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Solution Library
Calculate Suction Head For Pump
Question
A pump is drawing water from a reservoir through a suction pipe of 10.5 m long with the inside diameter of 35 mm at a rate of 2.3 l/s. The pipe is smooth so that the friction factor is given by f = 0.316 Re-0.25 where Re is the pipe Reynolds number and there are other minor losses like the pipe entrance and a control valve with a total loss of 0.58 m. If the maximum net positive suction head of the pump is 2.1 m calculate the suction head for a satisfactory pump operation without the risk of cavitation. Assume water density and dynamic viscosity as p = 1000 kg/m3 and μ = 0.001 kg/ms, respectively and take water vapors pressure as 5.5 kPa and the atmospheric pressure as 100.3kPa.
Assumptions: Take g = 9.81 m/s2 and the density and kinematic energy of water as 1000 kg/m3 and 1 × 10-6 m2/s
Summary
The question belongs to Chemistry and it discusses about calculating the suction head for pump operation without risk cavitation.
Total Word Count 120
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