Partial-load operation of a gas turbine with an adjustable bypass flow channel

US10774751B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Thorsten Engler · Moers, DE
• Manuel Gutermuth · Essen, DE
• Thomas Kerstiens · Hachenburg, DE
• Matthias Kleinenhammann · Essen, DE
• Norbert Knüwer · Herten, DE
• Kai Suselbeck · Dinslaken, DE
• Marc Tertilt · Hattingen, DE
• Ulrich Wagner · Bernburg, DE
• Frank Weidner · Stuttgart, DE

Key dates

• Filing date: Oct 23, 2014
• Grant date: Sep 15, 2020
• Expiry date: Mar 28, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E20/16
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A gas turbine has a compressor providing compressed air, a combustion chamber provided with a burner, and an expansion turbine, wherein a bypass flow channel is also provided designed to supply compressed air past the burner and to supply a hot gas flow generated in the combustion chamber during operation of the gas turbine. The opening cross section of the bypass flow channel can be adjusted, and an adjustment unit is designed to adjust the opening cross section of the bypass flow channel such that the modification speed of the opening cross section is selected such that the relative combustion chamber pressure drop or a material temperature of the combustion chamber is substantially constant, in particular that the relative combustion chamber pressure drop or the material temperature of the combustion chamber does not vary by more than 10%.