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

3d sketch , I am a chemical engineering foundation year. I need your help ...

I am a chemical engineering foundation year. I need your help with my homework, its 3D sketch by using Google sketchup program?? I have not use it before. Or any other 3D sketch p

Signal processing, why shift variant system causes artifacts

why shift variant system causes artifacts

Architecture.., draw folded plate roof structure on multi purpose hall?

draw folded plate roof structure on multi purpose hall?

Mobile Communication, A car, moving in the south-east direction at a veloci...

A car, moving in the south-east direction at a velocity of 5 m/s, receives a ray of power of -120 dBm each from the north, east and west. The carrier frequency is 300 MHz. (i) Sket

Design project, im on my final year, My final project is to design a 2 stor...

im on my final year, My final project is to design a 2 story office building, i was wondering if i can get any help from this website

Local attraction, how can we find local attraction correction?

how can we find local attraction correction?

HOmework, Assume that a movie is two hours long, that the frame rate is 30 ...

Assume that a movie is two hours long, that the frame rate is 30 frames per second, and that the resolution per frame is 1080i (1920×1080 pixels per frame), and that each pixel is

Ts diagram, how to find points on Ts diagram?

how to find points on Ts diagram?

Interest rate calculations, Interest Rate Calculations In considering ...

Interest Rate Calculations In considering the time value of money, it is convenient to represent mathematically the relationship between the current or present value of a sing

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