, coupled to a combination electric generator/motor on the fluid side of the circuits. The systems use heat transfer subsystems in communication with at least one of the cylinder assemblies or reservoir to thermally condition the gas being expanded or compressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.