Dear Administrator,
I am trying to find the flow in an 8" OD polyethylene pipe (7" ID) that is 1500 feet long, with a 120 foot head. Can you tell me how do calculate this, please?
This is going to be used for a micro hydro installation so I am trying to size the generator and turbine.
Thanks,
Wade
Gravity Water Flow Calculations
-
PipeFlowCalcs
- Posts: 57
- Joined: Sat Sep 17, 2011 8:50 am
Re: Gravity Water Flow Calculations
Here is the report that I have using pressure drop calculator
Calculation report
Pipe pressure drop calculator
1. volume flow rate (q):
q : 2058.0613 gpm US
3. pipe length (L):
L : 1500 ft
4. pipe diameter (D):
D : 7 in
5. pipe roughness (kr):
kr : 0.01 mm
6. density (ρ):
ρ : 1000 kg/m3
7. kinematic viscosity (ν):
ν : 1.006 mm2/s
9. K factor - minor lossed coefficient (K ):
K : 0.0
10. velocity (V):
V : 5.229544 m/s
12. friction coefficient (f):
f : 0.010204391
13. Reynolds number (Re):
Re : 924267.3
14. boundary layer (δ):
δ : 0.067162424 mm
17. pressure drop (p1-p2):
p1-p2 : 120 ftWS
Calculation report
Pipe pressure drop calculator
1. volume flow rate (q):
q : 2058.0613 gpm US
3. pipe length (L):
L : 1500 ft
4. pipe diameter (D):
D : 7 in
5. pipe roughness (kr):
kr : 0.01 mm
6. density (ρ):
ρ : 1000 kg/m3
7. kinematic viscosity (ν):
ν : 1.006 mm2/s
9. K factor - minor lossed coefficient (K ):
K : 0.0
10. velocity (V):
V : 5.229544 m/s
12. friction coefficient (f):
f : 0.010204391
13. Reynolds number (Re):
Re : 924267.3
14. boundary layer (δ):
δ : 0.067162424 mm
17. pressure drop (p1-p2):
p1-p2 : 120 ftWS
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