Chemical Process Design
Chemical Process Design
Chemical Process Design
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Centrifugal pumps selection guide.<br />
(*)single-stage > 1750 rpm, multi-stage 1750 rpm<br />
(Sinnot, R, Towler, G., 2009)<br />
SHORT CUT for PUMPS SIZING<br />
Centrifugal pumps the most common. Assumptions: Isothermal conditions<br />
Brake horsepower:<br />
P1<br />
W<br />
b<br />
= µ<br />
Centrifugal<br />
Diaphragm<br />
Rotary gear<br />
and similar<br />
( P P )<br />
ρ η<br />
Normal operating range of pumps<br />
Type Capacity<br />
Range<br />
(m 3 /h)<br />
Reciprocating<br />
Rotary sliding<br />
vane or similar<br />
Pump: η P =0.5 (less than η C =0.8 because frictional problems in L); Motor: η M =0.9<br />
W b
Change language