Siemens Aktiengesellschaft

Siemens Energy, Inc.

Patrick Ronald Flohr

Heiko Claussen

Andreas Böttcher

Harald Hoell

Vyacheslav Veitsman

Werner Krebs

Nancy H Ulerich

Zainul Momin

Olga Deiss

Christian Beck

Jens Kleinfeld

Matthias Hase

Thomas Grieb

Patrick Lapp

Jaap Van Kampen

Uwe Sieber

Simon Purschke

Jürgen Meisl

Thomas Hauser

Guido Ahaus

Günther Walz

Martin Lenze

Sebastian Stock

Kai-Uwe Schildmacher

Frank Woditschka

Fabian Sander

Mariano Cano Wolff

Anna Knödler

Ingo Balkowski

Günther Schulze

Matthias Chlebowski

Waldemar Heckel

Christian Lyko

Uwe Remlinger

Thomas Alexis Schneider

Paul Pixner

Oliver Ricken

A burner arrangement having a combustion chamber, a multiplicity of mixing ducts discharging into the combustion chamber, in which ducts combustion air and fuel introduced during proper operation are mixed, and at least one resonator which has a defined resonator volume and resonator openings. The mixing ducts have mixing tubes which extend axially through an annular space defined between a tubular outer wall, a tubular inner wall arranged with the radial separation from the outer wall, an annular end plate arranged upstream and an annular end plate arranged downstream, wherein the end plates are provided with through openings which receive and/or prolong the mixing tubes. The resonator openings of the at least one resonator are designed as air ducts that extend through the downstream end plate, and the resonator volume of the at least one resonator is formed by at least one part of the annular space.

Burner arrangement with resonator

A burner assembly with a combustion chamber, a plurality of mixing ducts leading into the combustion chamber, where combustion air and introduced fuel are mixed. The mixing ducts are formed by mixing tubes extending axially through an annular space between a tubular outer wall, a tubular inner wall arranged radially at a distance from the outer wall, a ring-shaped end plate arranged upstream and a ring-shaped end plate arranged downstream. The end plates have through-openings, which accommodate and/or extend the mixing tubes, and the end plates have, both radially inside and outside, a circumferential edge extending in the direction of the annular space, with axial bores in the edge of the ring-shaped end plate arranged downstream. The axial bores extend from the annual space into the end plate, and at least one opening is for removing cooling air, the opening branching from the axial bore.

Bruner assembly

The state of a flame in a gas turbine engine combustor is acoustically monitored using a dynamic pressure sensor within the combustor. A spectral pattern of a dynamic pressure sensor output signal from the sensor is compared with a characteristic frequency pattern that includes information about an acoustic pattern of the flame and information about acoustic signal canceling due to reflections within the combustor. The spectral pattern may also be compared with a characteristic frequency pattern including information about a flame-out condition in the combustor.

Flame monitoring of a gas turbine combustor using a characteristic spectral pattern from a dynamic pressure sensor in the combustor

The state of a flame in a subject combustor of a gas turbine engine is acoustically monitored using a dynamic pressure sensor within the subject combustor and one or more additional sensors in nearby combustors. Dynamic pressure sensor output signals from the sensors are cross correlated to identify acoustic oscillations generated by a flame in the subject combustor and received by the sensors. The cross correlation may be constrained by a maximum time delay between correlated components of the signals, based on physical characteristics.

Flame monitoring of a gas turbine combustor using multiple dynamic pressure sensors in multiple combustors

The state of a flame in a gas turbine combustor is acoustically monitored using a single dynamic pressure sensor within the combustor. A dynamic pressure sensor output signal is received from the single sensor and is processed to determine a flame status. The signal is processed by performing an autocorrelation operation to identify time-separated portions of the signal and to determine that the time-separated portions of the signal include portions indicative of acoustic oscillations emitted by the flame in the gas turbine engine combustor and received directly by the single acoustic sensor, and portions indicative of reflections.

Single dynamic pressure sensor based flame monitoring of a gas turbine combustor

Growing community of inventors

Mülheim a.d. Ruhr, Germany

Patrick Ronald Flohr