A technique for extrapolating absorption coefficient measurements to high temperatures

摘要: Abstract An extrapolation technique that provides semi-quantitative estimates for the infrared absorption coefficients of gaseous fuels at temperatures beyond those which measurements are generally practical (>700 K) is presented. The new method based on a simplified expression molecular line intensities consisting three fitting parameters and two variables (temperature frequency). accuracy extrapolations was tested first by comparing predictions CO, CO 2 , H O vapor to corresponding values obtained directly from HITEMP database. Finally, establish utility method, spectrum propane 1000 K compared actual experimental measurements.