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Pressure surge

Thread starter wise78
Start date Oct 8, 2003

Status: Not open for further replies.

Oct 8, 2003

wise78

Mechanical

Dear all!

I am worjing on a pressure surge problem at present in a rising main connected to three pumping stations.

I am attempting to calculate the distance from the pump (which is triped) to the seperation point of the liquid, for appromiate positioning of a valve.

I can calculate the pressure surge in the rising main, but am a present considering using the pump and system inertia to calculate the valve positioning.

I have found in a paper that the trip speed of a pump is 0.05 - 0.005 seconds. If this was squared, and times by the interia of the system then the valve positioning would be given?!

Are the above assumptions correct?

Cheers