A Francis turbine of an over all efficiency of 75% is required to produce 148.25 kW. It is working under a head of 7.62 m. The peripheral velocity coefficient is 0.26 while radial velocity of flow coefficient is 0.96. the wheel runs at 150 rpm. The hydraulic losses in the turbine are 22% of the available energy. Assuming radial discharge : • 1- guide blade angle • 2- wheel vane angle 3- wheel diameter at inlet and

A Francis turbine of an over all efficiency of 75% is required to produce 148.25 kW. It is working under a head of 7.62 m. The peripheral velocity coefficient is 0.26 while radial velocity of flow coefficient is 0.96. the wheel runs at 150 rpm. The hydraulic losses in the turbine are 22% of the available energy. Assuming radial discharge : • 1- guide blade angle • 2- wheel vane angle 3- wheel diameter at inlet and

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

Related questions

Q: A Pelton wheel working under a head of 500m produces 13MW at a speed of 430rpm. If the velocity of…

Q: A hydroelectric plant has a dam with a gross height of 381 m with respect to the collectors and a…

Q: 7. Water from the reservoir is pumped over hill through a 90 cm diameter pipe, and the pressure of…

A: Solution: Given Data: *The diameter of the pipe is, D=90 cm *The pressure at the summit is, P=200…

Q: A Pelton wheel works under a net head of 300 m and the total discharge available through the jets is…

A: To Find: (i) Diameter of each jet, d (ii) Power developed by turbine, P Given: Total discharge, Q1=5…

Q: Determine optimum velocity ?

A: Given: Rotor diameter,d=9 mSpeed,N=2700 rpmNozzle angle,α=300Optimum velocity: It is defined as…

Q: Q1) It is desirable to use the 32-in pump of Figure below at 1170 r/min to pump water at 60°F from…

A: Given data: The friction factor is f=0.00725 The ID of pipe is d=16 in

Q: Q1/ An inward flow turbine with radial discharge has an overall efficiency of 80% and develops 150…

A: E = 80%P = 150 kW H = 8mN = 150 rpm

Q: Kaplan turbine working under a head of 43 m deve- lops 15,400 B.H.P. The dia of the boss is 0"3…

A: Solution is attached below

Q: and runner tip diameter is 5 m. The overall efficiency is 87%.Determine the blade angles at the hub…

A: Output power = 40 MW Head = 35 mm Speed = 167 rpm Hub Diameter = 2.5 mm Runner tip Diameter = 3.75…

Q: A Pelton turbine having 1.6 m bucket diameter develops a power of 3600 kW at 400 rpm under a net…

Q: the blades due to friction. Taking the blade angles at the inlet and outlet to be equal, find the…

Q: d is 10 m/s, the water jet velocity is 25 m/s and volumetric flow rate of the jet is 0.1 m³/s. If th

A: GIVEN:pheriferical speed U=10m/sjet speed V=25m/sQ=0.1m3/sϕ=180-120=600

Q: What power can be delivered by the turbine if its efficiency is 100%? The water flow rate is 0.01…

Q: Albert bought a portable device to pump his truck tyres. On the manual, he found out that the device…

Q: A Pelton wheel works under a net head of 600 m and it runs at a speed of 720 rpm. The mean pitch…

A: Given that, H=600 m, N=720 rpm,D=1.2 m, Q=0.2 m3/s,Cv=0.98, ϕ=20°K=Vr2Vr1=0.9

Q: A Kaplan turbine working under a head of 81 5 m is dis- charging 295 m%/sec. of water at 75 R.P.M.…

Q: A Francis turbine with diameter of the runner and width are 2.4m and 0.3m, operates at 428rpm and…

A: Given data: Diameter of runner, D = 2.4 mWidth of runner, b = 0.3 mSpeed of runner, N = 428 rpm =…

Q: A simple linkage consisting of two equal mass-less bars and a slider B is subjected to a set of two…

Q: Francis turbine is used to produce power (Figure below), which has 300 m long penstock pipe of 1.0 m…

A: Given: Length of pen stock pipe L1=300 m Diameter of pen stock pipe d1=1m water level difference…

Q: Q1/ An inward flow turbine with radial discharge has an overall efficiency of 80% and develops 150…

A: AS THIS QUESTION HAS MANY PARTS SO I WILL SOLVE FIRST THREE FOR YOU IF ANY SPECIFIC SOLUTION IS…

Q: A trial run on a steam turbine power plant gave the following results Entrance to boiler Exit of…

A: Given DataVi=5m/sHin=850kJ/kgZi=4.3mVo=25m/sHo=2625kJ/kgZo=0m˙=3600kg/hr=1kg/sQ˙=2100kJ/sec

Q: Pelton wheel is to be designed for a head of 400 m when running at 500 rpm. The Pelton wheel…

A: Given Data Head of Pelton wheel is : H=400 m Speed is : N=500 rpm Shaft power is: Ps=10000 kW…

Q: Water is fed to an inward flow reaction turbine, running at 180 rpm with a velocity of flow of 3…

A: Given: Diameter and width of the inner wheel are d2=1m and t=135 mm=0.135 m , velocity of flow is…

Q: review the example. Thank you very much Question : Determine the power required (Watts) to drive…

A: Given:Speed of the pump, N=1 rpsDischarge of oil, ρ=850 kg/m3Flow rate, Q=375.3 gpmbore, d=250…

Q: In a 3.5 MW hydroelectric power plant, the elevation of the headwater is 2100 m and that of a…

Q: A centrifugal pump pumps water at a flow rate of 7 m³/s to a height of 10 m. If the pump works at…

A: Flow rate (Q) = 7 m³/s, Height (H) = 10 m, CQ=0.15 CH=6 CP=0.75.To find:Pump impeller diameter…

Q: Problem 2: A centrifugal pump with an overall efficiency of 0.56 rotates at 1650 rpm. The flow is…

A: (As per our company policy we are asked to solve 3 sub parts only) GIVEN :- Flow rate:Q=72 L/sinlet…

Q: For an inward flow reaction turbine has an external diameter as 1.5 m and width of 13.5 cm. The…

Q: Albert bought a portable device to pump his truck tyres. On the manual, he found out that the device…

A: Pressure, P1=30bar P2=87 KPa Temperature, T=20+273=293 k D = 1 m, L = 1.3 m To find, stroke…

Q: An inward flow turbine is supplied with 245L of water per second and works under a total head of…

A: Given: Head=30m Q= 245 L /sec Outlet Diameter = 28 cm

Q: A frain start from rest at Stadion A & accelerate C@ 0.75 m/s for 40s.Ater thet if freue ls, with…

Q: Problem 19.14 The diameters of an impeller of a centrifugal pump at inlet and outlet are 30 cm and…

A: A device which converts mechanical energy into pressure energy with the help of centrifugal force is…

Q: Kaplan turbine having following properties: D1=4.5m, D2=2m, Pout=28KW, N=140 r.p.m, Head=20m,…

A: Given values, : D1=4.5m, D2=2m, Pout=28KW, N=140 r.p.m, Head=20m, Hydraulic efficiency(ζh)=0.94,…

Q: 3.1 The Vertical-Shaft Francis Turbine has an overall efficiency of S90% and runs at 7.14 rev/sec…

Q: A propeller turbine has been designed to develop 22,000 kW under a head of 20 m whilst turning 150…

A: GivenP=22000kWH=20mN=150rpmηh=95%ηo=86%D=4.5md=2m

Concept explainers

Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

• A Francis turbine of an over all efficiency of 75% is required to produce 148.25 kW.
It is working under a head of 7.62 m. The peripheral velocity coefficient is 0.26
while radial velocity of flow coefficient is 0.96. the wheel runs at 150 rpm. The
hydraulic losses in the turbine are 22% of the available energy. Assuming radial
discharge :
1- guide blade angle
• 2- wheel vane angle
• 3- wheel diameter at inlet and
4- width of the wheel at inlet.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step by step

Solved in 7 steps with 12 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A rection turbine has guide vane angle 30° the runner blades make an angle of 80° relative to the tanget at inlet .the blades width at inlet is 1/4 of the outer diameter .the water does not have any tanget velocity at outlet.the head is 25 m and the rotational speed of the runner is 16.67 rotation per second (rps) the turbine efficiency is 88% determine the runner diameter at the inlet and the power developed by this turbine
A Francis turbine is to be designed to produce 27 MW at a shaft speed of 90rev/minunder an effective head of 27.8 m. Assuming that the optimum hydraulic efficiency is 90percent and the runner tip speed to jet speed ratio is 0.75, determine:(1) the power specific speed;(2) the volume flow rate;(3) the impeller diameter and blade tip speed.
A pump is used to raise water from open tank to another one. If the pipe diameter is 300 mm, Length is 70 m, friction factor is 0.025 and total K is 2.5, the characteristic equation is Hp%3D22.9+10.7Q-111Q Find the flow rate and the head of the pump in the following cases: 1. AZ=15 m with single pump used 2. AZ=15 m with two pumps are connected in parallel 3. AZ=25 m with two pumps are connected in series
80. APelton wheel turbine operates under a head of 125 m at a speed of 2000 rpm. To operate very close to the maximum efficiency, the mean diameter of the Pelton wheel is nearly (a) 24 cm (b) 48 cm (c) 12.5 cm (d) 36 cm
Problem 2 A pump is needed in a water supply system. The water is being pumped out of a ground-level storage reservoir with water surface elevation of 149.27 ft and needs to pass over a hill 2 miles away, where the pipe centerline is at elevation 200.00 ft. The flowrate is 22 mgd, pipe diameter is 24 inches, Hazen-Williams friction factor is 110, and pressure at the crest of the hill must be at least 20 psi. (a) What head must the pump provide? (b) How much power will be added to the water? (c) What size motor should be purchased if the pump/motor combination has an efficiency of 80 percent?
An impulse turbine operating at a net head of 2000 ft uses a Pelton wheel of diameter 12 ft and a jet flow area of 5 in. Using Bernoulli equation, find the turbine power corresponding to the best efficiency. Use velocity coefficient of 0.94 and a bucket angle of 165 degrees.
A flow rate of 3 m'/s of water is available at a height of I 10 m at a project site. Due to losses in the sup- ply line, the head available at the inlet to powerhouse is estimated to be only 101 m of water. The leakage losses in the powerhouse are negligible. Mechanical losses account for 150 kW. Frictional losses in the rotor blades may be taken as 250 kW. The exit velocity of water from the turbines is 4.5 m/s. Calculate the hydraulic, mechanical, and overall efficiencies of the plant. The specific weight of water may be taken as 9810 N/m.
ENPY = (+ 3.2 cm. Centrifugal pump rotates at 1500 rpm. Water enters the wings normally and exits by 38 degrees from the radial direction. The volumetric flow rate is given as 0.25 m^3/s. By accepting the yield as 100%; A centrifugal pump impeller has an inlet radius of 15 cm and a blade width of 6.3 cm. Its radius at the exit is 35 cm and its wingspan is (a2 = 38°) (Psu = 998 kg/m³) P1 + as 29 pg P2 + d2 29 pg L V² hg sûrekli= f-52g + zz + hpompa.f + hearbing + hg,toplam Re = p.V. D + z2 1.11 = -1.8 log Re 6.9 ɛ / D hkyerel = KK 29 Wmil = 3.7 hg,toplam= hx,sarekli + hx.yerel Протра H = pg z/1ẠM Nsp = (gH)³/4 ротра giris Wmil,B WmilA WR %3D PR (we PA b) Find the required shaft power for the centrifugal a) Find the manometric head provided by the centrifugal pump. pump. 28092 W 17,05 m O 42087 W 21,28 m O 38085 W 13,67 m O 45765 W 12,23 m O 35063 W 15,56 m
A turbine of the Francis type operates with a head of 200 m and flow rate of 3 m3/s.The peak efficiency occurs at a head coefficient CH of 9, a flow coefficient CQ of 0.3, and apower coefficient CP of 2.5 (as defined in Section 12.7). Estimate the size of the machine,the maximum power produced, and the speed.
1. As a junior city engineer of a municipality, you are tasked to design the specifications of the pump with 3650 cu.m/day. The water source in the municipality is from an open reservoir and will supply to a pressure tank that will distribute to the municipality. open 4l Pressure reservoir Tank 70 m 15 m Pump Determine the following specifications of the pump and piping system (assume fluid stagnation at the pump). Velocity head at pt.1 to 2 if the diameter of the pipe is a.) 200 mm b.) Suction pressure of the pump in kPa (Pressure at pt. 2). c.) Velocíty head at pt.3 to 4 if the diameter of the pipe is 150 mm d.) Discharge pressure of the pump in kPa (Pressure at pt. 4). Assume atmospheric pressure at the pump. If an air vent is installed at the pipe just right before the pressure tank with diameter of 20 mm, what is the velocity of discharge in m/s? The height of the pressure tank is 12 m, what is the flowrate in cu.m/hr at pt.5 if the diameter of the pipe is 150 mm? e.) f.)
IM 2m A turbomachine has inner impeller diameter of 1000 g and outer diameter 2000 mm, with a uniform width of flow cross-section being 120 mm. Water enters radially at the inner impeller and exit at the outer impeller which has a blade angle of 62°. The flow rate through the machine is 4 m³/s while the rotation speed is 350 rpm. Take water density as 1000 kg/m³ and assume ideal flow conditions with no losses, and the absolute velocity of the inlet water is directed radially! (a) (b) (c) (d) (e) (f) Draw the velocity diagrammes at the inlet and outlet of an impeller, labelling the velocity components. What is the blade speed at the inlet? What is the absolute speed of the water at the inlet? What is the blade angle at the inlet? Find the absolute velocity of water at the outlet. Justify whether the machine is a pump or turbine by calculating the torques, acting on the blade.
Problem1 A two stage centrifugal pump is designed to discharge water at a total head of 70 m with an overall efficiency of 0.76. The pump runs at 2331.6 rpm. The actual head developed (per stage) is 65% of the theoretical head. The flow at the inlet is pure radial. The impeller at the exit has a diameter of D2 = 0.219 m and a width of b, = 0.0216 m. The outlet blade angle is ß2 = 28°. Determine: 1. The flow rate of the pump. 2. The output power of the two stage centrifugal pump. p = 1000kg/m³ g = 9.81 m²/s Take