DEIGN OF PIPE UNDER GRAVITY FROM A SOURCE

Mian Zafar T.W.W.Course: Location = Aman Garh

INPUT DATA

DIAMETER OF THE PIPE 0.127 m Pipe sizes in inches

ROUGHNESS "N" VALUES FOR 0.012 & m

CONCRETE, GI, PVC PIPES ARE 0.013, inches m

0.012 & 0.01RESPECTIVELY 1 0.0254

SLOPE OF THE PIPE 0.025 m/m 2 0.0508

3 0.0762

OUTPUT DATA 4 0.1016

X.SECTIONAL AREA "A" OF THE PIPE 0.012661 6 0.1524

INSIDE PERIPHERY "P" OF THE PIPE 0.39878 m 8 0.2032

HYDRAULIC RADIUS "R" 0.03175 m 9 0.2286

USING MANNING,S EQUATION FOR 1.320995 m/sec 12 0.3048

INSIDE VELOCITY 15 0.381

DISCHARGE 16.73 Lps 18 0.4572

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GI & PVC PIPES UNDER PRESURE CONNECTING DIRECTLY TO THE PUMPName of Scheme: Habib Ghafoor TWWC Location: Misri Banda

Pipe sizes in inchesINPUT DATA & mm

inches mmDISCHARGE 10 Lps 1 25.4DIAMETER OF THE PIPE 101.6 mm 1.5 38.1LENGTH OF THE PIPE 450 m 2 50.8SUCTION HEAD 4 m 2.5 63.5DELIVERY HEAD 9 m 3 76.2USE THE VALUE OF"C"FOR GI &PVC 140 4 101.6 PIPES 120 & 140 RESPECTIVELY 5 127ELECTRIC AND DIESEL EFFICIENCIES 0.6 6 152.4ARE 0.6 & 0.4 RESPECTIVELY 8 203.2USE THE LIMITING VELOCITIES OF 2.8 1.5 m/sec&1.5 M/SEC FOR GI &PVC PIPES

OUT PUT DATA

X-SECTIONAL AREA 0.0081VELOCITY INSIDE THE PIPE 1.234 m/sec

6.926 mMINOR LOSSES 1.039 mTOTAL HEAD 20.965 mPUMP HORSE POWER "HP" REQUIRED 4.60 HP

IF VELOCITY INSIDE THE PIPE IS OK ,THEN USE OK THAT SIZE,OTHER WISE TRY ANOTHER ONE

Designed by:_____________________WMO

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HEAD LOSS DUE TO FRICTION(Hf)