Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE
Document Type and Number:
WIPO Patent Application WO/2012/100094
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 acting as a compressor) and converts the energy stored in compressed air to mechanical power (when 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.

Inventors:
STAHLKOPF KARL E (US)
FONG DANIELLE A (US)
CRANE STEPHEN E (US)
BERLIN EDWIN P JR (US)
POURMOUSA ABKENAR AMIRHOSSEIN (US)
Application Number:
PCT/US2012/021923
Publication Date:
October 26, 2012
Filing Date:
January 19, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LIGHTSAIL ENERGY INC (US)
STAHLKOPF KARL E (US)
FONG DANIELLE A (US)
CRANE STEPHEN E (US)
BERLIN EDWIN P JR (US)
POURMOUSA ABKENAR AMIRHOSSEIN (US)
International Classes:
F01B21/02; B05B1/02; F01B23/10; F01B29/04; F01K27/00; F02C1/02; F03C1/00; F04B39/06
Foreign References:
US5121607A1992-06-16
US5680764A1997-10-28
US20050274334A12005-12-15
Other References:
See also references of EP 2665895A4
Attorney, Agent or Firm:
CHO, Steve (PLLC6100 219th Street SW, STE 58, Mountlake Terrace Washington, US)
Download PDF: