PLIF OH measurements in ignition flame kernels

Conference · Sat Dec 31 04:00:00 EST 1988

OSTI ID:10115556

Cairns, K D; Santavicca, D A

In this work the relative importance of chemical and thermal mechanisms in the ignition and flame kernel growth process is studied using planar laser-induced fluorescence to measure the spatial and temporal evolution of OH concentration and gas temperature within a spark ignited flame kernel. Ignition is achieved using a standard automative ignition system, as well as, a modified version of that system with substantially increased breakdown energy. The experiments are conducted at atmospheric pressure and 300 K in a laminar methane-air flow. 4 refs.

• Research Organization: Pennsylvania State Univ., University Park, PA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
• DOE Contract Number: AS04-86AL38027
• OSTI ID: 10115556
• Report Number(s): CONF-881215--3; ON: DE92006776
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450000
COMBUSTION KINETICS
COMBUSTION, PYROLYSIS, AND HIGH-TEMPERATURE CHEMISTRY
DETECTION
FLAME PROPAGATION
FLUORESCENCE
HYDROXYL RADICALS
IGNITION SYSTEMS
LASER RADIATION
METHANE
MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
SPARK IGNITION ENGINES
SPARK-IGNITION