In a modern jet engine, air passes through the following states from the inlet to the outlet, as shown in Figure 1: (a) Pressure (kPa) Temperature (K) (b) (c) State State 1 80 State 2 State 3 State 4 State 5 80 3300 3200 400 For this problem, you may neglect any heat transfer, as well as neglect kinetic energy except at the outlet (state 5). Use the tables for obtaining properties (do not assume constant specific heat). Assume air is an ideal gas with ideal gas constant of R = 0.287 kJ/kg-K. 260 780 1500 900 640 Use the appropriate conservation equations and make approximations (and justify them) to find the compressor specific work. In a similar manner, find the turbine specific work. And finally, using similar arguments, find the nozzle exit velocity.

In a modern jet engine, air passes through the following states from the inlet to the outlet, as shown in Figure 1: (a) Pressure (kPa) Temperature (K) (b) (c) State State 1 80 State 2 State 3 State 4 State 5 80 3300 3200 400 For this problem, you may neglect any heat transfer, as well as neglect kinetic energy except at the outlet (state 5). Use the tables for obtaining properties (do not assume constant specific heat). Assume air is an ideal gas with ideal gas constant of R = 0.287 kJ/kg-K. 260 780 1500 900 640 Use the appropriate conservation equations and make approximations (and justify them) to find the compressor specific work. In a similar manner, find the turbine specific work. And finally, using similar arguments, find the nozzle exit velocity.

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

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Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

a
(a)
Air
in
(b)
(c)
Diffuser
Compressor
Combustors
2
State
State 1 80
State 2
3300
State 3 3200
State 4
400
State 5
80
wwww
Pressure (kPa)
3
Turbine
4
Figure 1: Figure for Problem 2.
In a modern jet engine, air passes through the following states from the inlet to the outlet,
as shown in Figure 1:
Product
gases out
260
780
1500
900
640
K
5
>
Nozzle
justify them) to find the compressor specific work.
Temperature (K)
For this problem, you may neglect any heat transfer, as well as neglect kinetic energy except
at the outlet (state 5). Use the tables for obtaining properties (do not assume constant
specific heat). Assume air is an ideal gas with ideal gas constant of R = 0.287 kJ/kg-K.
Use the appropriate conservation equations and make approximations (and
In a similar manner, find the turbine specific work.
And finally, using similar arguments, find the nozzle exit velocity.

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