Accession Number:

ADA561040

Title:

Laser Diagnostic Imaging of Energetically Enhanced Flames Using Direct Microwave Plasma Coupling

Descriptive Note:

Journal article

Corporate Author:

MICHIGAN STATE UNIV EAST LANSING DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Rao, Xing
• Hammack, Stephen
• Carter, Campbell
• Lee, Tonghun

Report Date:

2011-11-01

Pagination or Media Count:

3.0

Abstract:

Quantitative images of temperature and hydroxyl OH concentrations are presented in plasma-enhanced flames where a nonthermal microwave plasma discharge is coupled directly with the reaction zone of the flame. The plasma jet is generated through a novel microwave 2.45 GHz waveguide based a coaxial reactor system. Planar laser-induced fluorescence is used to generate the OH fields, and planar Rayleigh scattering thermometry is used for the temperature. Plasma-enhanced flames present new possibilities for ignition and flame holding under harsh operating conditions, including stabilization of combustion in hypersonic flame conditions.

Descriptors:

• *LASERS
• *MICROWAVES
• COAXIAL CONFIGURATIONS
• COUPLING(INTERACTION)
• DIAGNOSIS(GENERAL)
• FLAMES

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE