Performance data for a pump are listed in the following table.Hp (ft) 179 176 165 145 119 84 43Q (gpm) 0 500 1000 1500 2000 2500 3000(a)  Plot the system curve for the pump to move water between two open reservoirs,through 2000 ft of 12 in. inner diameter commercial steel pipe containing 5 standard 90°elbows and 2 open gate valves, if the elevation increase is 50 ft. Explain how plot was made.(b)  Determine the operating point, i.e., the volumetric flowrate in gpm and pump headin ft.(c) Calculate the power input (horsepower) to the pump at the operating point,assuming its efficiency is 80%. please perform all calculations

Problem-4: The characteristics for a pump are given in the table below. The pump is required to left water against static head Az = EN" m. The pipe arrangement has a total length L the pump discharge, head, efficiency and power for the given pipe system. 200, d = 0.1 m and f= 0.016. Find %3D Q (L/s) 10 20 30 35 42 50 Hp (m) efficiency % 210 201 180 150 129 93 48 30 58 80 85 86 74 EN=62 Hp = Az + h, = Az + 12.1 d P = 757

a) Develop an equation for the head (in ft) developed by the pump described by the chartas a function of flow rate (in gpm) when the pump uses a 9 ¾” impeller. b) Develop an equation for the pump efficiency as a function of flow rate (gpm) when the pump uses a 9 ¾” impeller.

Two centrifugal pumps are connected in series in a given pumping system. Plot total head Δh against capacity Q pump and system curves and determine the operating points for (a) only pump 1 running (b) only pump 2 running (c) both pumps running on the basis of the following data: operating data for pump 1  Δh1 m, 50.0 49.5 48.5 48.0 46.5 44.0 42.0 39.5 36.0 32.5 28.5 Q m3 /h, 0 25 50 75 100 125 150 175 200 225 250 operating data for pump 2 Δh2 m, 40.0 39.5 39.0 38.0 37.0 36.0 34.0 32.0 30.5 28.0 25.5 Q m3 /h, 0 25 50 75 100 125 150 175 200 225 250 data for system Δhs m, 35.0 37.0 40.0 43.5 46.5 50.5 54.5 59.5 66.0 72.5 80.0 Q m3 /h, 0 25 50 75 100 125 150 175 200 225 250

The efficiency at the best operating point is: Head (ft) O-4% O 23% O 28% 5% 85.00 80.00 75.00 70.00 65.00 60.00 55.00 50.00 45.00 40.00 35.00 30.00 25.00 20.00 15.00 10.00 Pump Curve System Curve Effe. Poly. (Pump Curve Poly. (System Curve) Operating Point Chart 20 30 40 Q (gpm) 50 60 70 35% 30% 25% 20% 15% 10% 5% 0% -5% -10% -15% -20% -25%

The rate of flow of water in a pump installation is 60.6 kg/s. The intake static gage is 1.22 m below the pump centreline and reads 68.95 kPa gage;the discharge static gage is 0.61 m below the pump centre line and reads 344.75 kPa gage. The gages are located close to the pump as much as possible. The area of the intake and discharge pipes are; 0.093 m2 and 0.069 m2 respectively. The pump efficiency is 70%. Take density of water equals 1000 kg/m3. What is the hydraulic power in kW?

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

An acceptance test was conducted on a centrifugal pump having a suction pipe 25.4 cm in diameter and a discharge pipe 12.7 cm in diameter. Flow was 186 m³/hr of clear cold water. Pressure at suction was 114.3 mmHg vac and discharge pressure was 107 kPag at a point 91 cm above the point where the suction pressure was measured. Input to the pump was 15 hp. a. Determine the pump efficiency b. If the pump runs at 1750 rpm, what net flow, head, and brake hp would be developed and required if the pump speed were increased to 3500 rpm? Assume constant efficiency.

Q No. 5: The diameter of side of a pump is 6 inches and that of the intake pipe is 8 inches. The pressure gauge at discharge reads 30 psi and vacuumed gauge at intake reads 10 inches of Hg. If Q=3cfs of water and the brake horsepower is 35. Find the efficiency of the pump. There are no losses. Note : Please Solve as Per Question's Statement. Need a Neat and Clear Solution.See Attached Picture For Detail .

The performance data of a water pump follow the curve fit Havailable = H0 − aV.2 , where the pump’s shutoff head H0 = 7.46 m, coefficient a = 0.0453 m/(Lpm)2 , the units of pump head H are meters, and the units of V. are liters per minute (Lpm). The pump is used to pump water from one large reservoir to another large reservoir at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The system curve simplifies to Hrequired = (z2 − z1) + bV.2 , where elevation difference z2 − z1 = 3.52 m, and coefficient b = 0.0261 m/(Lpm)2 . Calculate the operating point of the pump (V.operating and Hoperating) in appropriate units (Lpm and meters, respectively).