A single pump and system have characteristics as shown on the graph below. Based on this information, estimate: (a) The flow rate with one pump online. (b) The flow rate if the pump's speed is doubled (c) The flow rate of two identical pumps operating in parallel (original pump speeds) (d) The flow rate of two identical pumps operating in series (original pump speed) (e) The flow rate if the system's static head doubles (f) Pump head (original system) if a valve is opened until the flow rate is 5.5 cfs 350 300 250 200 150 100 50 6 8 10 12 Flow Rate (cfs) -hp(req) - hp(avai) (4) peaH

A single pump and system have characteristics as shown on the graph below. Based on this information, estimate: (a) The flow rate with one pump online. (b) The flow rate if the pump's speed is doubled (c) The flow rate of two identical pumps operating in parallel (original pump speeds) (d) The flow rate of two identical pumps operating in series (original pump speed) (e) The flow rate if the system's static head doubles (f) Pump head (original system) if a valve is opened until the flow rate is 5.5 cfs 350 300 250 200 150 100 50 6 8 10 12 Flow Rate (cfs) -hp(req) - hp(avai) (4) peaH

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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For the following pump-pipe system below, how will the discharge and pump head change if a smaller pump in the same family is used to replace the current pump? Increase or decrease? EB EA Head (ft) 350 300 250 225 200 150 100 50 0 0 5 10 O Pump head will decrease; discharge will decrease. O Pump head will increase; discharge will increase. O Pump head will increase; discharge will increase. O Pump head will decrease; discharge will increase. 15 20 Discharge (cfs) System head curve 25 H₂ -Intersection point Pump characteristics 30 35 40
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The system curve for a water supply system is shown in the figure below (i.e., red curve). If a 7-inch pump is operating at 1160 rpm, what will be the discharge of water through the system in GPM? Curve no. 2175 Min. Imp. Dia. 6.25" Size 5 x 4 x 7.0 40 HEAD IN FEET 30 25 W 20 10 5 L/SEC 5 7.00" (178mm) 6.75" (171mm) 6.50" (165mm) 15 6.25" (159mm) 7.25" (184mm) O 150 GPM Laco O 350 GPM O 450 GPM O 250 GPM 10 Model 4075 FI & CI Series 15 70% 20 "Dede de 088 A. 25 REQUIRED NPSH 90 1160 RPM November 1, 2010 TM 90- N 00 30 8800 877 1HP(.75KW) de (5 60% ox 35 -10% 5% Tolo 10. 3HP(2.2KW) 2HP(1 5KW). 15HP(1 1KW). CURVES BASED ON CLEAR WATER WITH SPECIFIC GRAVITY OF 1.0 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 75 150 225 300 375 450 525 600 675 FLOW IN GALLONS PER MINUTE 45 LOWONG FEET 15 12 9 6 0 6 5 + 2 1 750 NPSH HEAD IN METERS 45 36 OG KPO 27 18 -9 -70 -60 -50 -40 20 10 -0 HEAD IN KILOPASCALS
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