REACTION FORCE AT NOZZLE END DUE TO BACK PRESSURE

[Arline]

Hello,
Can somebody help me to find
1) The magnitude of force along discharge(nozzle)pipe axis due to back pressure (assuming the valve is closed in the pipeline).

Pump Details :

Discahrge Pipe ID : 35.00 inches
Operating Pressure : 300 Psi
Distance between valve & nozzle end is 150.00 inches along the nozzle axis.

Thanks in advance..

Arline

 

[desertfox]

Hi Arline

If the valve is close and there's no flow won't this be a static problem and you just need to multiply the area of the pipe by the system pressure to get the axial force or am I missing something.

regards

desertfox

 

[BigInch]

That's it, P * A. It would give you the so called "closed end cap" axial tension force in the pipe's cross-sectional area due to internal pressure.

BigInch-born in the trenches.

http://virtualpipeline.spaces.msn.com

 

[Arline]

I did the same but i was getting around 360000 lbf which made to think on my calculation.

Now i am convinced from your replies that the calculation is okay.

Thank your very much for your quick response.

Arline

 

[desertfox]

Hi Arline

Using the discharge ID and 300psi I get 288633.825lbf


desertfox