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Pressure calcs
- Thread starter Acreeet
- Start date
LittleInch
Petroleum
And your question is??
What have you tried?
But basically just guess P2 and then iterate until the mass flowrates through the small pipes are equal.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
What have you tried?
But basically just guess P2 and then iterate until the mass flowrates through the small pipes are equal.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
- Thread starter
- #3
Thanks for your response.
I'm trying to estimate the pressure in the cavity, i.e. P2. I know the areas, A1 which in practicality is an annulus and A2 which is a 600m pipe with i/d 8mm.
I would like to initially understand how to calculate the pressure drop across the annulus.
At the moment I'm assuming the pressure drop which is not useful...
ΔP (P1-P2) = 2 kPa
v1 = SQRT(2000*2/1.2)= 57 m/s
Q1 (flowrate) = v1 * 26 = 1482 m2.mm/s
v2 = Q1/A2 = 1482/46 = 32 m/s
Friction losses at exit pipe
Fluid exits container at pipe length of 600mm length (L) and 8mm inner diameter (d)
L/d = 75
f = 0.05
ΔP (P2-P3) = 0.5*1.2*322*75*0.05= 2.3 kPa
NOt quiet sure how to calculate losses at entry and exit of pipe.
I'm trying to estimate the pressure in the cavity, i.e. P2. I know the areas, A1 which in practicality is an annulus and A2 which is a 600m pipe with i/d 8mm.
I would like to initially understand how to calculate the pressure drop across the annulus.
At the moment I'm assuming the pressure drop which is not useful...
ΔP (P1-P2) = 2 kPa
v1 = SQRT(2000*2/1.2)= 57 m/s
Q1 (flowrate) = v1 * 26 = 1482 m2.mm/s
v2 = Q1/A2 = 1482/46 = 32 m/s
Friction losses at exit pipe
Fluid exits container at pipe length of 600mm length (L) and 8mm inner diameter (d)
L/d = 75
f = 0.05
ΔP (P2-P3) = 0.5*1.2*322*75*0.05= 2.3 kPa
NOt quiet sure how to calculate losses at entry and exit of pipe.
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