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Femme_physics
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Homework Statement
http://img37.imageshack.us/img37/638/pumpyu.jpg(the pump is between 1 and 2)
D1 = 300mm [diameter of pipe 1]
D2 = 250mm [diameter of pipe 2]
k(pressure lost due to valve) = 7
k(pressure lost due to 90 degrees pipe angle change) = 0.9
K (pressure lost due to entrance to a container) = 1
L1 = 12m [length of pipe 1]
L2 = 60m [length of pipe 2]
Energy conversation efficency of pipe = 75%
Q = 0.22 m^3/s [volumetric flow]
f1 = f2 = 0.02 [friction coeffecient in both pipe]
Fluid is water
Find static pressure at the entrace to the pipe
Find static pressure at the exit of the pump
Answers:
P1/lamda = 1.89m water
P2/lamda = 49.7m water
The Attempt at a Solution
I can't get p2/lamda as the right result :( http://img810.imageshack.us/img810/1269/scan0007o.jpg
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