The inlet of a centrifugal pump is 7 ft above a water surface level. The reentrant inlet (KIN = 1) includes 12 ft of 2 in. pipe (k, = 0.0002 ft) and contains one long sweep elbow (Kel = 0.41). The 2 in. outlet line discharges to the atmosphere and contains two long sweep elbows and one check valve (Kcv = 2.1) in its 200 ft length. The discharge is 20 ft above the original water surface. Given the attached pump curve, determine the flow of water at 70°F (u = 1.059 x 10-5 ft²/s). 120 110 100 90 80 70 60 50 40 30 20 10 10 20 30 40 50 60 70 80 90 100 DISCHARGE, IN GALLONS PER MINUTE HEAD, IN FEET

The inlet of a centrifugal pump is 7 ft above a water surface level. The reentrant inlet (KIN = 1) includes 12 ft of 2 in. pipe (k, = 0.0002 ft) and contains one long sweep elbow (Kel = 0.41). The 2 in. outlet line discharges to the atmosphere and contains two long sweep elbows and one check valve (Kcv = 2.1) in its 200 ft length. The discharge is 20 ft above the original water surface. Given the attached pump curve, determine the flow of water at 70°F (u = 1.059 x 10-5 ft²/s). 120 110 100 90 80 70 60 50 40 30 20 10 10 20 30 40 50 60 70 80 90 100 DISCHARGE, IN GALLONS PER MINUTE HEAD, IN FEET

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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Albert bought a portable device to pump his truck tyres. On the manual, he found out that the device is a single stage, single-acting air compressor. Air delivery for this device is 30 bar at a speed of 1500 rev/min. The atmospheric condition of his location is 87 kPa and 20 ˚C, with a FAD of 0.22 m2/min. The clearance volume is 4% of the swept volume and the stoke/bore ratio is 1.3/1. Take “n” as 1.3, cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg K 1.Provide the answer values of the bore in mm to 2 decimal places.
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