Laser in situ monitoring of combustion processes.
Several examples of laser in situ monitoring of combustion processes are presented. Using a frequency modulated (13)CO(2) waveguide laser, in situ concentrations of NH(3) down to 1 ppm were measured at temperatures up to 600 degrees C in waste incinerators and power or chemical plants. Following ignition of CH(3)OH-O(2) mixtures by a TEA CO(2) laser, gas temperature profiles were measured using rapid scanning tunable diode laser spectroscopy of CO molecules. In laminar CH(4)-air counterflow diffusion flames at atmospheric pressure absolute concentrations, temperatures, and collisional lifetimes of OH radicals were determined by 2-D and picosecond LIF and absorption spectroscopy. Two-dimensional LIF and Mie scattering were used to observe fuel injection and combustion in a diesel engine.
Arnold
A
A
Becker
H
H
Hemberger
R
R
Hentschel
W
W
Ketterle
W
W
Kollner
M
M
Meienburg
W
W
Monkhouse
P
P
Neckel
H
H
Schafer
M
M
Schindler
K P
KP
Sick
V
V
Suntz
R
R
Wolfrum
J
J