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Edgar Laile, Richard A. Zahoransky, Gerhard Poss, Wolfgang Riedel, Ulrich Ulmer, Roland Grisar

Long Term Monitoring by Means of a Calibration-Free, Compensated Light Scattering Photometer

For monitoring of low mass concentrations and particle size distributions under high pressure and temperature conditions, e. g., in pressurized fluidized bed combustion or pressurized pulverized coal combustion processes, a self-compensating light-scattering photometer is presented. Light scattering signals measured for a particle collective are normalized with respect to light transmission data. The advantage of the new principle is the insensitivity against ageing and contamination of components which distinguishes it from conventional photometers. The system can be applied at temperatures of up to 900 ºC.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 72, 07/2005
Pages: 468 - 475

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