Effect of Aerosol Charging on Energy Consumption During Pulse Jet Filtration Using Conductive Media

Energy consumption is an important aspect for any industry which directly relates to its profit margin. In the present study energy consumption during filtration of conductive filters has been analyzed at different dust charge levels on laboratory-based pulse jet system assisted with pre-charger. Five types of polyester conductive material viz. PTFE coated media, Stainless Steel Fibre blended with PET media, Stainless Steel Scrim media, Carbon Fibre blended with PET media and Carbon Filament Scrim Media have been characterized at three different charge levels viz. 4, 8, and 12 kV, and without charge. The results showed that there is a significant drop in consumption of energy with the increase in pre-charging. Energy consumption results were further compared with full scale bag house condition by calculating the power utilized for 100 bags. The outcome revealed that among all the materials the performance of PTFE coated media is the best and role of material is most significant toward the energy consumption by the filtration system. Overall energy consumption is reduced with the increase in charge level in the pre-charger. It has also been noted that percentage contribution of energy consumption for fan energy is much higher for full scale bag house as compared to flat media test rig. While for compressor energy, the difference in percentage contribution is comparatively less and for energy due to charge, there is not much variation in percentage contribution.