Water (7 = 9.810 kN/m, vapor pressure 1.700 kPa (abs)) flows in a series pipeline system from a lower tank to an upper closed tank as shown in the figure below. Assume Patm = 101 kPa (abs). Closed tank, P- 30 kPa (gage) K K Ks Note : Dimensions are NOT to scale. 30 m Ритр K, K, Length, m Diameter, em friction factor, f K K K K K K K, 0.50 0.15 Suction Pipe 30 20 0.0164 Discharge Pipe 15 0.0150 2.10 0.30 0.30 10.00 1.00 80 (a) Derive the system curve equation and calculate the efficiency of the pump when power input is 40 kW and the pump is operating with flow rate of 66 L/s. (b) From this operating point, determine the maximum value of Y in order to prevent cavitation when NPSHR = 2.00 m and at the same flow rate of 66 L/s. %3D Flow

Water (7 = 9.810 kN/m, vapor pressure 1.700 kPa (abs)) flows in a series pipeline system from a lower tank to an upper closed tank as shown in the figure below. Assume Patm = 101 kPa (abs). Closed tank, P- 30 kPa (gage) K K Ks Note : Dimensions are NOT to scale. 30 m Ритр K, K, Length, m Diameter, em friction factor, f K K K K K K K, 0.50 0.15 Suction Pipe 30 20 0.0164 Discharge Pipe 15 0.0150 2.10 0.30 0.30 10.00 1.00 80 (a) Derive the system curve equation and calculate the efficiency of the pump when power input is 40 kW and the pump is operating with flow rate of 66 L/s. (b) From this operating point, determine the maximum value of Y in order to prevent cavitation when NPSHR = 2.00 m and at the same flow rate of 66 L/s. %3D Flow

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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Question

Help please this question A and B

Water (y = 9.810 kN/m2, vapor pressure = 1.700 kPa (abs)) flows in a series pipeline
system from a lower tank to an upper closed tank as shown in the figure below.
Assume Patm = 101 kPa (abs).
Closed tank, P-30 kPa (gage)
Ks
K K-
Note : Dimensions are NOT to scale.
30 m
K2
K3
Pump
K,
K.
Length, m Diameter, em frietion factor, K K K K K K K,
0.50 0.15
Suction Pipe
30
20
0.0164
Discharge Pipe
80
15
0.0150
2.10 0.30 0.30 10.00 1.00
(a)
Derive the system curve equation and calculate the efficiency of the pump when
power input is 40 kW and the pump is operating with flow rate of 66 L/s.
(b)
From this operating point, determine the maximum value of Y in order to prevent
cavitation when NPSHR = 2.00 m and at the same flow rate of 66 L/s.
Flow

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