Problem 3. Performance data for a pump are given in the table below. From a curve fit to the data, the pumpcurve is given by H₂ = H0 - C₂ Q² where H₁ = 180 ft and C₂ = 1.524 × 10-5 ft/gpm². This pump isused to move water at STP between two open reservoirs with an elevation increase of Az = 50 ft through acommercial 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 entranceand exit for the reservoirs are abrupt. (a) Plot the pump curve and system curve on the same figure. (b) Calculatethe flowrate with the gate valve open. (c) Calculate the equivalent length for the gate valve in order to reduce theflowrate by half. NOTE: Your calculations for this problem will require iteration because the friction factor for thiscase does depend on Q. Thus, it is recommended you use either EES (see solution for Example 19 from lecture)or Excel to get converged values.Q (gpm)050010001500200025003000Hp (ft)1791761651451198443

(b): Flow Rate with Gate Valve OpenThe flow rate where the pump curve intersects the system curve…

Answered: Problem 3. Performance data for a pump…

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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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
Q1
Can you do Part D of this question. Parts A - C have already been done.
A hydraulic motor has 7.5-in³ volumetric displacement. If it has a pressure rating of 1200 psi and receives oil from a 25-gpm theoretical flow-rate pump, find the motor a. Speed b. Theoretical torque C. Theoretical horsepower
Example 4: If the diameter at section 1 is D₁ = 0.5 m, and at section 2 the diameter D₂ = 0.2 m. All the other conditions are the same as in Exercise #3. What power in kilowatts and in horsepower must be supplied to the flow by the pump? Assume h₁ = 3 m of water and a₁ = α₂ = 1. Water is being pumped through a system. D₁ = 0.5 m Z₁ = 30 m P₁ = 70 kPa gage α₁ = 1.0 1 Pump Sual Z₂ = 40 m P2 = 350 kPa gage %₂ = 1.0 D₂ = 0.2 m Head loss in pipe = 3 m Water Q = 0.5 m³/s Properties: Water (10°C, 1 atm, Table A.5): y = 9810 N/m³
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Please give a detailed Handwritten solution.
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