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:
Aug. 27, 2013
Filed:
Feb. 29, 2012
Gijsbertus Oomens, Nussbaumen, CH;
Christoph Ruchti, Uster, CH;
Francois Droux, Oberrohrdorf, CH;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A method involves operating a combined-cycle power plant (), which has a gas turbine () with a compressor () and a turbine (), a heat recovery steam generator () which is connected downstream to the gas turbine () and is for producing steam in a water/steam cycle, and also at least one once-through cooler (), through which flows compressed air which is compressed in the compressor () and intended for cooling the gas turbine (), and, cooling down, converts feed-water () which is fed from the heat recovery steam generator () into steam, and discharges the steam to the heat recovery steam generator (). The combined-cycle power plant is switched between a first operating mode, in which only the gas turbine cycle is used for power generation, and a second operating mode, in which the gas turbine cycle and the water/steam cycle are used for power generation.