Problem 6. Consider again the pump and piping system of Problem 3 with the gate valve open. (a) Calculate theflowrate with two pumps in series. (b) Calculate the flowrate with two pumps in parallel. (c) Add to your plot fromProblem 3 curves for two pumps in parallel and two pumps in series. (d) Briefly discuss if it would be better tooperate with pumps in parallel or series and how your answer would change as the steepness of the systemcurve changes.

Answered: Image /qna-images/answer/6a1e2b3c-e07a-42e3-b78a-5b2b63d9859c.jpg

Answered: Problem 6. Consider again the pump and…

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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Problem 3. Performance data for a pump are given in the table below. From a curve fit to the data, the pump curve is given by Hp = Ho – C, Q² where Ho = 180 ft and C, = 1.524 × 10-5 ft/gpm?. This pump is used to move water at STP between two open reservoirs with an elevation increase of Az = 50 ft through a commercial steel pipe of length L = 1200 ft and diameter D = 1.0 ft that contains two 90° elbows (equivalent length of 30 diameters) and an open gate valve (equivalent length of 8 diameters). The flow entrance and exit for the reservoirs are abrupt. (a) Plot the pump curve and system curve on the same figure. (b) Calculate the flowrate with the gate valve open. (c) Calculate the equivalent length for the gate valve in order to reduce the flowrate by half. NOTE: Your calculations for this problem will require iteration because the friction factor for this case does depend on Q. Thus, it is recommended you use either EES (see solution for Example 19 from lecture) or Excel to get…
(previous test for fluids 3, exam prep) The pump whose performance data is plotted in Figure 4 was operating at a rotational speed of 1950 rpm and had an impeller diameter of 15 m. First, state the affinity law for centrifugal pumps when the impeller varies, then use the equations of the affinity laws to determine the head that would result in a capacity of 4000 L/min. Then, compute the performance of the pump impeller diameter changes to 35 m.
Use image below Pay attention to the question bolded In red
URGENT Please answer this problem in 30minutes. I need correct answers with complete and step by step solution. Box the final answers. Do not shortcut your solution. I will give an upvote if it satisfies. Thank you! If the velocity of water is 8 m/s and the pressure is 140 kPa on the discharge side of a pump. a. What is the head of the pump if the velocity is 4 m/s and the pressure is 90 kPa on the suction side of the pump? b. How much power is required to drive it if the diameter of the suction side is 600mm? c. If the pump is rated at 120hp, what is the efficiency of the pump neglecting energy losses in the system?
Analyze to select the type of the turbine when its diameter is 600 mm, rotational speed is 600 rpm and working under a water head of 120 meters. The buckets deflect the 100 mm diameter jet through an angle of 165°. Take the coefficient of velocity for the nozzle as 0.97. Use Table given below for selection of turbine. Sr. # Specific speed (rpm) Type of turbine 1 8-30 Pelton wheel with one nozzle 30 - 50 Pelton wheel with 2 or more nozzles 50-250 Francis turbine 4 250-1000 Kaplan turbine 2. 3.
Refer to the “composite performance chart” for a Goulds 3x4-10centrifugal pump operating at 1750 rpm. It shows the pump performance curve for 5 differentimpeller sizes, but also shows the HP required, efficiency, and NPSH required at differentoperating points.Describe the performance of this pump, using an 8 inch impeller and a required flow rate of175 gpm. Give head available, power required (BHP), efficiency, and NPSH req’d. What is the water horsepower (WHP)?
A gear pump has a 80-mm outside diameter, a 55-mm inside diameter, and a 25-mm width. If the actual pump flow rate at 2300 rpm and rated pressure is 140 LPM, calculate the Theoretical Flow Rate, QT (m3/s). (Hint: first calculate the Displacement Volume) Group of answer choices 0.00361 m3/s 0.00233 m3/s 0.00254 m3/s 0.00262 m3/s
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QUESTION 4 The figure below shows a fluid flow system that is designed to pump water at 20 °C from a lower vented reservoir to an elevated vented tank. Note that the drawing is not to scale as the dimensions of the reservoirs are very large relative to those of the piping system. The suction line entering the pump is specified as 20 m of 3½" schedule 40 commercial steel pipe; the discharge line from the pump is 180 m of 2%" schedule 40 commercial steel pipe. 15 m 3 m 31/2-in Schedule 40 steel pipe Fully open gate valve 21/2-in Schedule 40 steel pipe Flanged regular 90⁰ elbows Pump Flow Swing-type check valve valve Butterfly (K butterfly = 0.8) a. Starting from the Bernoulli equation (in 'head' form) for the situation where the liquid levels in the two reservoirs are reference points 1 and 2, derive the correct equation for pump head Hpump (m) in terms of volumetric flow rate Q (m³/s) and other process variables (e.g. z, f, L, D, K). b. Using Excel (or another suitable program), create…
Figure below shows the performance curve family of Model 5009 Centrifugal pumps of Taco Pump Inc., running at a fixed speed of N = 1160 rpm. For the pump with the impeller diameter D = 8.625 in., you are asked to determine the best efficiency point (BEP) of the given pump. What is the pump efficiency at BEP? HEAD IN FEET 50 0 0 0 0 40 20 10 O 81% 8.625" 30 (219mm). O 51% O 71% ○ 61% O Taco L/SEC 5 9.25" (235mm) 8.00" (203mm) 7.375" (187mm) 6.75" (171mm) 0 10 15 125 Model 5009 FI & CI Series 20 25 CURVES BASED ON CLEAR WATER WITH SPECIFIC GRAVITY OF 1.0 8 8 52 75% 77% 30 79% 1160 RPM FEBRUARY 19. 2002 35 40 45 REQUIRED NPSH olº 1.5HP (1.1KW) dot 17% Curve no. 2140 Min. Imp. Dia. 6.75" Size 6 x 5 x 9.0 50 55 60 75% 72% 250 375 500 625 FLOW IN GALLONS PER MINUTE 8% 2HP(1.5KW) 750 %09. 55% (2.2KW) 3HP 7.5HP(5.6KW) 2015 do 35% 875 FEET 15 12 -9 6 SHP(3.7KW) 3 0 10 8 NPSH 1000 HEAD IN METERS 5 KPo 45 -36 27 18 9 -0 100 -80 60 -40 2 -20 8 HEAD IN KILOPASCALS
Displacement (c): 0.2 in3/revShank diameter (d) = 0.625 in.Piston diameter (D) = 1.5 in.Rotation speed (n): 1725 RPMPressure (P): 600 PSIStroke (L) = 18in. a) Calculate the theoretical flow rate of the pump in in3/min and US GPM.Theoretical flow (Q) = Theoretical displacement (C) x Speed of revolution (n)Theoretical flow (Q) = 0.2 in3/rev x 1725 rpmTheoretical flow (Q) = 345 in3/min = 1.49 US GPM b) Calculate the cylinder output speed in in/s.Cylinder output speed (VS) = Piston side flow (Q) / Piston area (Ap)Cylinder output speed (VS) = (Displacement x Speed of revolution) / Piston area (Ap)Cylinder output speed (VS) = (0.2 in3/rev x 1725 RPM) / 1.77 in2Cylinder output speed (VS) = (0.2 in3/rev x 1725 RPM) / 1.77 in2Cylinder output speed (VS) = 196.02in/s = 196.02 / 60s = 3.20 in/s Questions: c) Knowing the output velocity (ram speed), calculate the rod side flow in GPM when the ram is extending. d) Calculate the piston exit time in seconds. e) Calculate the piston entry time in…
Specify the sizes of pipes (cast iron, schedule 40) and the size of the motor to be used for a pump to lift water at 40 Ips, from reservoir A to reservoir B. Consider the following data: Total static head 50 m Fittings & valves; Suction line 1 foot valve, 1 standard elbow, and 1 gate valve 1 check valve, 1 gate valve, 1 long sweep elbow, and 2 standard elbows Discharge line Length of straight pipes: Suction pipe Discharge pipe Absolute viscosity of water Absolute roughness of cast iron Darcy-Weisbach friction factor Water velocity 300 m 80 m 0.001002 Pa-s 0.00026 m 0.025 1.0 m/s to 2.75 m/s Neglect the head losses in the foot valve and at the pipe exit in the discharge reservoir, and do not use equal sizes for the suction and discharge pipes.

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