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An Infrared Technique for Measuring Cycle-Resolved Transient Combustion-Chamber Surface Temperatures in a Fired Engine
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Abstract
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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Bethel, S. and Anderson, C., "An Infrared Technique for Measuring Cycle-Resolved Transient Combustion-Chamber Surface Temperatures in a Fired Engine," SAE Technical Paper 860240, 1986, https://doi.org/10.4271/860240.Also In
References
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