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Energy and Environment, 1995

ISBN Print: 1-56700-052-5

OPTICAL ON-LINE MEASUREMENTS OF PARTICULATE MASS CONCENTRATION AND PARTICLE SIZE OF POLLUTANT EMISSION

Abstract

In this paper, an optical measuring technique which can be used in in-situ measurements and gives the full particle size information as well as the absolute mass concentration of pollutant emissions is presented, according to the light scattering theory. Based on the Fraunhofer diffraction theory, the information about the particle size can be obtained by measuring the forward light flux at two small solid angles, and the mass concentration from the extinction measurement. Theoretical calculations and computer simulation are made to verify the validity and applicability of the presented method. Results show that it can be used to monitor and supervise the pollutant emissions in different industrial processes.
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