A Franklin Electric 250×250-400 centrifugal pump lifts water from a river to a reservoir (pump cu…

A Franklin Electric 250x250-400 centrifugal pump lifts water from a river to a reservoir (pump curve attached). The static lift from the river to the pump is 3 metres and from the pump to the reservoir is 50 metres. The pump has an impeller diameter of 410mm and operates at a speed of 1480 rpm. The details of the suction and discharge pipes are included in Table 2. Table 2: Details of the pipeline for Question 4 Pipe Length (m) Material Diameter (mm) 2K Cast iron 350 Suction 15 3.44 Cast iron 350 Discharge 235 2.7 Note: The sum of the minor losses, 2K, include the foot valve in the river and the entrance to the reservoir. Plot the system resistance curve for increments of 50 L/s discharge on your copy of the pump curve. Use the Moody diagram and the Darcy-Weisbach equation to determine friction headloss. Ensure you provide a marked copy of a Moody diagram indicating your selections for f Determine: a) the operating point for this pump. Clearly state the pump head, discharge, and efficiency at the operating point. b) the input power required at the pump shaft c) the potential for cavitation at the operating point if the local atmospheric head is 1005 hPa

A Franklin Electric 250×250-400 centrifugal pump lifts water from a river to a reservoir (pump curve attached). The static lift from the river to the pump is 3 metres and from the pump to the reservoir is 50 metres. The pump has an impeller diameter of 410mm and operates at a speed of 1480 rpm. The details of the suction and discharge pipes are included in Table 2. Plot the system resistance curve for increments of 50 L/s discharge on your copy of the pump curve. Use the Moody diagram and the Darcy-Weisbach equation to determine friction headloss. Ensure you provide a marked copy of a Moody diagram indicating your selections for f. Determine: the operating point for this pump. Clearly state the pump head, discharge, and efficiency at the operating point. the input power required at the pump shaft the potential for cavitation at the operating point if the local atmospheric head is 1005 hPa

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