Pump efficiency
Pump efficiency
(OP)
What kind of pump efficiency is there other than volumetric? I'm thinking it would be Horsepower, but I'm not completely sure.
This question is in regards to a pump on a drilling or workover rig.
This question is in regards to a pump on a drilling or workover rig.





RE: Pump efficiency
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Pump efficiency
The volumetric effiency is used to describe the efficency of postive displacement pumps. PD pumps are almost 100% efficent, but because they have gaps between the piston and the cylinder walls (on the end and where the suction discharge valves are), they are rated in volumetric effenciency. This really means you put work into the liquid to raise the pressure, but the liquid cannot get out of the cylinder and the work is lost. Yes, you can get some temperature increase on the fluid as it is pumped, just like a gas because that lost work has to go somewhere. Volumetric effiency will be different for different fluids. Water will be 100% volumetric efficent times the pump rated volumetric efficency, whereas propane will be 95% times the pump rated VE, its a compressibility thing, its not a perfect fluid.
RE: Pump efficiency
RE: Pump efficiency
RE: Pump efficiency
RE: Pump efficiency
RE: Pump efficiency
In addition to what pipehead said go
www.artec-machine.com/.../when_to_use_a_PDP.htm
may be it helps…
luis marques