Old MathJax webview

Old MathJax webview

Fluid mechanics:

Please help me with this 2 question. I really need it. For question 1, please attach the curve performance for the proposed pump. For question 2, please attach the microsoft excell. Hope you can provide me the answer for both question. Dont skip any calculation. Thnkyou so much

Help me with this question. Please attach the microsoft excell as well. I really need it. thnkyou

Answer only question 2

Question 1: Water at 20c is to be pumped at a minimum flowrate of 5 m/min from one large open tank to a second large open tank located 3 m above the first tank. The pipe diameter used is 10 cm, and the total length of the pipe is 50m. Minor loss coefficients for the fittings along the flow path are K=0.5 for entrance, L/D = 15 for an elbow at the suction line and Ki= 1.2 for exit. Your task is to suggest two centrifugal pumps (use internet source for vendor catalogues, don't forget to quote your source) and make recommendation on one to be used. Specify the pump model chosen, operating flow rate, speed, impeller size and power requirement In your report, please attach the pump performance curves of the proposed pumps. You should also include a graph showing the operating points, you can overlay your system curve on the pump performance curve. Question 2: Solve the question. Use computer software (Microsoft excel) to solve the problem. A self-priming centrifugal pump is used to pump water at 20C from a reservoir whose surface is 2.2 m below the centerline of the pump inlet. The pipe length from the submerged pipe inlet to the pump inlet is 2.5 m. There are only two minor losses in the piping system from the pipe inlet to the pump inlet a sharp-edged reentrant inlet (KL = 0.85), and a flanged smooth 90 regular elbow (KL = 0.3). The pump's required net positive suction head is provided by the manufacturer as a curve fit: NPSH required = 22 m +[0.0013 m/(Lpm)-]V2 where volume flow rate is in Lpm. Estimate the maximum volume flow rate (in units of Lpm) that can be pumped without cavitation. The roughness is 0.0028cm and the diameter is 5cm. Question 2: Solve the question. Use computer software (Microsoft excel) to solve the problem. A self-priming centrifugal pump is used to pump water at 20C from a reservoir whose surface is 2.2 m below the centerline of the pump inlet. The pipe length from the submerged pipe inlet to the pump inlet is 2.5 m. There are only two minor losses in the piping system from the pipe inlet to the pump inlet a sharp-edged reentrant inlet (KL = 0.85), and a flanged smooth 90 regular elbow (KL = 0.3). The pump's required net positive suction head is provided by the manufacturer as a curve fit NPSH required = 2.2 m +0.0013 m/(Lpm) ]V? where volume flow rate is in Lpm. Estimate the maximum volume flow rate (in units of Lpm) that can be pumped without cavitation The roughness is 0.0028cm and the diameter is 5cm