Self-Exited Oscillation in a Combustion Chamber Driven by Phase Change in the Liquid Fuel Feed System

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ID: 51226
2011
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Abstract
A new mechanism for the generation of a self-exited oscillation of combustion in a generic combustion chamber typical for aeroengine combustors is described. The cause of the oscillation is the phase change from liquid to vapour which happens when the preheat temperature of the air flowing through the burner exceeds the boiling temperature at the operating pressure and the fuel flow is so low that heat transfer to the liquid fuel causes evaporation within the fuel channels of the burner. Liquid fuel and vapour alternatively enter the airstream of the burner. This leads to an unstable situation for the flame. Measurements of chemiluminescence and liquid fuel show nearly complete extinction and re-ignition for the limit cycle. Prevention of the oscillation is possible by better thermal management of the fuel path.
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hassa2011selfexitedinternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Hassa, C.;Heinze, J.;Meier, U.;Heeger, Ch;Trunk, Ph;Dreizler, A.;
Journal international journal of spray and combustion dynamics
Year 2011
DOI
DOI not found
URL
https://doi.org/10.1260/1756-8277.3.4.273
Keywords
chemistry Technology Mechanical engineering and machinery physics environmental sciences manufactures motor vehicles. aeronautics. astronautics environmental technology. sanitary engineering

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