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Hot gas filtration with ceramic filter candles: experimental and numerical investigations on fluid flow during element cleaning

  • Ceramic hot gas filters are widely used in combined cycles based on pressurised fluidised beds. They fulfil most of the demands with respect to cleaning efficiency and long time durability, but their operation regarding the consumption of pulse gas and energy still has to be optimised. Experimental investigations were carried out to measure the flow field, the pressure and the gas temperature inside the filter candle during pulse jet cleaning. These results are compared with the results of a numerical procedure based on a solution of the two - dimensional conservation equations for momentum and energy. The observed difficulties handling different flow regimes like highly turbulent flow as well as Darcy flow simultaneously are discussed.

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Author:Rolf Fritz GroßORCiD, M. Hecken, U. Renz
Parent Title (English):High temperature gas cleaning. Vol. 2
Publisher:KIT Institut für Mechanische Verfahrenstechnik und Mechanik
Place of publication:Karlsruhe
Editor:A. Dittler, G. Hemmer, G. Kasper
Document Type:Part of a Book
Year of Completion:1999
Date of the Publication (Server):2023/09/27
Tag:20 fossil-fueled power plants; ceramics; filtration; gas flow; hot gas cleanup
First Page:862
Last Page:873
4th International Symposium and Exhibition on Gas Cleaning at High Temperatures, 22.-24.09.1999, Karlsruhe
Institutes:FH Aachen / Fachbereich Bauingenieurwesen
FH Aachen / Solar-Institut Jülich
collections:Verlag / KIT Institut für Mechanische Verfahrenstechnik und Mechanik