
349Engineering Solutions for Dust Release Containment and Air Dedusting
© 2010 Taylor & Francis Group, LLC
Work performed by mass forces will be determined using the following assump-
tions. The ow inside the housing will be divided into two zones. In the rst zone
(at the air inlet into the tunnel), airow will be considered horizontal
M 0 .
Although for the ow in the second zone (with the volume
), there is a uni-
formly rising ow
Mg const
0
. Then,
ρϑωρρ
Md
Q
a
⋅=−
0
. (5.260)
In view of these assumptions, Equation 5.258 would become
0011 0111
cT FF cTFF
cp aa aa a
ghQPFPFQq