COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE

Title:

COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE

Document Type and Number:

WIPO Patent Application WO/2011/008500

Kind Code:

A3

Abstract:

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the "pressure cell") partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

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Inventors:

FONG DANIELLE A (US)
CRANE STEPHEN E (US)
BERLIN EDWIN P JR (US)
POURMOUSA ABKENAR AMIRHOSSEIN (US)
MAHALATKAR KARTIKEYA (US)
HOU YONGXI (US)
BOWERS TODD (US)

Application Number:

PCT/US2010/040240

Publication Date:

May 19, 2011

Filing Date:

June 28, 2010

Export Citation:

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Assignee:

LIGHTSAIL ENERGY INC (US)
FONG DANIELLE A (US)
CRANE STEPHEN E (US)
BERLIN EDWIN P JR (US)
POURMOUSA ABKENAR AMIRHOSSEIN (US)
MAHALATKAR KARTIKEYA (US)
HOU YONGXI (US)
BOWERS TODD (US)

International Classes:

F03G7/00; B05B1/02; F01B9/02; F01B23/10; F01K27/00; F02C1/02; F02C6/16

Domestic Patent References:

WO2009061866A2

2009-05-14

Foreign References:

JPS5685527A	1981-07-11
JP2000314405A	2000-11-14
KR930011547U
KR20080024497A	2008-03-18

Other References: