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:
Oct. 08, 2019
Filed:
Dec. 23, 2016
Bechtel Infrastructure and Power Corporation, Reston, VA (US);
Seyfettin C. Gülen, Middletown, MD (US);
Mark S. Boulden, Middletown, MD (US);
Ilya Yarinovsky, Frederick, MD (US);
Bechtel Infrastructure and Power Corporation, Reston, VA (US);
Abstract
A combined cycle power generation plant has parallel normally-independent power generation trains, each having a gas turbine in line with a heat recovery steam generator. In a 'parked' or spinning reserve operational state, combustion is discontinued at the gas turbine of one power generation train, placed on turning fear. Combustion at the other power train is reduced, preferably to a minimum emissions-compliant level (NOx, CO) of the gas turbine operated at low level combustion. A bypass duct with controllable dampers apportions exhaust from the operating gas turbine to the heat recovery steam generators of both power trains. This maintains an elevated temperature in both heat recovery steam generators and enables fast restart.