centrifugal pumps 5.21
DESCRIPTION
Centrifugal Pumps 5.21. Introduction. Basic Operation. Discharge. Motor. Pump. Power End. Suction. Selection. Mechanical Energy Equation. Simplifications. Pump Selection. Hypothetical Case:. Head Required = 200 ft. Flow Required = 300 GPM. Motor RPM = 3500. Pump Selection. - PowerPoint PPT PresentationTRANSCRIPT
Centrifugal Pumps 5.21
Introduction
• Basic Operation
Suction
DischargePumpMotor
Power End
Selection• Mechanical Energy Equation
gVk
gV
DfLh
gV
gP
whgV
gP RR
p 2222
22
2
222
1
211
g
sd
SPP
H)(31.2
E
QHSBHP g
3960
• Simplifications
Pump Selection
Hypothetical Case:
Head Required = 200 ft.
Flow Required = 300 GPM
Motor RPM = 3500
Pump Selection
Pump Selected
• 2X3-8 pump• 8 inch impeller• 26 + HP Motor• 23 + feet NPSH• 58.5% Efficient
Other Design Considerations
• Materials• Temperature• Availability of Motors• Location/Orientation• Space• Cost
Websites With Info
• www.gusher.com• www.acdpumps.com• www.gouldspumps.com• www.osmonics.com• http://web.singnet.com.sg/~acpump/
Basic Info Website:
• www.pumpline.com