Example 26.13 An axial-flow compressor draws air at 20°C and delivers it at 50°C. Assuming 50% reaction, calculate the velocity of flow, if blade velocity is 100 m/s, work factor is 0.85. Take C₂ = 1 kJ/kg K, Assume Cp 10°, and B = 40°. Find the number of stages. a =

Example 26.13 An axial-flow compressor draws air at 20°C and delivers it at 50°C. Assuming 50% reaction, calculate the velocity of flow, if blade velocity is 100 m/s, work factor is 0.85. Take C₂ = 1 kJ/kg K, Assume Cp 10°, and B = 40°. Find the number of stages. a =

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 cantilever beam, carries a uniformly distributed load W, determine the maximum deflection of beam.…

A: The maximum deflection occurs at point A: yA = (w•L4) / (8•E•I)

Q: 3.8 Attaching a hollow shaft to a solid shaft creates the steel shaft. Determine the maximum torque…

Q: m x₁ (1) k M x₂ (1) k 2m 26 www

Q: A refrigeration system has a COP of 4.The compressor power is 30 kw.Find the mass of ice produced by…

Q: The 2 kg collar is released from rest at A and slides down the inclined fixed rod in the vertical…

A: Given data Mass = 2kg Spring constant = 1.6 KN/m Coefficient of friction = 0.4 Compression of…

Q: 5. During the flight, the air speed of a turbojet engine is 250 m/s. The ambient air temperature is…

Q: A 60kg woman holds a 9kg package as she stands within an elevator that briefly accelerates upward at…

Q: Differentiate planned and unplnned maintenance ?

A: In planned maintenance, the task and work are defined as well as what and how work should be…

Q: Engine oil at 80°C flows over a flat surface at 40°C for cooling purpose, the flow velocity being 2…

A: Given Velocity, v = 2 m/s Distance, x = 0.4 m Properties at 80 + 40 /2 = 60oC Kinematic…

Q: A circular cylinder with inside diameter of 10 cm which carries a compressive force equivalent to…

A: As per our guidelines we are supposed to answer only one question in case of multiple questions…

Q: A cantilevered solid shaft with length of 400-mm and diameter of 150-mm is loaded at its free end as…

Q: why 12μ and 2/3 μmax?

Q: 4. For an element subjected to stresses of x= 70 ksi y=-15 ksi xy=30 ksi SAH: (a) Draw Mohr's…

Q: Determine whether or not it is stable for that position. R=0.75m h=1.50m

Q: ᴄᴏᴍᴘᴜᴛᴇ ᴛʜᴇ ɴᴏᴍɪɴᴀʟ ꜱʜᴇᴀʀ ꜱᴛʀᴇꜱꜱ ᴀᴛ ᴛʜᴇ ꜱᴜʀꜰᴀᴄᴇ, ɪɴ ᴍᴘᴀ, ꜰᴏʀ ᴀ 50 ᴍᴍ ᴅɪᴀᴍᴇᴛᴇʀ ꜱʜᴀꜰᴛ ᴛʜᴀᴛ ɪꜱ…

Q: 8. The force that keeps the body moving in circular motion is a) Centripetal force b) Centrifugal…

A: given data Q-8 what force keep the body in circular motion. Q-9 weight = 20 N mass = 2 kg radius =…

Q: Windmill Electric Power It is becoming increasingly common to use wind turbines to generate electric…

Q: A gas turbine power plant operates on a simple Brayton cycle with air as the working fluid. The air…

Q: Example 26.13 An axial-flow compressor draws air at 20°C and delivers it at 50°C. Assuming 50%…

Q: Complete the table of values below. Then, sketch the graph of r = 2-3 cos in polar coordinate system…

A: Given r=2-3cosθ To find Plot the value of r with angle

Q: A power plant station has a turbine output of 70,000 KW. A dry and superheated steam is supplied to…

A: Answer: The over-all Rankine cycle efficiency is 36.2 %.

Q: 04: For the beam shown in Fig. 4, determine the deflection at point D and indicate whether the…

Q: 2. A 200 lb block rests on a horizontal surface. The coefficient of static friction between the…

A: Given, Weight of the block = W = 200 lb Coefficient of friction = μ = 0.35 Part (a): When the…

Q: Q1 Figure Q1, A turbo-compressor supplies power to the air-condition unit (heat pump) with 798,22kw.…

A: given; power(P)=746wattpump input workdone(win)=798.22kw…

Q: 1. Which of these cannot be considered a non-compensatory attribute when buying a phone? A Cost B.…

A: 1. Non Compensatory Attribute : A Non Compensatory is a decision-making strategy to eliminates…

Q: A bicycle and rider is mass 125 kg are travelling at a speed of 10 km/hr. The rider applies a break…

A: Given data mass = 125 kg speed = 10 km/h diameter = 1 m pressure applied =120N coefficient of…

Q: A trapezoidal plate shown in the figure is submerged in water is 3.3 m below the surface. The bases…

A: Givenh=3.3mb1=3mb2=8md=10mγ=9.75 kN/m3

Q: A single cylinder engine is used to drive an irrigation pump. The set-up has the following data:…

A: The diameter of the pump pulley: 305.5556 mm

Q: The guide vanes angles of a Francis water turbine make 20 with the tangent at entry. The runner…

Q: at 5°C is being used to cool apples from an initial temperature of 25° to 10°C. The water flow over…

Q: How to make a good mesh for supersonic airplane simulation

A: For the convective components of the variables related with turbulence, the first-order Upwind…

Q: A pipe has an inside diameter of 8 in. and 16 in. at section 1 and 2 respectively. If water is…

Q: 5-4. Determine the load in member CH of the truss shown in Figure P5-4. 6 kips 15 kips CY BY D X 20'…

Q: An acme thread power screw that has a mean diameter of 25 mm and pitch of 5 mm is used to lift a…

Q: A twin-engine jet aircraft is climbing at a 10 degree angle, measured from the vertical, at 260…

Q: Oil (SG = 0.83) flows at a rate of 200 L/s through a 500m pipe with a diameter of 200mm. The…

A: Given data SG=0.83d=0.2 mL=500 mf=0.0225 Here, d is the diameter and L is the length of the pipe.…

Q: It causes resistance due to applied forces which is a result of restrain deformations Shear Force…

Q: instantaneous position of a four-bar linkage mechanism is shown in figure 1. The input AB, rotates…

Q: 2 kips B 2 kips E -4 panels at 10 ft = 40 ft span 2 kips G 8 kips H 10 ft

Q: Question: A particle moves in the x-y plane with an x-component of velocity in meter per second…

A: Given data Vx = 4√t ay= 4e^t When t = 4, y=10, x=4 and Vx = 10. Find the equation of path of the…

Q: ompute the heat conducted in KW through a sheet of plate glass, k = 0.025 Cal/s-cm-ºC, which is 3.5…

A: Given Thermal conductivity, k = 0.025 Cal/s-cm-ºC = 10.46…

Q: 13.8 (a) Describe briefly the various losses occurring in an inward- flow radial turbine stage. (b)…

A: The radial flow turbine is defined as the turbine in which flow enters radially. The main difference…

Q: Q2\ Determine the wall (shearing stress in a pipe of diameter 100 mm which carries water. The…

Q: An eye bolt carries a tensile load of 20 kN. Find the size of the bolt (in mm), if the tensile…

Q: Water is flowing in a conical tube. the inlet conditions are D=100mm, v=1m/s & density = 1000kg/m3.…

Q: - Which of the following statements regarding a

A: Given; Choose the following statements is correct, Where, Rankine cycle with reheating ,

Q: Question: A particle moves in the x-y plane with an x-component of velocity in meter per second…

A: Given data Vx= 4√t ay= 4e^t at t=4 y= 10 ,x= 4 and Vx= 10 a)find the equation of path of particle…

Q: The solar energy can generate 1.5 kW per one square meter of a solar collector with a total area of…

Q: The acceleration of a particle is defined by the a = -10v knowing that at tso the velocity is 30…

Q: In the feed drive of a point-to-point open loop CNC drive, a stepper motor rotating at 200 steps/rev…

A: GIVEN DATA- PITCH p=4mm GEAT RATIO=1/4 f=10000Hz WE HAVE TO FIND BLU

Question

Example 26.13 An axial-flow compressor draws air
at 20°C and delivers it at 50°C. Assuming 50% reaction,
calculate the velocity of flow, if blade velocity is 100 m/s,
work factor is 0.85. Take Cp = 1 kJ/kg K, Assume a =
10°, and B = 40°. Find the number of stages.

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 4 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

Q3// An axial flow compressor, with compression ratio as 5, draws air at 20°C delivers it at 50°C. Assuming 50% degree of reaction, find the velocity of flow if the blade velocity is 100 m/s. Also find the number of stages. Take work factor-0.85, the exit and inlet angles for both the moving and fixed blades are 10° and 40° respectively, c₁=1 kJ/kg.K.
Q2//The rotational-speed of an impulse turbine wheel is 3000 r.p.m. The nozzles are inclined at 20° and their efficiency is 0.89. The isentropic heat drop for the stage is 159 kJ/kg. If the blade speed ratio is 0.4, the blade speed coefficient is 0.82, and the blade efficiency is 0.76. Find for steam flow rate of 15 kg/s: 1. The mean blade ring diameter. 2. The power developed by the stage. B = 32.4°:Be : 38.5°). %3D %3D Answer (1.355m, 1613.2 kW,
6.9 One stage of an impulse turbine consists of a converging nozzle and one ring of moving blades. The nozzle angles are 22° and the blade angles are 35°. The velocity of steam at the exit from the nozzle is 650 m/s. If the relative velocity of steam to the blades is reduced by 14% in passing through the blade ring, find the diagram efficiency and the end thrust on the shaft when the blade ring develops 1650kW.
3.43 A boiler feed pump delivers 0.05 m³/s of water at 240°C, 20 MPa. What is the mass flowrate (kg/s)? What would be the percent error if the properties of saturated liq- uid at 240°C were used in the calculation? What if the properties of saturated liquid at 20 MPa were used?
6.8 Consider one stage of an impulse turbine consisting of a converging nozzle and one ring of moving blades. The nozzles are inclined at 20° to the blades, whose tip angles are both 33°. If the velocity of the steam at the exit from the nozzle is 650 m/s, find the blade speed so that steam passes through without shock and find the diagram efficiency, neglecting losses.
6.8 Consider one stage of an impulse turbine consisting of a converging nozzle and one ring of moving blades. The nozzles are inclined at 20° to the blades, whose tip angles are both 339. If the velocity of the steam at the exit from the nozzle is 650 m/s, find the blade speed so that steam passes through without shock and find the diagram efficiency, neglecting losses. (273 m/s, 88.2%)
Ans. 3908 m/min. 14.5 Find the cylinder dimensions of a single-cylinder, double-acting compressor handling 28.32 e/revolution of air from 99.975 kPaa to 723.954 kPaa. Compression and reexpansion are in accordance with PV135 = C. Use the conventional volumetric efficiency; c = 5% and L/D = 1. %3D %3D
A single acting two-stage air compressor deals with 4 m^3/min of air under atmospheric conditions of 1.013 bar and 15°C with aspced of 250r.p.m. The delivery pressure is 80 bar. Assuming complete inlercooling, find the minimum power required by the compressor and the bore and stroke of the compressor. Assume a pistonspeed of 3 m/s, mechanical efficiency of 75 percent, and volumetric efficiency of 80 percent per stage. Assumethe polytropic index of compression in both the stages to be it = 1.25 and neglect clearance.
Problem 5: Calculate the thrust of a gas turbine engine if the exhausting jet expands to ambient pressure, mass rate of flow m-47,65 kg/s, flight velocity co =239,6 m/s and jet exhaust velocity c9 = 1275,6 m/s.
5. a) Using the Euler whirl equation, find the power transfer between a throughput of 100kg/s of air and a rotor where impeller speed in constant at 300m/s and the change in whirl velocity of the air is 150m/s. b) If this impeller is a compressor, producing isentropic compression, find the exit pressure and temperature of air taken in at sea level standard conditions.
5.9 From the data given below, calculate the power required to drive the compressor and stage air angles for an axial flow compressor. Stagnation temperature at the inlet: Overall pressure ratio: Isentropic efficiency of the compressor: 0.88 Mean blade speed: Axial velocity: Degree of reaction: 288 K 4 170 m/s 120 m/s 0.5 (639.4 kW, B, = 77.8°, ß2 = – 72.69°)
2. An air compressor is to compress 510m²/hr from 100kpa to 10bar, for an ideal compression with n=1.3, what will be the percent saving in power due to two staging?