Study of Radiative Scattering Concept of Plume Infrared Radiation Obscuration.

摘要

Theoretical and experimental studies were performed to measure the synergistic absorption of hot-gas radiation by an aerosol/absorbing gas mixture and to verify quantitatively the infrared absorption of carbon particles. Computer calculations for a pure scatterer/N2O absorbing gas mixture revealed a synergistic effect of only 10%. In carbon - N2O mixtures, synergism was negligible. Attenuation measurements were made for pure carbon and TiO2 aerosols, pure N2O samples, and the combination of each aerosol in N2O. In all cases, the net transmittance of the gas/aerosol was described by the simple product of the N2O alone and aerosol transmittances. No synergism were detected. Transmission calculations for carbon show it a very effective candidate for plume obscuration. (Author)