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oai:www.ideals.illinois.edu:2142/83762 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Lucht, Robert P. Foglesong, Robert Edwin 2015-09-25T21:11:55Z 2015-09-25T21:11:55Z 10000-01-01 2001 2001 Flame structure and stabilization were studied using planar laser-induced fluorescence of the hydroxyl radical. Four operating conditions were examined---two equivalence ratios, 0.6 and 0.7, and two combustor pressure drops, 3% and 5%. Time-resolved images were acquired at two axial locations for each test condition, revealing a combustion flow field dominated by large-scale turbulent structures. Stabilization of the flame occurred primarily in the side recirculation zone at the edge of the premixer exit. Single-shot temperature measurements were made using coherent anti-Stokes Raman scattering at the two pressure drop conditions with an equivalence ratio of 0.7. Time-resolved measurements were made at twenty spatial locations at each condition. Temperatures were below those expected based on previous cold-flow mixing investigations that revealed fuel-rich mixtures in the reaction zone of the combustor. Emissions measurements demonstrated the correlation between equivalence ratio and NO x generation, but were generally low, indicating low levels of unmixedness. Made available in DSpace on 2015-09-25T21:11:55Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3023059.pdf: 7670399 bytes, checksum: 57474761233e975b5a1cafbc7143a57a (MD5) Previous issue date: 2001 Embargo set by: Seth Robbins for item 85043 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 139 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001. http://hdl.handle.net/2142/83762 (MiAaPQ)AAI3023059 eng Engineering, Mechanical Experimental Investigation of a Lean, Premixed Gas Turbine Combustor Using Advanced Laser Diagnostics text Mechanical Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.