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

Carrer, i want to do aeronautics engg. but my height is only five feet . so...

i want to do aeronautics engg. but my height is only five feet . so can i go in aeronautics

Common faults - fire safety management, Common faults - Fire safety managem...

Common faults - Fire safety management: Common faults found are: Combustible items left in protected routes Locked exits Fire doors wedged open Exits obstru

Aaa, Let C(K) denote a European vanilla Call option with strike price K. As...

Let C(K) denote a European vanilla Call option with strike price K. Assume that all options are identical except for strike price, and strike prices satisfy (K1) What are the no-

Variable interest rate, What is Variable Interest Rate? Interest rates whic...

What is Variable Interest Rate? Interest rates which is offered by banks or financial institutions on loans or deposits which are liable to change according to circumstances. For e

Flight control - root location, In a continuous time linear system whenever...

In a continuous time linear system whenever any of the characteristic roots, say λ, has a positive realpart, ie R e (λ) = λ R > 0, then the system is unstable. Stability is ensure

Calculating the thrust of the engine - engine performance, Calculating the ...

Calculating the thrust of the engine: When applying the above method to calculate the individual thrust loads on the various components it is assumed that the engine is static.

Components of amplifier, Expertsmind.com brings you unique solution in el...

Expertsmind.com brings you unique solution in electrical engineering RESISTORS: Resistors are designed to drop the amount of voltage going through them, this allow

Monolithic ic, Monolithic IC: The monolithic IC is constructed in basic...

Monolithic IC: The monolithic IC is constructed in basically the same manner as a "Bipolar Transistor", although the overall process requires a few additional steps because of

How will you make finance forecasting ?, how will you make finance forecast...

how will you make finance forecasting ? First I will evaluation the past seasons fiscal reports to get an Idea about the economical functions. Then will talk about with the cont

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