Computational Fluid Dynamics

BWF Envirotec has a new service that detects the current performance of the pulse-jet dust control system, Computational Fluid Dynamics (CFD) and Pressure Flow Analysis (PFA). With CFD and PFA technology, the efficiency of filter bag cleaning is measured both offline and online. Probes that work with the Prandtl-Principle are inserted into the filter bags and measure the real cleaning pressure and gas velocity. Offline measurements will detect the distribution of the cleaning air. Online measurements will detect if the cleaning pressure and velocity are sufficient for bag cleaning. With this analytical approach, the measured values can be recorded with sampling rates of up to 2000 Hz and even the smallest changes in the filter bag cleaning system can be detected. These measurements provide detailed information about the condition of the filter medium and the pulse-jet dust cleaning system. In most cases this will enable operators to reduce cleaning pressure, increase bag life and reduce emissions. Although it differs from plant-to-plant, bag cleaning improvements can often reach more than 20%.
BWF America Inc., Hebron, KY 859-282-4550 www.bwf-envirotec.us

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