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

Laurent polynomial, how to perform division of two laurent polynomials?

how to perform division of two laurent polynomials?

Rotating Equipment, #What are the types of pumps used in oil industry? How...

#What are the types of pumps used in oil industry? How to perform fault finding report?

Aviation legislation - Variant Aircraft, Variant Aircraft A variant air...

Variant Aircraft A variant aircraft is one that embodies certain design features which differ from one for which a Certificate of Airworthiness (C of A) has previously been iss

Thermo electric thermometer, how thermoelecteric thermometer is contructed ...

how thermoelecteric thermometer is contructed and how it working

Agricultural engineering , Agricultural engineering does not easily mean on...

Agricultural engineering does not easily mean only fruits and vegetables formed from the fields. Agriculture has come up with a dissimilar  look now. When you open a paouch of chip

K-map, simplify using k-map f=sum(0,4,5,6,9,10,12)+d(1,15)

simplify using k-map f=sum(0,4,5,6,9,10,12)+d(1,15)

Mba financial management , Which type of financing is appropriate to each f...

Which type of financing is appropriate to each firm caselet

Case study, dhpl is the firm situated in faridabad,its ending year on 31st ...

dhpl is the firm situated in faridabad,its ending year on 31st march 2009 ,1000million asset base rs.650 million & the net profit of the company was 76 milloin the managmnt of the

Thermodynamics, find the relation between enthalpy and internal energy?

find the relation between enthalpy and internal energy?

Flame photometer, please explain a bout blog diagram of flame photometer

please explain a bout blog diagram of flame photometer

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