An Infrared Technique for Measuring Cycle-Resolved Transient Combustion-Chamber Surface Temperatures in a Fired Engine 860240
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.
Citation: 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. Download Citation
Steve Bethel, C. L. Anderson
Mercury Marine Division of Brunswick, Michigan Technological Univ.