Pipeline pressure drop calculation

[xnabrar]

hi all,

Does anyone know how we do [highlight ]pressure drop calculation[/highlight] high/low level in the pipeline for hydro test?



thanks.

 

[LittleInch]

Yes, but your question doesn't make sense. Please explain further.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[xnabrar]

Dear,

Attached herewith are the relevant drawings/documents for the pipeline. We request for the pressure drop calculation for the highest point, lowest point, and at the Test Manifold point (KM 106+803) in the attached pipeline Profile survey report.

Hope you understand the problem.

 

[LittleInch]

xnabra,

This is about as basic as you can get....

pressure in bar = m x SG x g / 100 or m x SG / 10.19

Your highest point seems to be 25.8m, lowest 1.35, trap elevation 5m.

I think you can do the maths from here on....

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[xnabrar]

please clear me for the equation.


pressure at highest point = (5.8 x 5)/10.19 = 12.65 PSIG

pressure at low point = (1.35 x 5)/10.19 = 0.6224 PSIG

please explain about SG.


thanks.

 

[LittleInch]

SG = specific gravity.

So 1 for water.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[MJCronin]

AAaaaaahhhhhhhhhhhhh !!!!!!!

MJCronin
Sr. Process Engineer

 

[LittleInch]

Your answers are not correct.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[hacksaw]

Don't forget acceleration gravity, g, and check your units

 

[xnabrar]

THANKS.
LittleInch
MJCronin
hacksaw