5- Steam at an absolute velocity of 750 m/s is directed on blades of an impulse turbine at an angle of 22° to their motion. The blades speed is 225 m/s, exit angle of the blade is 31° and the friction between the steam and blade surface reduces the relative velocity of the steam by 15% if the steam flow rate is 3.72 T/hr, Calculate: i. The Stage power and efficiency. ii. The inlet angle of the balding. iii. The magnitude and direction of the absolute velocity of the steam at exit from the blades

5- Steam at an absolute velocity of 750 m/s is directed on blades of an impulse turbine at an angle of 22° to their motion. The blades speed is 225 m/s, exit angle of the blade is 31° and the friction between the steam and blade surface reduces the relative velocity of the steam by 15% if the steam flow rate is 3.72 T/hr, Calculate: i. The Stage power and efficiency. ii. The inlet angle of the balding. iii. The magnitude and direction of the absolute velocity of the steam at exit from the blades

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: om the dala given beIOw, calculate the power requin an axial flow compressor. Lo arive the…

A: Handwritten.jpg

Q: Explain, with the aid of diagrams, the principles of operation of steam turbine plants.

A: Step 1:Step 2: Step 3: Step 4:

Q: Q2. A four-stroke cycle SI engine with 8 cylinder has 6.2-liters. It designed to have a maximum mass…

Q: The peripheral speed of the rotor of impulse turbine is (300m/S) and the absolute velocity of air at…

A: For solution refer below images.

Q: Differentiate between Impulse and reaction

A: The basic difference between impulse and reaction turbine is that in impulse turbine steam flows…

Q: A pure jet engine propels an aircraft at 520 mph at an altitude where the are 3.5 psia and -46 °F,…

Q: For a single stage impulse turbine : Rotor diameter3 6 m Speed%3 2700 rpm Nozzle angle= 20°…

Q: 2. A civil transport aircraft powered by a four turbojet engines is flying at Mach number of 0.8 and…

Q: In the first stage of the impulse turbine, the adiabatic heat drop in the nozzle is 350 (kJ/kg), the…

Q: ..Equation for Law of conservation of mass and energy for a nozzle

A: Law of conservation of mass (For nozzle) The mass is conserved during the process, the mass of fluid…

Q: 2. A gas turbine generates 300 MW of power with inlet conditions of 1600 K and 1600 kPa and exit…

A: Input of the turbine is 1600 K. The input pressure of the turbine is 1600 kPa. We can assume the…

Q: An adiabatic nozzle has Refrigerant-134a at a pressure of 102 psi and temperature of 248°F entering…

Q: Problem 5: Calculate the thrust of a gas turbine engine if the exhausting jet expands to ambie…

Q: In a Parson reaction turbine, the angles of receiving tips are 35º and of discharging tips 20º. The…

A: Blade speed , u = 125 m/s take a scale 5 cm = 125 m/s 1 cm = 25 m/s from the velocity triangle:…

Q: Ancis turbine operates under a head of (24.5m) and consumes (10.5m/) of water gat (225 r.p.m). The…

A: To calculate the diameter of the runner at the entry and the specific speed of the turbine runner,…

Q: 6. Steam enters a pressure reducing valve at a pressure of 2000 kPa, dry saturated. It is throttled…

Q: a) Total expansion work (kJ/kg) b) Intermediate heating amount (kJ/kg) c) Calculate the rate of…

A: For solution refer below images.

Q: maximum blade efficiency (in percent) is

A: Given, Velocity of steam,V=10 m/sBlade angle,θ=300Enthalpy drop in the stage= 100 kJNozzle…

Q: In a refrigeration plant ammonia enters the expansion valve as a liquid at 32°C and leaves the…

Q: A Peloton turbine is driven by two jets generating 4.0MW at 375 rpm. The head at the nozzles is 200…

Q: Pls. Answer thank you! A turbo-charged, 16 cylinder, Vee-type diesel engine has an air consumption…

Q: 07. An inward flow radial turbine involves a nozzle angle, a, of 60° and an inlet rotor tip speed,…

Q: Discuss, with the aid of diagrams, the principles of operation of gas turbine plants.

A: Slide 1Gas Turbine Power Plants Speaker NotesIn this presentation, we'll delve into the principles…

Q: A single reciprocation compressor takes 1m³ of air per minute and 1.013 bar and 15 degree Celsius…

Q: (2) a fou-cylinder, 2.4 liter engine operates on a four-stroke cycle at 3200 r.p.m. the compression…

Q: 5. The velocity of steam at section in a scaling nozzle can reach to the critical point. 6. The…

A: Solution: Given Data: To Find: Fill in the blanks.

Q: A turbine passes 67.5 kg/h of steam at 200 km/h at 8 MPa and leaves at 0.5 MPa as wet steam with a…

Q: b) A single-acting, two-stage reciprocating air compressor runs at a speed of 500 rev/min with…

Q: For a centrifugal compressor rotating at 2500 rpm, find the compression ratio for the following…

A: Given that, Ta0=300 K,N=2500 rpm,ηst=0.85rb=0.55,ra=0.015,Q=1.25 m3/sec,βb=60°t=0.15 m, Determine…

Q: Explain two types of turbine which depend on the action of water on the moving blades

Q: 3. Describe the different parts of radial flow reaction turbine.

A: Describe different parts of reaction turbine

Q: A single-stage, single-acting air compressor with runs at speed 600 rpm. It has a polytropic index…

A: The same has been solved in next step.

Q: 7. A single stage air compressor handles 0.5 cubic meter per sec of atmospheric air at 27 O C and…

A: Given,Initial pressure = P1 = Atmoshpheric pressure = 101.325 kPaTemperature,T1=270CFinal pressure =…

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

5- Steam at an absolute velocity of 750 m/s is directed on blades of an impulse
turbine at an angle of 22° to their motion. The blades speed is 225 m/s, exit
angle of the blade is 31° and the friction between the steam and blade surface
reduces the relative velocity of the steam by 15% if the steam flow rate is
3.72 T/hr, Calculate:
i. The Stage power and efficiency.
ii. The inlet angle of the balding.
iii. The magnitude and direction of the absolute velocity of the steam at
exit from the blades

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 10 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

4. For Francis turbine with the following specifications: Paev= 225 MW, H=250 m, nov= 90 % , If the velocity of water at spiral case entering =24 m/s, and the volumetric efficiency is 0.98, thus the diameter of the spiral case entering is: a. 2.3 m. b. 2.8 m. c. 3.1 m. d. 3.6 m. e. None of them.
2. A compression ignition engine draws in air at a pressure of 1.75 bar (abs) and compresses it adiabatically into the clearance volume before the fuel is injected. The stroke volume is 4.04 m³ and the clearance volume is 2.004 m³. Calculate: a. The pressure at the end of compression b. the final temperature, given an initial temperature of 30°C c. the compression ratio of the engine. Bonus: Based on the numbers given above is this a logical problem in an automobiles engine or is this a purely hypothetical question?
1. Gas is compressed in a reciprocating compressor from 33 kPa to 89 kPa. The FAD is 14 dm3/s. The clearance ratio is 0.09. The expansion part of the cycle follows the law pV 1.2 = C. Calculate the swept volume and the volumetric efficiency.
In a trial run, the De Laval steam turbine at Oman Power Plant rotates at 3000 rpm. The steam is issued from the nozzle at 400 m/s and the nozzle angle is 20o. The blade speed ratio is 0.41and the friction loss in the blade channel is 15%of the kinetic energy corresponding to the relative velocity at the inlet to the blades. As a turbine engineer at that station, how do you determine the (i) power developed by the turbine for a flow rate of 10 kg/s and (ii) suitable inlet and outlet angles for the blades when axial thrust is zero. Also, how would you determine the size of the turbine wheel required? Draw a suitable velocity diagram.
4. For Francis turbine with the following specifications: Pdev= 225 MW, H=250 m , nov= 90 % , If the velocity of water at spiral case entering =24 m/s, and the volumetric efficiency is 0.98, thus the diameter of the spiral case entering is: а. 2.3 m. b. 2.8 m. с. 3.1 m. d. 3.6 m. e. None of them.
5.16. For a centrifugal compressor rotating at 2500 rpm, find the compression ratio for the following specifications. T = 300 K; 79 (volumetric flow rate)=1.25 m³/s and t (the thickness of the flow section at the exit) = 0.15 m. = 0.85; r, = 0.55; ra = 0.015; B, 60°,
1) A singe acting, twin cylinder, ammonia compressor with bore equal to stroke is driven by an engine at 250 rpm. The machine is installed in a chilling plant to generate 700 kW of refrigeration at -18C evaporating temperature. At this temperature, the cooling effect per kg mass is 1160 kJ. The sp volume of vapor entering the compressor is 0.592 m³/kg. Assume 85% volumetric efficiency. Calculate the bore in mm.
In a Francis turbine, when 6N force is applied to the disc with a radius of 0.08m, the revolution rate is 2500 rpm, the water flow rate is 8 m3 / h, the inlet pressure is 12 mSS and the outlet pressure is 0 mSS. In this case, calculate. Francis turbine efficiency
Q - The rotor of an impulse turbine is 60 cm diameter and runs at 9,600 r.p.m. The nozzles are at 20° to the plane of the wheel, and the steam leaves them at 600 m/sec. The blades outlet angle are 30° and the friction factor is 0.8. Calculate the power developed per kg of steam per second and the diagram efficiency.
A steam line carries 200t/h of steam at 40bar connected to a control volume of a spray type desuperheater which is supplied with another line of water at 50 C. Calculate the amount of water that must be sprayed per second to maintain steam at 400 C (at outlet line) when the boiler load causes the first line of steam to leave at 450 C.
A single stage single acting reciprocating air compressor has 0.25 m x 1.75 m runs in 750 rpm is to deliver 0.20m³ free air per second from 101.3 kPa to 355 kPa. Calculate (a) the volume displacement (b) the volumetric efficiency (c) the isothermal work done, compression is at pV =c (d) the isothermal compressor efficiency if the the indicated power of compressor is 40kW
Superheated steam at 40 bar absolute and 500°C flows at a rate of 250 kg/min to an adiabaticturbine, where it expands to 5 bar. The turbine develops 1500 kW. From the turbine thesteam flows to a heater, where it is reheated isobarically to its initial temperature. Neglectkinetic energy changes.(a) Write an energy balance on the turbine and use it to determine the outlet streamtemperature.(b) Write an energy balance on the heater and use it to determine the required input (kW) tothe steam.(c) Verify that an overall energy balance on the two-unit process is satisfied.(d) Suppose the turbine inlet and outlet pipes both have diameters of 0.5 meter. Show that itis reasonable to neglect the change in kinetic energy for this unit.