An optical technique for measuring transient combustion chamber surface temperatures in a fired engine has been developed. The spectral region from 3.6 to 4.0 microns was found to be suitable for making optical measurements through the methane-air flame. The experimental apparatus was capable of making simultaneous time-resolved measurements of infrared gas absorption, gas emission and surface radiation during a single engine cycle.The effects of engine operating conditions on gas absorption and gas emission were investigated. Measurements of “simulated” deposits at temperatures ranging from 569 K to 944 K indicated that the technique was accurate within 7 K at the higher temperatures.


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    Title :

    An Infrared Technique for Measuring Cycle-Resolved Transient Combustion-Chamber Surface Temperatures in a Fired Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1986



    Publication date :

    1986-03-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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