Changes in temperature and pressure-aircraft maintenance, Other Engineering

Assignment Help:

Changes in temperature and pressure:

The changes in temperature and pressure of the gases through a gas turbine engine are illustrated in Figure 1.5 The efficiency with which these changes are made will determine to what extent the desired relations between pressure, temperature and velocity are obtained.  The more efficient the compressor, the higher is the pressure generated for a given work input - i.e. for a given temperature rise of the gas.  Conversely, the more efficiently the turbine uses the expanding gas, the greater is the output of work for a given temperature drop in gas.

 

1494_changes in temprature and pressure.png

VELOCITY AND PRESSURE

During the passage of the air (gas) through the engine, aerodynamic and energy requirements demand changes in its velocity and pressure. For example, during compression a rise in the pressure of the air is required with no increase in its velocity. After the air has been heated and its internal energy increased by combustion, an increase in the velocity of the gases is necessary to cause the turbine to rotate. Also at the propelling nozzle, a high velocity is required, for it is the change in momentum of the air that provides the thrust on the aircraft. Local decelerations of gas flow are also required - for example, in the combustion chambers to provide a low velocity zone for the flame.


Related Discussions:- Changes in temperature and pressure-aircraft maintenance

Match plate patterns, Match plate patterns are used where a rapid producti...

Match plate patterns are used where a rapid production of small and accurate castings is desired on a large scale. These patterns find a great favour in machine moulding. Their co

Dischage rate, stuck on a project that requires 5 outputs with 6 inputs and...

stuck on a project that requires 5 outputs with 6 inputs and all formulas

Modulus of rupture, description about modulus of rupture machine & differen...

description about modulus of rupture machine & different parts of bending strength machine

Control engineering, what are the components, applications, benefits and dr...

what are the components, applications, benefits and drawbacks of control engineering?????

Fibre optics communications, explain the fibre optic communication system w...

explain the fibre optic communication system with block diagram

PLC, True or False, In a PLC system, there is a physical connection between...

True or False, In a PLC system, there is a physical connection between field input devices and output devices.

Matlab, program how to estimate the inner curve using spline interpolation

program how to estimate the inner curve using spline interpolation

Servo accelerometer, Servo accelerometer Electro-mechanical servo (forc...

Servo accelerometer Electro-mechanical servo (force balance) accelerometer uses an electromagnet to provide restoring force. The position of the seismic mass is measured by a p

DPC IN CIVIL ENGINEERING, I WANT TO KNOW WHAT IS DPC TERM MEANING IN CIVIL...

I WANT TO KNOW WHAT IS DPC TERM MEANING IN CIVIL ENGINEERING

Refractory and their classification, Q. What are refractory's? How are they...

Q. What are refractory's? How are they classified? Give the essential requirements of good refractories.                                                    OR Discuss cla

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd