Indian Journal of Fibre & Textile Research

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Effect of Varying Cycle Time Interval and Aerosol Pre-Charge on Filtration Performance of Polyester Media


Affiliations
1 Bannari Amman Institute of Technology, Sathyamangalam, Erode 638 401, India
2 Dr B R Ambedkar National Institute of Technology, Jalandhar 144 001, India
 

Present study embodies filtration characterization of two nonwoven needle-felt polyester filter materials, viz. PTFE coated and without coated media. The materials have been assessed using flyash aerosol under varying time intervals (6, 9 and 12 min) at different inlet dust densities (50, 90 and 150 g/m3). The flyash particles are charged prior to their deposition over the filter media using a three phase parallel plate box pre-charger at two different levels of pre-charge, viz. 4 kV and 8 kV along with 0 kV. Results reveal that the filtration performance for PTFE coated material is better under all conditions. However, an enhanced filtration performance in terms of particle emission and pressure drop is noted at increased pre-charge level and higher cyclic interval. It may also be noted that the level of improvement in filtration behavior for both the materials has been better at initial level of pre-charge from 0 kV to 4 kV. However, the cumulative behavior of all the factors is also found significant.

Keywords

Aerosol Pre-Charge, Cycle Time, Dust Charge, Dust Concentration, Filtration Performance, Particulate Emission, Polyester, Pressure Drop.
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  • Effect of Varying Cycle Time Interval and Aerosol Pre-Charge on Filtration Performance of Polyester Media

Abstract Views: 146  |  PDF Views: 109

Authors

Sudev Dutta
Bannari Amman Institute of Technology, Sathyamangalam, Erode 638 401, India
Arunangshu Mukhopadhyay
Dr B R Ambedkar National Institute of Technology, Jalandhar 144 001, India
Akhil Sharma
Dr B R Ambedkar National Institute of Technology, Jalandhar 144 001, India

Abstract


Present study embodies filtration characterization of two nonwoven needle-felt polyester filter materials, viz. PTFE coated and without coated media. The materials have been assessed using flyash aerosol under varying time intervals (6, 9 and 12 min) at different inlet dust densities (50, 90 and 150 g/m3). The flyash particles are charged prior to their deposition over the filter media using a three phase parallel plate box pre-charger at two different levels of pre-charge, viz. 4 kV and 8 kV along with 0 kV. Results reveal that the filtration performance for PTFE coated material is better under all conditions. However, an enhanced filtration performance in terms of particle emission and pressure drop is noted at increased pre-charge level and higher cyclic interval. It may also be noted that the level of improvement in filtration behavior for both the materials has been better at initial level of pre-charge from 0 kV to 4 kV. However, the cumulative behavior of all the factors is also found significant.

Keywords


Aerosol Pre-Charge, Cycle Time, Dust Charge, Dust Concentration, Filtration Performance, Particulate Emission, Polyester, Pressure Drop.

References