Abstract:
The present study embodies the response of two
different filter media viz. conductive filter media (stainless
steel blended with PET fibers) and PTFE-Coated polyester
filter media, at four different charge levels (0 kV, 4 kV,
8 kV, and 12 kV) and at a particular dust concentration
(50 g/m3
) on pulse-jet filtration process performance. The
filter media were tested at ISO-11057 standard with conducting 200 pulsing cycles at final measuring phase.
Emission values in terms of PM2.5 and PM10 mass concentration and number particle concentration were comparatively lower while using PTFE-coated filter media in
comparison with conductive filter media. Downstream
emission values largely reduced for both filter media,
particularly at high charge level. PTFE-coated filter media
exhibit lower residual pressure drop as compared to conductive filter media when measuring the phase of filtration
operation, whereas on the contrary D10, D50, and D90 values
were found higher for PTFE-coated filter media and higher
charge level. Overall, it can be summarized that PTFEcoated media at higher dust charge levels showed better
filtration results.
