In this paper, we present a methodology for simulating pressure drop and collection efficiency of a filter medium during instantaneous particle loading using the ANSYS–Fluent CFD code, enhanced with inhouse subroutines. The simulations are comprised of a numerical solution of the Stokes equations for obtaining the air flow field, and Lagrangian particle tracking, for determining the particle co...

behaviors of simultaneous removal of no and so2 using the coculture of anaerobic denitrifying bacteria and sulfate reducing bacteria were investigated in a bench-scale biotrickling-filter. approximate 20 days were required to use the landfill leachate as the microbial seed to develop the biofilm on the surface of packing material. when the combined no/so2 removal biotrickling-filter was operate...

The effect of the pore size distribution on size-resolved filtration efficiency was investigated for two ceramic particulate filters using matter (PM) generated by a spark-ignition direct-injection engine fueled with gasoline. cordierite filter tested had porosity 43%, median diameter 12 ?m, and wide lognormal standard deviation (??) 0.4. aluminum titanate very similar porosity, diameter, thick...

Air quality control has become increasingly important in many industrial areas. Glass fiber filter paper is widely used for the collection of airborne particulate matter. Since glass fiber is fragile, fiber dispersion is believed to be important for controlling filter paper properties. In this paper, the impact of fiber dispersion on filtration performance and tensile properties was studied. Tw...

Summary Sequential Monte Carlo methods are typically not straightforward to implement on parallel architectures. This is because standard resampling schemes involve communication between all particles. The $$\alpha$$-sequential method was proposed recently as a potential solution this that limits limited controlled through sequence of stochastic matrices known $$\alpha$$ matrices. We study the ...

Fibrous-type dust filters are used in flooded-bed scrubbers to capture from underground room and pillar mining atmospheres. They have 10–30 layers of finely woven strands that trap particles through the interception impaction process. A full-cone water spray is installed upstream filter, which floods screen. scrubber’s efficacy usually measured reported terms reduction gravimetric concentration...