February 2014
Intermediate to advanced
417 pages
14h 51m
English
book
Industrial Air Quality and Ventilation
by Ivan Nikolayevich Logachev, Konstantin Ivanovich Logachev
Content preview from Industrial Air Quality and Ventilation
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244 Industrial Air Quality and Ventilation
© 2010 Taylor & Francis Group, LLC
we can nd
MR
ccbd Rc cbd
un
un
III
=+
∫∫
01 11 222
ρδ
ρδ
σ
δ
σ
(5.114)
or, considering that integrals represent the volumetric ow Q, a more compact nota-
tion can be used:
MQcR cR
uu
=+ρ
δ
()
10 2
. (5.115)
Because the relative ow velocity is virtually equal to peripheral velocity in section
I-I while it matches the radial component in section II-II,
ccu
uu122
0==,
,
(5.116)
therefore, in our case,
MQRu=ρ
δ 2
, (5.117)
and the theoretical pressure produced by the crusher rotor, as a fan impeller of its
own kind, equals
HMQu
T
==ωρ/
2
2
. (5.118)
Just like fans, the following holds true for rotar ...
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