Lean premixed flames for low NO{sub x} combustors

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:219263

Sojka, P; Tseng, L; Bryyjak, J ^[1]

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1. Purdue Univ., Lafayette, IN (United States). Thermal Sciences and Propulsion Center; and others

The overall objectives of the research at Purdue are to: obtain a reduced mechanism description of high pressure NO formation chemistry using experiments and calculations for laminar lean premixed methane air flames, develop a statistical model of turbulence NO chemistry interactions using a Bunsen type jet flame, and utilize the high pressure chemistry and turbulence models in a commercial design code, then evaluate its predictions using data from an analog gas turbine combustor. Work to date has resulted in the following achievements: spatially resolved measurements of NO in high-pressure high-temperature flat flames, plus evaluation of the influence of flame radiation on the measured temperature profile; measurements of temperature and velocity PDFs for a turbulent methane/air flame were obtained for the first time, under operating conditions which allow their study in the distributed regimes, and the increase in EINO{sub x} with equivalence ratio predicted using a chemical kinetics model; and simulation of non-reacting combustor flow fields from ambient to elevated pressure and temperature conditions and comparison of those results with experimental velocity profiles.

• Research Organization: South Carolina Energy Research and Development Center, Clemson, SC (United States); Purdue Univ., Lafayette, IN (United States). Thermal Sciences and Propulsion Center
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC21-92MC29061
• OSTI ID: 219263
• Report Number(s): DOE/MC/29061--96/C0658; CONF-9510109--5; ON: DE96008912; CNN: Contract 93-01-SR009
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
33 ADVANCED PROPULSION SYSTEMS
42 ENGINEERING
AIR
AIR POLLUTION ABATEMENT
BURNERS
COMBUSTION KINETICS
COMBUSTORS
DESIGN
FLAMES
GAS TURBINES
METHANE
MIXING
NATURAL GAS
NITRIC OXIDE
NITROGEN OXIDES
TURBULENCE