Post on 14-Dec-2015
MINOR LOSSES
Sambungan Pipa (fittings):Flow through runFlow through branchReturn bend45o elbow90o elbow45o street elbow90o street elbow90o long radius elbow
Katup (valves): Globe valveGate valveButterfly valveAngle valveFoot valveBall valveCheck valve
Enlargement :
Sudden enlargement
Gradual enlargement
Contraction :
Sudden constraction
Gradual constraction
Exit loss
Entrance loss
Te
2
L
fD
LK
g2
VKh
K = koefisien tahanan (resistance coefficient)
Le = Panjang ekivalen
fT = faktor gesekan pada turbulen penuh
Sudden Enlargement
Grafik/Tabels
m12V
D
D1K
s
m12V
g2
VKh
2
2
1
2
L
Gradual Enlargement
Sudden Construction
Gradual Construction
Entrance Loss
Exit Loss
g2
Vh0.1K
2
L
Globe Valve Gate Valve Butterfly Valve
Ball Valve Angle Valve Check Valve
Foot Valve Poopet disk
Foot Valve Hinged disk
Fitting
Kekasaran pada berbagai jenis pipa