Eng-Tips is the largest forum for Engineering Professionals on the Internet.

Members share and learn making Eng-Tips Forums the best source of engineering information on the Internet!

Register Log in
  • Congratulations JStephen on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Power Calculation for VFD Pump

Status
Not open for further replies.
engkate

engkate

Mechanical
Joined
Jul 12, 2006
Messages
1
Location
US
How do the affinity laws behave for %BHP in relationship to %flow when the head is constant?
 
Sort by date Sort by votes
You should be able to plot it on a pump curve to determine what will happen to the bhp.
 
Upvote 0 Downvote
When you change the speed of a pump, head will never stay constant. If you are controlling the pump speed by a pressure controller, then you will not get much benefit out of a VSD scheme.



 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

Antifed
  • Locked
  • Question Question
Pump Corrosion
Replies
9
Views
4K
3DDave
3DDave
Wayne _ Lunar
  • Locked
  • Question Question
Asking for Parallel or Series Pump Configuration
Replies
9
Views
2K
OsamaMEP
O
A
  • Locked
  • Helpful tip Helpful tip
CALCULATION SHEET FOR LEV VELOCITY PRESSURE METHOD ADAPTED FROM ACGIH 23RD ED.
Replies
1
Views
2K
alexyeo
A
J
  • Question Question
4 pipes reversible air source heat pump model in hap
Replies
1
Views
7K
LittleInch
LittleInch
XR250
  • Locked
  • Question Question
Residential Heat Pump Water Heater
Replies
14
Views
4K
XR250
XR250

Part and Inventory Search

Sponsor

Back
Top