For satured steam in steel pipe under 8 Kgf/cm2 (113.7 psi)
and
D=0.10226 m (4" schedule 40)
k=0.0001m (0.0000305 ft)
V=30 m/s (9.14 ft/s)
v=0.0000035 m2/s (0.0000011 ft2/s)
L=500 m (152.4 ft),
by Colebrook and Darcy formulas, we have:
hf=4,442.73 m (1,354.14 ft)
But, by Spirax Sarco...
For pipe design flowing incompressible fluid, I use:
Darcy equation hf = f*(LV^2)/(2gD) and
Colebrook equation f = 0.25*[-log(0.27*k/D + 2.51/(Re*f^0.5))]^-2
where:
hf = friction loss
f = friction factor
L = length
V = velocity
g = gravity
D = diameter
k = equivalent roughness
Re =...
For pipe design flowing incompressible fluid, I use:
Darcy equation hf = f*(LV^2)/(2gD) and
Colebrook equation f = 0.25*[-log(0.27*k/D + 2.51/(Re*f^0.5))]^-2
where:
hf = friction loss
f = friction factor
L = length
V = velocity
g = gravity
D = diameter
k = equivalent roughness
Re =...
