The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2021
Filed:
Feb. 10, 2017
Kobe Steel, Ltd., Hyogo, JP;
Yohei Kubo, Kobe, JP;
Masatake Toshima, Kobe, JP;
Hiroki Saruta, Takasago, JP;
Masaki Matsukuma, Takasago, JP;
Kanami Sakamoto, Takasago, JP;
Kobe Steel, Ltd., Hyogo, JP;
Abstract
A compressed air energy storage (CAES) power generation apparatus includes a motor driven by renewable energy, a compressor driven by the motor, a pressure accumulating tank storing compressed air compressed by the compressor, an expander driven by the compressed air from the pressure accumulating tank, and a generator connected to the expander. The apparatus includes a first heat exchanger that performs heat exchange between the compressed air from the compressor to the pressure accumulating tank and a heat medium, cools the compressed air, and heats the heat medium, a heat accumulating tank that stores the heat medium heated by the first heat exchanger, a second heat exchanger that performs heat exchange between the compressed air from the pressure accumulating tank to the expander, heats the compressed air, and cools the heat medium, and third heat exchangers that perform heat exchange between the exhaust heat outside a system and a fluid in the system. The power generation efficiency of the apparatus is improved using the exhaust heat outside the system while the exhaust heat outside the system is cooled using the cold heat generated in the system of the apparatus.