please answer in 60 minutes i will surely upvote , just answer all the points , to the point please X=31
Posted: Thu Jun 02, 2022 10:22 am
please answer in 60 minutes i will surely upvote , just answer
all the points , to the point please
X=31
A5. A centrifugal pump is required to deliver water at a flow rate of X*6 m³/hr from a low-level tank to another 7 m higher. Here X is the sum of all digits of your URN. For example, if your URN is 6645862 then X = 37 and flow rate = 37*6=222 m³/hr. The pipework linking the tanks consists of 30m of 120 mm diameter pipe with internal roughness height, e = 0.25 mm. In the pipe configuration, there is a control valve equivalent to 85 pipe diameters. Additionally, it has 3 standard elbow bends, 2 open gate valves and a ½ open gate valve. a) Calculate the mean velocity of the flow in the pipeline and, assuming the viscosity of the water is 0.001 kg/m s, calculate the Reynolds number, Re, for the pipe flow and the friction factor using the Churchill equation below. 0.9 1 0.27e 7 = -4log₁0 D Re [7 marks] b) Determine the effective length of the pipe allowing for minor losses using the table below and calculate the head that the pump must supply to deliver the flowrate required. Minor losses: number of diameters of pipe equivalent Component length Pipe entrance 25 Open gate valve 7.5 ½ open gate valve 200 Standard elbow 35 Pipe exit 50
c) Using the pump characteristics supplied in Figure A5 determine how many intermediate pumping stations will be required and what diameter impeller would you select. (1m = 3.28 ft and 1 inch = 0.0254 m). [6 marks] d) What is the efficiency of the pump and what is the total power requirement? [4 marks] ENG1089/4/SEMR2/21/22 (0 hand-out) Goulds Pumps RPM 3540 CDS:2102-4 Model: 3196/13196 Size: 1.5X3-8 Imp. Dwg. 767860 Pamem 56091 Eye Area: 4.43 in² ¹90 DUCTILE IRON CONSTRUCTION 80 -70 60 50 40 30 20 TOTAL HEAD (feet) 325 300 275 15 250 225 200 175 6.5 150 5.5 1255 100 75 50 0 ITT Industries -NASHE 50 T 10 100 20 CENTRIFUGAL PUMP CHARACTERISTICS 150 30 K 40 S 50 10Hp 7:5Hp CAPACITY 200 15Hp 250 8 20Hp 50 60 Figure A5 25Hp 300 70 350 400 80 90 GPM m³/h 8 8 9 TOTAL HEAD (m)
all the points , to the point please
X=31
- Please Answer In 60 Minutes I Will Surely Upvote Just Answer All The Points To The Point Please X 31 1 (111.96 KiB) Viewed 11 times
- Please Answer In 60 Minutes I Will Surely Upvote Just Answer All The Points To The Point Please X 31 2 (109.5 KiB) Viewed 11 times
c) Using the pump characteristics supplied in Figure A5 determine how many intermediate pumping stations will be required and what diameter impeller would you select. (1m = 3.28 ft and 1 inch = 0.0254 m). [6 marks] d) What is the efficiency of the pump and what is the total power requirement? [4 marks] ENG1089/4/SEMR2/21/22 (0 hand-out) Goulds Pumps RPM 3540 CDS:2102-4 Model: 3196/13196 Size: 1.5X3-8 Imp. Dwg. 767860 Pamem 56091 Eye Area: 4.43 in² ¹90 DUCTILE IRON CONSTRUCTION 80 -70 60 50 40 30 20 TOTAL HEAD (feet) 325 300 275 15 250 225 200 175 6.5 150 5.5 1255 100 75 50 0 ITT Industries -NASHE 50 T 10 100 20 CENTRIFUGAL PUMP CHARACTERISTICS 150 30 K 40 S 50 10Hp 7:5Hp CAPACITY 200 15Hp 250 8 20Hp 50 60 Figure A5 25Hp 300 70 350 400 80 90 GPM m³/h 8 8 9 TOTAL HEAD (m)