MINOR LOSSES Sambungan Pipa (fittings): Flow through run Flow through branch Return bend 45 o elbow 90 o elbow 45 o street elbow 90 o street elbow 90 o long radius elbow Katup (valves): Globe valve Gate valve Butterfly valve Angle valve Foot valve Ball valve Check valve Enlargement : Sudden enlargement Gradual enlargement Contraction : Sudden constraction Gradual constraction Exit loss Entrance loss T e 2 L f D L K g 2 V K h K = koefisien tahanan (resistance coefficient) L e = Panjang ekivalen f T = faktor gesekan pada turbulen penuh
MINOR LOSSES Sambungan Pipa (fittings): Flow through run Flow through branch Return bend 45 o elbow 90 o elbow 45 o street elbow 90 o street elbow 90 o.
Dec 14, 2015
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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
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