Laser-induced fluorescence measurements of nitric oxide in laminar C[sub 2]H[sub 6]/O[sub 2]/N[sub 2] flames at high pressure

Journal Article · Mon Mar 01 00:00:00 EST 1993 · Combustion and Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(93)90161-U· OSTI ID:6396503

Reisel, J R; Carter, C D; Laurendeau, N M ^[1]

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1. Purdue Univ., West Lafayette, IN (United States)

In recent years, there has been increased concern over the adverse effects of combustion on the environment. Much of this concern focuses on the environmental problems caused by nitric oxide. Because many combustion applications, such as gas turbines and internal combustion engines, operate at high pressure, quantitative measurements of NO at such pressures are required to gain a better understanding of practical processes leading to NO formation. Such an improved understanding could lead to new combustion strategies that would further reduce NO emissions. One of the promising techniques for making accurate NO measurements at high pressure is laser-induced fluorescence (LIF). In this brief communication, the authors present quantitative LIF measurements of NO in C[sub 2]H[sub 6]/O[sub 2]/N[sub 2] flames at 1-9 atm, thereby demonstrating the feasibility of such measurements at high pressure. The authors have successfully used LIF to make quantitative measurements of NO down to [approximately] 1 ppm at pressures up to 9 atm. The location of maximum NO concentration shifts towards leaner equivalence ratios with increasing pressure. Quantitative NO concentration measurements using LIF should be achievable at even higher pressures.

• OSTI ID: 6396503
• Journal Information: Combustion and Flame; (United States), Vol. 92:4; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
ETHANE
COMBUSTION KINETICS
NITRIC OXIDE
FLUORESCENCE SPECTROSCOPY
SYNTHESIS
DISTRIBUTION
EMISSION
FLAMES
MEDIUM PRESSURE
MONITORING
NEODYMIUM LASERS
NITROGEN
OXYGEN
QUANTITATIVE CHEMICAL ANALYSIS
TEMPERATURE RANGE 1000-4000 K
ALKANES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
ELEMENTS
EMISSION SPECTROSCOPY
HYDROCARBONS
KINETICS
LASERS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SOLID STATE LASERS
SPECTROSCOPY
TEMPERATURE RANGE
400102* - Chemical & Spectral Procedures
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)