Fluid machinery PROJECT IN ME 3214FLUID MACHINERYPROBLEM:A radial flow reaction turbine has the following characteristics: Circumferential areanr = 0.82 ,r, = 25 cm, r2 =at entrance and exit: Act = 258 cm? ,Acz = 180 cm? ; Q = 0.112.5 cm, B1 = 140°, B2 = 155°, az = 90°, ø, = 0.75, and nayd = 92 % . Assume shocklesssecentrance of water to blade.Find:(a)(b) The hydraulic Torque, in kJThe rotative speed under these conditions, in rpmThe Brake Power in kW(c)(d) the coefficient of velocity cp at entrance to blade(e)The net Head, in m.(f)Draw the velocity diagram and label.BEVAMAC AK

Ac1=258 cm2 or 258×10-4 m2Ac2=180 cm2 or 180×10-4 m2Q=.1 m3secηT=.82r1=25 cm or .25 mr2=12.5 cm or…

A radial flow reaction turbine has the following characteristics: Circumferential area at entrance and exit: A = 258 cm² , Ac2 = 180 cm2 ; Q = 0.1 m 12.5 cm, B, = 140°, Bz = 155°, az = 90°, ø, = 0.75, and nkyd = 92 % . Assume shockless Ar = 0.82 ,r = 25 cm,r = sec entrance of water to blade. Find: (a) The rotative speed under these conditions, in rpm (b) The hydraulic Torque, in kJ (c) The Brake Power in kW

A radial flow reaction turbine has the following characteristics: Circumferential area at entrance and exit: A = 258 cm² , Ac2 = 180 cm2 ; Q = 0.1 m 12.5 cm, B, = 140°, Bz = 155°, az = 90°, ø, = 0.75, and nkyd = 92 % . Assume shockless Ar = 0.82 ,r = 25 cm,r = sec entrance of water to blade. Find: (a) The rotative speed under these conditions, in rpm (b) The hydraulic Torque, in kJ (c) The Brake Power in kW

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

An existing impulse turbine-generator installation operates at 450 rpm under a net Head of 520 m. The output current is 60 cycles per second. If a single 18-cm diameter waterjet is used, Cv = 0.98, Øe = 0.45 and ηT = 0.85. Find the flow through turbine in m3/sec.
setup a Bernoulli's equation in head form that can be used to determine the pump power requirement. Which two locations are you selecting to set up the Bernoulli's equation? What are the state (elevation h, pressure P, velocity u) as the two locations?
The 32-in pump in Fig. is used at 1170 r/min in asystem whose head curve is Hs (ft) = 100 + 1.5Q2, with Qin thousands of gallons of water per minute. Find the dischargeand brake horsepower required for (a) one pump,(b) two pumps in parallel, and (c) two pumps in series.Which configuration is best?
Water fl owing in a smooth 6-cm-diameter pipe entersa venturi contraction with a throat diameter of 3 cm.Upstream pressure is 120 kPa. If cavitation occurs in thethroat at a fl ow rate of 155 gal/min, what is the estimatedfl uid vapor pressure, assuming ideal frictionless fl ow?( a ) 6 kPa, ( b ) 12 kPa, ( c ) 24 kPa, ( d ) 31 kPa, ( e ) 52 kPa
A fi reboat draws seawater (SG = 1.025) from a submergedpipe and discharges it through a nozzle, as in Fig. P3.176.The total head loss is 6.5 ft. If the pump efficiency is75 percent, what horsepower motor is required to drive it?
A fi reboat pump delivers water to a vertical nozzle with a3:1 diameter ratio, as in Fig. . If friction is neglectedand the fl ow rate is 500 gal/min, how high will the outletwater jet rise?( a ) 2.0 m, ( b ) 9.8 m, ( c ) 32 m, ( d ) 64 m, ( e ) 98 m
A Francis radial-flow hydroturbine has the following dimensions, where location 2 is the inlet and location 1 is the outlet: r2 = 6.60 ft, r1 = 4.40 ft, b2 = 2.60 ft, and b1 = 7.20 ft. The runner blade angles are ?2 = 82° and ?1 = 46° at the turbine inlet and outlet, respectively. The runner rotates at n. = 120 rpm. The volume flow rate at design conditions is 4.70 ×106 gpm. Irreversible losses are neglected in this preliminary analysis. Calculate the angle ?2 through which the wicket gates should turn the flow, where ?2 is measured from the radial direction at the runner inlet. Calculate the swirl angle ?1, where ?1 is measured from the radial direction at the runner outlet. Does this turbine have forward or reverse swirl? Predict the power output (hp) and required net head (ft).
The Tupperware hydroelectric plant on the BlackstoneRiver has four 36-in-diameter turbines, each providing447 kW at 200 r/min and 205 ft3/s for a head of 30 ft. Whattype of turbine are these? How does their performancecompare with Fig. ?
The water pump in Fig. P6.108 maintains a pressure of 6.5psig at point 1. There is a filter, a half-open disk valve, andtwo regular screwed elbows. There are 80 ft of 4-in diametercommercial steel pipe. (a) If the flow rate is 0.4 ft3/s,what is the loss coefficient of the filter? (b) If the disk valveis wide open and Kfilter = 7, what is the resulting flow rate?
A Francis radial-flow hydroturbine has the following dimensions, where location 2 is the inlet and location 1 is the outlet: r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m. The runner blade angles are ?2 = 71.4° and ?1 = 15.3° at the turbine inlet and outlet, respectively. The runner rotates at n. = 160 rpm. The volume flow rate at design conditions is 80.0 m3/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle ?2 through which the wicket gates should turn the flow, where ?2 is measured from the radial direction at the runner inlet. Calculate the swirl angle ?1, where ?1 is measured from the radial direction at the runner outlet. Does this turbine have forward or reverse swirl? Predict the power output (MW) and required net head (m).
In Fig. water exits from a nozzle into atmosphericpressure of 101 kPa. If the fl ow rate is 160 gal/min, what isthe average velocity at section 1?( a ) 2.6 m/s, ( b ) 0.81 m/s, ( c ) 93 m/s, ( d ) 23 m/s, ( e ) 1.62 m/s
Acentrifugal pump has di = 24 cm, dz = 36 cm, b1 = 12 cm, bz =7.5 cm, B1 = 22°, and B2 = 38° and rotates at 1170 r/min. If the fluid is gasoline at 20°C and the flow enters the blades radially, estimate the theoretical (a) flow rate (b) horsepower, and (c) head. For gasoline, take p=680 kg/m3.