TY - JOUR
T1 - Capacity of quartz fibers with high filtration efficiency for capturing soot aerosol particles
AU - Akbarnezhad, S.
AU - Amini, A.
AU - Soltani Goharrizi, A.
AU - Rainey, T.
AU - Morawska, L.
PY - 2018
Y1 - 2018
N2 - Two proposed quartz fibrous filters with dissimilar solid volume fractions and thicknesses are investigated for their efficiency in removing soot aerosol particles from air. Soot particles are sourced from a candle burning in a chamber, and the tests involve 1.5 h of continuous loading of particles at three different flow rates: 4.5, 8.15 and 9.55 l/min. The fractional efficiency, morphology and pressure drop of both clean and loaded filters are studied using a scanning mobility particle sizer, scanning electron microscope and differential pressure gauge. Both filters have relatively similar levels of efficiency 93% for particle size (100–400Â nm) at the lowest flow rate. At higher flow rates, the re-entrainment process effects the filtration efficiency of both filters. At the higher flow rate of 8.15 l/min, the filter with a higher solid volume fraction and thickness shows a higher pressure drop and an efficiency level of 95%. Increasing the flow rate to 9.55Â l/min helps to pass the particles with diameters larger than 100Â nm through two filters. This phenomenon decreases the fractional efficiency of both filters during the loading time.
AB - Two proposed quartz fibrous filters with dissimilar solid volume fractions and thicknesses are investigated for their efficiency in removing soot aerosol particles from air. Soot particles are sourced from a candle burning in a chamber, and the tests involve 1.5 h of continuous loading of particles at three different flow rates: 4.5, 8.15 and 9.55 l/min. The fractional efficiency, morphology and pressure drop of both clean and loaded filters are studied using a scanning mobility particle sizer, scanning electron microscope and differential pressure gauge. Both filters have relatively similar levels of efficiency 93% for particle size (100–400Â nm) at the lowest flow rate. At higher flow rates, the re-entrainment process effects the filtration efficiency of both filters. At the higher flow rate of 8.15 l/min, the filter with a higher solid volume fraction and thickness shows a higher pressure drop and an efficiency level of 95%. Increasing the flow rate to 9.55Â l/min helps to pass the particles with diameters larger than 100Â nm through two filters. This phenomenon decreases the fractional efficiency of both filters during the loading time.
KW - aerosols
KW - filters and filtration
KW - quartz fibers
KW - soot
UR - http://handle.westernsydney.edu.au:8081/1959.7/uws:47106
U2 - 10.1007/s13762-017-1457-1
DO - 10.1007/s13762-017-1457-1
M3 - Article
SN - 1735-2630
SN - 1735-1472
VL - 15
SP - 1039
EP - 1048
JO - International Journal of Environmental Science and Technology
JF - International Journal of Environmental Science and Technology
IS - 5
ER -