A water pump is used to pump water from one large reservoir to another large reservoir that is at higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The dimensions and minor loss coefficients are provided. The pump's performance is approximated by Havaitable = Ho - av?, where shutoff head H, = 24.4 m of water column, a = 0.0678 m/Lpm², available pump head Havailable is in the units of meters of water column, and the capacity V is in the units of liters per minute (Lpm). Estimate the capacity delivered by the pump, assuming that the water temperature is 20 C. (Hint: the flowrate for this problem will not exceed 20 Lpm) 2-4 =7.85 m (elevation difference) D =2.03 cm (pipe diameter) KL entance0.50 (pipe entrance) KL vabe -17.5(valve) KL. how =0.92 (cach elbow-there are 5) KLe -1.05 (pipe exit) L- 176.5 m (total pipe length) e 0.25 mm (pipe roughness) Reservoir Reservoir Pump Valve

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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I have tried by assuming Vdot value, Put value in 4equation  that I got, 1. Flow rate equation 2. Reynold number equation 3. Haaland's equation 4. H(available) = H(required) 

I tried to solve it by iteration, However, I can't figure out, which value I could use with the iteration technique

A water pump is used to pump water from one large reservoir to another large reservoir that is at higher elevation. The free surfaces of both reservoirs are
exposed to atmospheric pressure. The dimensions and minor loss coefficients are provided. The pump's performance is approximated by Havattable
Ho – av?, where shutoff head H, = 24.4 m of water column, a = 0.0678 m/Lpm², available pump head Havailable is in the units of meters of water column,
and the capacity V is in the units of liters per minute (Lpm). Estimate the capacity delivered by the pump, assuming that the water temperature is 20 C.
(Hint: the flowrate for this problem will not exceed 20 Lpm)
2-4 =7.85 m (elevation difference)
D =2.03 cm (pipe diameter)
KL entrance"0.50 (pipe entrance)
KL valve -17.5 (valve)
KL cho =0.92 (cach elbow-there are 5)
KL. e 1.05 (pipe exit)
L- 176.5 m (total pipe length)
e 0.25 mm (pipe roughness)
Reservoir
Reservoir
Pump
Valve
Transcribed Image Text:A water pump is used to pump water from one large reservoir to another large reservoir that is at higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The dimensions and minor loss coefficients are provided. The pump's performance is approximated by Havattable Ho – av?, where shutoff head H, = 24.4 m of water column, a = 0.0678 m/Lpm², available pump head Havailable is in the units of meters of water column, and the capacity V is in the units of liters per minute (Lpm). Estimate the capacity delivered by the pump, assuming that the water temperature is 20 C. (Hint: the flowrate for this problem will not exceed 20 Lpm) 2-4 =7.85 m (elevation difference) D =2.03 cm (pipe diameter) KL entrance"0.50 (pipe entrance) KL valve -17.5 (valve) KL cho =0.92 (cach elbow-there are 5) KL. e 1.05 (pipe exit) L- 176.5 m (total pipe length) e 0.25 mm (pipe roughness) Reservoir Reservoir Pump Valve
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