The objective of the presented work was the investigation of two-photon laser-induced fluorescence excitation spectra of carbon monoxide (CO) molecules (B-X) in a carbon dioxide ( CO 2 ) flow with an enthalpy of 2.1    MJ / kg . The flow was generated with an arcjet-driven plasma wind tunnel. For validation, different stoichiometric premixed methane / air flat flames and a low-pressure cold-gas cell filled with CO have been examined. For the excitation of the Q-branch of the B 1 Σ + X 1 Σ + ( 0 , 0 ) transition, the laser was tuned from 230.04 to 230.11 nm, with a step width of 0.0005 nm. Simulated spectra were calculated in advance with a simulation tool called NOCO-Spectra and showed good agreement with the experimental data. Finally, the rotational temperature of CO in the flow was evaluated by comparison of the CO-excitation spectra and the calculated spectra using a correlation automated rotational fitting procedure.


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    Title :

    Laser-Induced Fluorescence Investigations for Temperature Measurements in a Carbon Dioxide Flow


    Contributors:

    Published in:

    Publication date :

    2018-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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