Institute of Chemical Engineering page 1 Achema 2012 Mechanical Process Engineering Felix Lebl Contact: Projekt „Electrically Enhanced.

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Presentation transcript:

Institute of Chemical Engineering page 1 Achema 2012 Mechanical Process Engineering Felix Lebl Contact: Projekt „Electrically Enhanced Filtration“

Institute of Chemical Engineering page 2 Achema 2012 Mechanical Process Engineering Projekt blahfasel Electrically Enhanced Filtration The aim of the work: Investigation of the effects of different operation parameters on the filtration behaviour on a laboratory test apparatus. Operation parameters: Different filtration velocities Different filter media (membrane / needle felt) Electrostatic precipitation (turned “ON” and “OFF”)

Institute of Chemical Engineering page 3 Achema 2012 Mechanical Process Engineering Projekt blahfasel Modified VDI 3926 Type 2 filter test apparatus Description of the filter test apparatus Electrostatic Precipitator (neg. corona ) Filtering Precipitator

Institute of Chemical Engineering page 4 Achema 2012 Mechanical Process Engineering Projekt blahfasel At higher filtration velocities the rel. energy consumption is significantly lower for corona turned „ON“ Comparison of the rel. energy consumption for the needle felt and membrane filter medium

Institute of Chemical Engineering page 5 Achema 2012 Mechanical Process Engineering Projekt blahfasel Influence of the filtration rate on the average clean gas particle concentration for different filter media Significant reduction of the average clean gas particle concentration for corona charging turned „ON“.

Institute of Chemical Engineering page 6 Achema 2012 Mechanical Process Engineering Projekt blahfasel Conclusions: At higher filtration velocities, compared to the usual cleanable filtration velocities, a significant reduction of the rel. total energy consumption can be achieved for hybrid filter operation (corona charging “ON”), compared to corona charging “OFF”. The average clean gas concentration is significant lower for hybrid filter operation (corona charging “ON”), compared to corona charging “OFF”. This investigation shows that hybrid filters have a great potential concerning energy consumption and particle penetration.