Pump Patm = 100 kPa D = 3 cm The pump in Fig. P3.146 draws gasoline at 20°C from a reservoir. Pumps are in big trouble if the liquid vaporizes (cavitates) before it enters the pump. (a) Neglecting losses and assuming a flow rate of 65 gal/min, find the limita- tions on (x, y, z) for avoiding cavitation. (b) If pipe fric- tion losses are included, what additional limitations might be important? Gasoline, SG = 0.68 P3.146

Pump Patm = 100 kPa D = 3 cm The pump in Fig. P3.146 draws gasoline at 20°C from a reservoir. Pumps are in big trouble if the liquid vaporizes (cavitates) before it enters the pump. (a) Neglecting losses and assuming a flow rate of 65 gal/min, find the limita- tions on (x, y, z) for avoiding cavitation. (b) If pipe fric- tion losses are included, what additional limitations might be important? Gasoline, SG = 0.68 P3.146

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

See similar textbooks

Similar questions

The long pipe in Fig. P3.172 is fi lled with water at 20 ° C.When valve A is closed, p 1 - p 2 = 75 kPa. When the valveis open and water fl ows at 500 m 3 /h, p 1 - p 2 = 160 kPa.What is the friction head loss between 1 and 2, in m, for thefl owing condition?
Q5: Steady, one-dim., comp. flow, A, = 0.016 m?, v, = 120 m-s", P1=2.65 kg-m, pi = 170 kPa A2 = 0.020 m?, v2 = 80 m-s", p2 = 88 kPa Find the force exerted by fluid on the diverging duct?
Water at 20 ° C, in the pressurized tank of Fig. P3.117, fl owsout and creates a vertical jet as shown. Assuming steadyfrictionless fl ow, determine the height H to which thejet rises.
Water at 20 ° C flows steadily through the piping junction inFig. P3.32, entering section 1 at 20 gal/min. The averagevelocity at section 2 is 2.5 m/s. A portion of the flow isdiverted through the showerhead, which contains 100 holesof 1-mm diameter. Assuming uniform shower flow, estimatethe exit velocity from the showerhead jets.
Please Answer Q2.
For the pipe-fl ow-reducing section of Fig. P3.54, D 1=8 cm, D 2 = 5 cm, and p 2 = 1 atm. All fl uids are at 20 ° C. IfV 1 = 5 m/s and the manometer reading is h =58 cm, estimatethe total force resisted by the fl ange bolts.
In Fig. P3.131 both fl uids are at 20 ° C. If V 1 = 1.7 ft/s andlosses are neglected, what should the manometer readingh ft be?
You wish to water your garden with 100 ft of 5/8-in-diameterhose whose roughness is 0.011 in. What will be the delivery,in ft3/s, if the gage pressure at the faucet is 60 lbf/in2?If there is no nozzle (just an open hose exit), what is thethe maximum horizontal distance the exit jet will carry?
Consider Fig. P3.36 as a general problem for analysis of amixing ejector pump. If all conditions ( p , ρ , V ) are knownat sections 1 and 2 and if the wall friction is negligible,derive formulas for estimating ( a ) V 3 and ( b ) p 3 .
P3.5 Water at 20°C flows through a 5-in-diameter smooth pipe at a high Reynolds number, for which the velocity profile is approximated by u = U.(v/R)/8, where U, is the cen- terline velocity, R is the pipe radius, and y is the distance measured from the wall toward the centerline. If the cen- terline velocity is 25 ft/s, estimate the volume flow rate in gallons per minute.
P3.21 For the two-port tank in Fig. E3.5, let the dimensions remain the same, but assume V₂ = 3 ft/s and that V₁ is unknown. If the water surface is rising at a rate of 1 in/s, (a) determine the average velocity at section 1. (b) Is the flow at section 1 in or out?
The large tank of incompressible liquid in Fig. P3.143 is atrest when, at t = 0, the valve is opened to the atmosphere.Assuming h ≈ constant (negligible velocities and accelerationsin the tank), use the unsteady frictionless Bernoulliequation to derive and solve a differential equation for V ( t )in the pipe.