The first stage of a turbine is a two-row velocity compounded wheel. Steam at 40 barand 400 C is expanded in the nozzles to 15 bar, and has a velocity at discharge of700 m/s. The inlet velocity to the stage is negligible. The relevant exit angles are: nozzle18°; first row blades 21°; fixed blades 26.5"; second row blades 35°. Take the bladevelocity coefficient for all blades as 0.9. The mean diameter of the blading is 750 mmand the turbine shaft speed is 3000 rev/min. Draw the velocity diagram for this wheland calculate:(i) the diagram efficiency;(ii) the stage efficiency.(70.8%; 67.4%)

INTRODUCTION : Turbines are the prime movers in which the heat energy of the steam is converted…

The first stage of a turbi and 400 "C is expanded 700 m/s. The inlet velocit 18°; first row blades 21 velocity coefficient for al and the turbine shaft spe and calculate: (i) the diagram efficience (ii) the stage efficiency.

The first stage of a turbi and 400 "C is expanded 700 m/s. The inlet velocit 18°; first row blades 21 velocity coefficient for al and the turbine shaft spe and calculate: (i) the diagram efficience (ii) the stage efficiency.

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: H.w : nitrogen gas flows into a convergent nozzle at 200 kpa 400 K and very low velocity it flows…

Q: A 50% axial flow turbine is being considered as a standby for an oil-fired power plant. The…

A: Given: inlet temperature to the turbine→T1=800°C=1073.15 K nozzle angle at the inlet→α=65° axial…

Q: Please read the problem and solve what is asked. Thanks! A two-stage compressor with an ideal…

A: Givenhellium gasv1=0.5m3/sP1=150kPaT1=300KP2=7500kPa

Q: What is the over all efficiency of the turbine if the power developed is 12 MW at the head of 150 m…

Q: Compute the power in KW generated by Agusan Hydro Blectric power plant with water flOw rate of 1,552…

A: Given: Water flow rate of the power plant→Q=1552 liters/sec…

Q: Steam flow meters on an industriai process line recorded maximum flow rates of 57,900 lb per hr for…

A: from steam table Specific Volume at 40 psig=7.82 cuft/lb

Q: The following particulars refer to a row velacity-Compounded impulse wheel which foams of a the…

A: Thermodynamics : It is a branch of science which deals with work, heat, energy. Also, it studies…

Q: PE h 03A: A Kaplan turbine has runner width (4.5) and (2.0m) outer and Inner diameters respectively.…

Q: 80 of that of the choke. calcui

Q: a twin cylinder, double acting compressor with a clearance of 6% 25 m/min of air from 120 kpa, 40c…

Q: 1150 A Parson's reaction turbine has the following data for a particular stage; turbine speed is…

A: Solution:

Q: • . isentoopie efficiency of the turbine = 861. isentropic"," of pump = 91% • If Dolynesi traction…

A: To findDetermine the thermal efficiency of the plant.GivenIsentropic efficiency of the turbine =…

Q: Thermo-Fluid I

A: Stagnation PointA stagnation point, in fluid dynamics, is a point in the flow field where the local…

Q: Kubuta geothermal power plank has 83.7 % efficiency, What is its actual pOMer capacity if the…

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: he date for a certain installation are as follows Net Head = 454 m, BP = 57,200 bkw, n = 750 rpm,…

A: Given:H=454 mP=57200 KWN=750 rpm

Q: ck work ratio, Thermal Efficiency (% No Description Pressure ratio=B Ratio…

A: Given, T1 = 27oC = 273 + 27 = 300 K P1 = 100 kPa Compressor Ratio1 = 7 Compressor Ratio2 = 12 From…

Q: Assuming the abslute velocit air entering and leaving the Com nne som A0 M O

A: Solution as follows.

Q: A fous stage centrifugal pump has four ideutical empelles, keyed to the same shaft. The shaf in…

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

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: 4) A gos turbre oporos in on ided Boyton Cye d hich Argon i uond Horking cbalance Duning the alod df…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: For R-22 Find the capacity of the compressor if the suction line mentioned , p=1.2 bar ,Mass flow…

A: Refrigerant=R22Suction line pressure, Pe=1.2 barMass flow rate of refrigerant, m˙ref=0.3…

Q: (114m²/sec, 84.8%, 59.87°, 14.18°) The following particulars are available about a propeller…

Q: A process in a plant is to he revised such that the airflow rate through Si system will increase…

Q: E 14.5. A Pelton turbine delivers 14.25 MW when running at 600 rpm under a head of 900 m. Assum- ing…

Q: Parallel-connected double centrifugal pumps each have a specific speed of 28 and operate at 1350 rpm…

A: Velocity diagram at the inlet and outlet of a centrifugal pump,

Q: Ube following particulars refer ta n twor row velactly- compaunded impulse wheel which fomms of a…

A: "Since you have posted a question with multiple sub parts we will solve first three subpart for you…

Q: Given :take P1 = 10 KPa Turbine entry conditions = 16 MPa and 600 oC(Degrees Celsius) Turbine…

A: Data given- P1 = 10 KPa Turbine entry conditions = 16 MPa and 600°CTurbine output=5 MPaPhase state…

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: The following particulars refer to a tuo- Tow velocity-Compounded impulse wheel which foame of a Q.…

A: When one row of nozzle is followed by another row of blades, it is known as a stage of turbine. In…

Q: An experimental wind terbine, designed for optimum e fficiency operation, has blades 37.5m in…

Q: Q. The following pasticulars refer to a twat Tow velacity-Compounded impulse wheel which fome of a…

A: "Since you have posted a question with multiple sub parts we will solve first three subpart for you…

Q: Gas is compressed in a reciprocating compressor from 33 kPa to 89 kPa. The FAD is 14 dm3/s. The…

Q: Forty percent of the electrical input to a motor driven pump is converted into a hydraulic jet 0.013…

Q: 14) Calculate the actual pump and turbine work 525 °C Boiler 20 MPa Wturb.ou Turbine urdund Pump…

A: Answer: (a) The actual turbine work is 1177.6654 kJ/kg. (b) The actual pump work is 22.4709 kJ/kg.

Q: Given . ● 86 and 91% isentoopie efficiency of the turbine = 86%. isentrople", Pump = 91% • If…

A: From given schematic diagram, it is clear that reheating is applied to the working fluid. Draw T-s…

Q: A single cylinder petrol engine works on the Otto cycle and draws in air at 1.01 bar and 22°C. The…

Q: with the axial A Kaplan turbine operates at (45 rpm) with a blade peripheral velocity of (14 m/s).…

A: Given: The speed of the Kaplan turbine→N=45 rpm Blade peripheral velocity→u=14m/s Inlet blade tip…

Q: Entrance cross-section 0.032 m2 flow fluid 134a, temperature 50 ° C, It enters at 1200 kPa pressure…

A: A nozzle is a device that is used to increase the velocity of the fluid at the expense of pressure…

Q: veločily öl air Of vhen the nozzle tip is providled.

Question

The first stage of a turbine is a two-row velocity compounded wheel. Steam at 40 bar
and 400 C is expanded in the nozzles to 15 bar, and has a velocity at discharge of
700 m/s. The inlet velocity to the stage is negligible. The relevant exit angles are: nozzle
18°; first row blades 21°; fixed blades 26.5"; second row blades 35°. Take the blade
velocity coefficient for all blades as 0.9. The mean diameter of the blading is 750 mm
and the turbine shaft speed is 3000 rev/min. Draw the velocity diagram for this whel
and calculate:
(i) the diagram efficiency;
(ii) the stage efficiency.
(70.8%; 67.4%)

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 by step

Solved in 4 steps with 1 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

outlet and the flow Velocity to be constent. Find B. An inward flow reaction turbine Ŝ supplying weter at a rete G00 litre/seconde with a relocity of flow 6m/s.The relocity lf mls restecfilely. Assuming the discharge to the Fedi radiat at l MIN LTE 1/1 at the Periphery and the wheel Welocity at intet are 24mls cand 4:20 AM O 17% C Ine loane engple at inlet. he head of water over the Lekeed.
Q8: In Kaplan reaction turbine produces (70kW) at (370 r.p.m). The hub and tip diameter are (0.4m and 0.8m) respectively. The flow velocity is (2.8 m/s), find peripheral velocity and discharge.
An axial turbine with axial leaving velocity has stage loading coefficient of 1.6, flow coefficient of 0.6. Draw the velocity diagrams and find the degree of reaction.
5. A single row impulse turbine receives 3 kg / sec steam with a friction etc amount to 15 KW, determine the blading efficiency and the blade velocity coefficient. The nozzle angle is 16° and the blade exist angle is 17°
Q8: In Kaplan reaction turbine produces (70kW) at (370 r.p.m). The hub and tip diameter are (0.4m and 0.8m) respectively. The flow velocity is (2.8 m/s), find peripheral velocity and discharge.
Problem-5: In a CD nozzle with a throat area of 0.75 m² of a rocket engine, gas at 7.5 MPa and temperature of 3200 K is in combustion chamber, is expanded fully to (nozzle exit pressure) 10.5 kPa for producing thrust. Assuming flow to be frozen and isentropic, Also, Assume, gamma, y 1.2 and molecular weight, MW = 24 kg/kmol, Assume, universal gas = constant = 8314 J/Kg K mol Determine: (1) the exit Mach number, (2) the maximum exit mass flow rate passing through this nozzle, and (3) the exit area (4) If ambient pressure, i.e. pressure outside nozzle = 10.5 kPa, What is the thrust developed? Fuel Oxidant Combustion zone Mixture of Hot gas at high pressure and Temprature Expansion Through Nozzle High velocity exhaust Liquid Propellant Rocket
Suppose that the pump of Fig. is run at 1100 r/minagainst a pressure rise of 210 bar. (a) Using the measureddisplacement, estimate the theoretical delivery in gal/min.From the chart, estimate (b) the actual delivery and (c) theoverall efficiency.
A pcton-turbine develops 5MW power at a specific spced of 15. Thc water is supplied through a pipeline from a reservoir the level of which is 300m above the nozzles. Assuming for a friction loss in the pensto ck pip eline to be 5% of the gross head. The turbine speed is rpm
Initial condition: P = 2 MPasaturatedProcess: AdiabaticFinal condition: P = 0.1 MPasaturatedRequired: Turbine isentropic efficiency
Please show complete solution. Thank you!
I need the answer as soon as possible
i need the answer quickly