Zobrazeno 1 - 10
of 346
pro vyhledávání: '"Christoph Hirsch"'
Publikováno v:
International Journal of Spray and Combustion Dynamics. 15:105-116
This article describes an experimental investigation of thermoacoustic flame transfer functions of the lean burnout zone of an rich–quench–lean combustion chamber. With spatial separation of the rich primary from the lean secondary dilution zone,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8744bbeb76c24bbbb40e70f3540f25b2
https://doi.org/10.1177/17568277231159172
https://doi.org/10.1177/17568277231159172
Publikováno v:
International Journal of Spray and Combustion Dynamics. 14:238-250
This study focuses on elucidating the flame dynamics of the lean burnout zone of an Rich-Quench-Lean (RQL) combustion chamber. With a new experimental approach of spatially separating the rich primary zone from the lean burnout zone, the latter can b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e4b4e10f1e02e8de82cd6ed8a105ee
https://doi.org/10.1177/17568277221128169
https://doi.org/10.1177/17568277221128169
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 144
A new approach to calculate the mixture statistics in multi-injector burner (MIB) systems from a single injector database is presented in the paper. In such systems, the mixture quality is highly sensitive to the flowrate and the skewness of the infl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9ac1eea85fa42b6186c5bf30c47bc66
https://doi.org/10.1115/1.4055491
https://doi.org/10.1115/1.4055491
Autor:
Christoph Hirsch, Michael Huth, Payam Mohammadzadeh Keleshtery, Thomas Sattelmayer, Lukasz Panek, Gerrit Heilmann
Constructive interference of acoustic oscillations and combustion heat release can result in high-frequency thermoacoustic instabilities in gas turbine combustion chambers with strong pressure pulsations. They may cause component wear and limit the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::101686e80fdde1d0f11ffed3126e603b
https://doi.org/10.1115/1.0002853v
https://doi.org/10.1115/1.0002853v
Publikováno v:
International Journal of Multiphase Flow. 119:108-122
Local measurements from optical fiber micro probes are presented on vertical subcooled flow boiling of refrigerant Novec 649. Experiments were conducted in a rectangular flow channel with a cross section of 40 mm by 40 mm at a mass flux density of 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e11f58d6d3916efc3d92d013ebc6bc44
https://doi.org/10.1016/j.ijmultiphaseflow.2019.07.012
https://doi.org/10.1016/j.ijmultiphaseflow.2019.07.012
Publikováno v:
Volume 3A: Combustion, Fuels, and Emissions.
In this paper a novel test-rig for the investigation of low-frequency thermoacoustic instabilities in aero-engines with air-staging RQL (rich-quench-lean) is presented. The new approach is to separate the rich primary zone from the lean secondary zon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::068615e29afaa56d83f03d571ba2fca3
https://doi.org/10.1115/gt2021-58602
https://doi.org/10.1115/gt2021-58602
Publikováno v:
Volume 3B: Combustion, Fuels, and Emissions.
The linearized Euler equations (LEE) provide an accurate — yet computationally efficient — description of propagation and damping of acoustic waves in geometrically complex, non-uniform reactive mean flows like those found in gas turbine combusti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6a1bd32bf9cef2597d23bc3772de1e6
https://doi.org/10.1115/gt2021-60055
https://doi.org/10.1115/gt2021-60055
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 143
An efficient approach for the detection of the acoustic damping of gas turbine combustors is the combination of spatially resolved finite element method (FEM) approaches based on the Helmholtz equation with low-order networks for all elements leading
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9269a1009cd8a0372fd8c6fb62a59c7
https://doi.org/10.1115/1.4050024
https://doi.org/10.1115/1.4050024
Publikováno v:
Volume 4A: Combustion, Fuels, and Emissions.
An efficient approach for the detection of the acoustic damping of gas turbine combustors is the combination of spatially resolved FEM approaches based on the Helmholtz equation with low-order networks for all elements leading to acoustic damping. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6f6fde1e2400b92cff76303f1b44092
https://doi.org/10.1115/gt2020-14610
https://doi.org/10.1115/gt2020-14610