Determination of the temperature and concentrations for the products of combustion of a hydrocarbon fuel on the basis of their infrared self-radiation

A measuring system has been developed and a procedure has been proposed for determining the temperature of gas flows and the concentrations of the products of combustion of organic fuels on the basis of the spectral “radiation–absorption” method. A gas multi-wavelength (1.8–4.8 μm) pyrometer–photometer has been created for measuring the self-radiation of gas flows and transmission of probing radiation from a reference source. The optimization of spectral intervals for temperature measurements of combustion products has been made. The test results of the temperature measurements for a laboratory gas burner are presented.