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Planar Imaging of Hydroxyl in a High Temperature, High Pressure Combustion FacilityAn optically accessible flame tube combustor is described which has high temperature, pressure, and air flow capabilities. The windows in the combustor measure 3.8 cm axially by 5.1 cm radially, providing 67 percent optical access to the square cross section flow chamber. The instrumentation allows one to examine combusting flows and combustor subcomponents, such as fuel injectors and air swirlers. These internal combustor subcomponents have previously been studied only with physical probes, such as temperature and species rakes. Planar laser-induced fluorescence (PLIF) images of OH have been obtained from this lean burning combustor burning Jet-A fuel. These images were obtained using various laser excitation lines of the OH A yields X (1,0) band for two fuel injector configurations with pressures ranging from 1013 kPa (10 atm) to 1419 kPa (14 atm), and equivalence ratios from 0.41 to 0. 59. Non-uniformities in the combusting flow, attributed to differences in fuel injector configuration, are revealed by these images.
Document ID
19960011375
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hicks, Yolanda R. (NASA Lewis Research Center Cleveland, OH, United States)
Locke, Randy J. (NYMA, Inc. Brook Park, OH., United States)
Anderson, Robert C. (NASA Lewis Research Center Cleveland, OH, United States)
Ockunzzi, Kelly A. (Ohio Aerospace Inst. Cleveland, OH., United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1995
Subject Category
Instrumentation And Photography
Report/Patent Number
NAS 1.15:107074
E-9938
NASA-TM-107074
NIPS-96-07532
Meeting Information
Meeting: International Symposium on Optical Science, Engineering and Instrumentation
Location: San Diego, CA
Country: United States
Start Date: July 9, 1995
End Date: July 14, 1995
Sponsors: Society of Photo-Optical Instrumentation Engineers
Accession Number
96N17811
Funding Number(s)
PROJECT: RTOP 537-02-20
CONTRACT_GRANT: NAS3-25266
Distribution Limits
Public
Copyright
Public Use Permitted.

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