Question

Mechanical Lab II. Please answer asap with clear work. Thank you!

1. A centrifugal pump performance data are shown in the following table for water. Pump speed-2500 RPM Pa or P2 (bar) P. or Pi (bar) Volume of water(L Time (sec) Input-Power (W) -0.3 20 60 100 For this data set, calculate the following i. Pump discharge capacity Q (LUs and GPM) ii. Pump head H (m and ft) iii. Fluid power Pr (Watt) iv. Brake power Pb (Watt) v. Pump overall efficiency η (%) vi. Flow rate coefficient Cq (or dimensionless specific capacity vii. Head coefficient Ch (or dimensionless specific head) vii. Power coefficient Cp (or dimensionless specific power) [3 points] ix. If this is the maximum pump efficiency, the specific speed of the pump.[3 points] 3 points] 3 points] 3 points] [1 point] 1 point] [3 points 3 points] 1 m3 1000 L, 1 Gallon 3.78541 Liters, 1 m 3.281 ft, 1 bar 100,000 Pa, Specific weight of water- 9.8 KN/m3 Suction pipe diameter and discharge pipe diameter are equal, the height difference between suction pressure gauge and discharge pressure gauge 0 Efficiency of the motor 90%, Pump impeller diameter-100 mm

Answer 1

bar, 0.3 ba Volum 20 Lit tind oo Jcc tunt 20 3000 35 23 G PNM 2 Pump huad. 100000 g Iooox 9.31

39s6 29so 44G HP , ump, 33,29 0,3329 100 shaft Brati ouw fB: 99-34 IN Ovesall elhiienc พา010( .332 0.9 0.29 96 u too xto 2

erin Head coutpant tI 13. D89γ 161 Shat Pow UN lOo 疒 6 0 Cp-) 6-13329