2.3. Specific cake resistance
The specific cake resistance can be estimated from the increase in
the pressure drop between time intervals 1 and 2 due to the mass of
dust particulates deposited in this time interval. Thus, the specific cake
resistance k2 can be written as [19,20]
k2 =
AðΔP2−ΔP1Þ
UðM2−M1Þ : ð4Þ
where A is the filtration area; M is the mass of the dust particulates
deposited; and the subscripts of 1 and 2 denote time
=
150ð1−eÞ2
e3
μU
d2P
+
1:75ð1−eÞ
e3
ρgU2
dP
; ð2Þ
where △P is the pressure drop; L is the average thickness of the cake,
and dp is the dust particulate diameter. The cake solidosity εs is
determined from the dust particulate content in the dust cake [16–18]
eS =1−e: ð3Þ