Radiation from the hydrogen flame with distributions of temperature and of composition

The spectral intensities of infrared radiation from combustion reaction zones which have various distributions of temperature and composition of gases have been predicted by applying the Curtis-Godson approximation and the Mayer-Goody random narrow band model. The premixed flame of hydrogen was chosen as the experimental object, and the distributions of temperature and composition, respectively, were measured by thermocouples and a gas chromatographic technique. The predicted values of spectral intensities of the 2.7 micron band agree fairly well with those measured by an infrared spectrophotometer. Furthermore, it has been observed that the radiation intensities from such gas bodies that have the same distribution pattern but different positions of the radiation acceptor differ from each other.