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Problem 1 (60 points; pipes in parallel & EGL/HGL) A large-size pipeline carrying a water flow (Q) of 0.2 m/s branches into t
(a) Please calculate the total nead loss from Section A to Section B (marked by red dash lines). (b) Assuming the total head
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Answer #1

PAGE 1

Soln 300m QiA,V 100m P2-AV 30om Pipe Line f001 So0, di0-2 M Rpe Line 2 2800m, dz0.3m, For pipes in parallel, + 0.3 O. 2 = 0-2

PAGE 2

Total bead loss in pipe Total bead Aoss in pipe(2). Total head lois in pipe Minor loss at bends Major loss +Kiv 2gd 29 29 2 .

PAGE 3

V, 2.026 V2 =) I423 4 V2 V Substitute in 4x 14234V2+ 9V225 S 1-7354 m/s From 24702 m/s Tbere-fore, total head loss from secti

PAGE 4

Whn the tiuid Hlows aloog the pipe there is loss of head Cenergy and the tota energy decreases in the directon of fiow. If -t

PAGE 5

HA To tal head at junction A 10om AB Head lo due to friction = flv 2gd 2 0.01X100x(2-410) 2x 9-81x 0.2 =555m Total bead at B

PAGE 6

Total bead at C.- He- hfec = 48.103 4.665 93.44m At c, there is bead loss due to be nd 2 Ky 5x (2-4+02) 29 0.4665m 2 x9.81 To

PAGE 7

A BCD = EGL GL EFGH 02 99-689E 8-103 B 98 97-8 F E.G.L 96 H-G.L 94 92-93 92-66 92 42 91-11 Н 90

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