Laser in situ monitoring of combustion processes.

作者信息

Arnold A, Becker H, Hemberger R, Hentschel W, Ketterle W, Kollner M, Meienburg W, Monkhouse P, Neckel H, Schafer M, Schindler K P, Sick V, Suntz R, Wolfrum J

出版信息

Appl Opt. 1990 Nov 20;29(33):4860-72. doi: 10.1364/AO.29.004860.

DOI:10.1364/AO.29.004860

PMID:20577480

Abstract

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.

摘要