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.

Date of Patent:
May. 07, 2019

Filed:

Feb. 02, 2016
Applicant:

Siemens Energy, Inc., Orlando, FL (US);

Inventors:

Michael S. Briesch, Orlando, FL (US);

Ankur Deshmukh, Oviedo, FL (US);

Assignee:

SIEMENS ENERGY, INC., Orlando, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01K 23/10 (2006.01); F01K 7/22 (2006.01); F01K 7/32 (2006.01); F01K 7/18 (2006.01); F01K 3/26 (2006.01);
U.S. Cl.
CPC ...
F01K 23/106 (2013.01); F01K 3/26 (2013.01); F01K 7/18 (2013.01); F01K 7/22 (2013.01); F01K 7/32 (2013.01); F01K 23/10 (2013.01); F01K 23/101 (2013.01); Y02E 20/16 (2013.01);
Abstract

A method for operating a combined cycle power plant (CCPP) and improving a part load operation of the CCPP is provided. The CCPP may include at least a gas turbine, a heat recovery steam generator (HRSG) located downstream of the gas turbine, a main steam turbine, and a supercritical steam turbine. The HRSG may include a low pressure steam system, an intermediate pressure steam system, and a high pressure steam system. To improve the part load efficiency of the CCPP, a base load operation of the CCPP may be initiated with supercritical pressure, via the supercritical steam turbine, such that the efficiency impact resulting from the part load operation is reduced.


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