Engineering, 29.08.2019 16:30 niti1409

Asingle-stage centrifugal pump is to be used to pump water through a vertical distance of 30m at the rate of 45litres/s. suction and delivery pipes will have a combined length of 36m and a friction factor of 0.006. both will be 150mm diameter. losses at the valve, etc are estimated to total 2.4 times the velocity head in the pipe. the basic design of the pump has a dimensionless specific speed of 0.074 revs, forward curved impeller blades with an outlet angle equal to one-tenth of the diameter. the blades themselves occupy 5% of the circumference. if a manometric efficiency (neglect whirl slip)of 75% may be expected, determine a suitable impeller diameter.

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, makaylashrout77

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Answers: 2

continue

Engineering, 04.07.2019 18:10, settasav9641

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

Answers: 3

continue

Engineering, 04.07.2019 18:10, Candi9697

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

Answers: 2

continue

Engineering, 04.07.2019 18:10, nandalabella06

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure

Answers: 2

continue

You know the right answer?

Asingle-stage centrifugal pump is to be used to pump water through a vertical distance of 30m at the...