Ideal intake conditions - aircraft engine, Other Engineering

Assignment Help:

Ideal intake conditions:

For air to flow smoothly through a compressor, its velocity should be about 0.5 mach at the compressor inlet; this includes aircraft flying faster than the speed of sound. Hence intakes are designed to decelerate the free stream airflow to this condition over the range of aircraft speeds. Intakes should also convert the kinetic energy into pressure energy without undue shock or energy loss. This means that the ideal compressor inlet pressure should be the same as the total head pressure at the intake lip.

Intake Efficiency

The magnitude of the losses occurring in an intake during ram compression are measured by means of the intake efficiency. Typical optimum efficiencies of some common types of intake, at subsonic speeds assuming straight-through flow, are:

a   Turbo-jet engine Pitot 99 to 96%
Wing root 95 to 87%
Side 89 to 80%

b Turbo-prop engine Annular 82 to 74% (DART)

In cases where the direction of flow of the air is reversed within the intake, these values are reduced by about 10%.

 


Related Discussions:- Ideal intake conditions - aircraft engine

Risk Analysis, how would I find assistance with such toics as: probability ...

how would I find assistance with such toics as: probability assessment methods, risk modeling, stochatic dominance and multi-attribute methods?

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

Diffraction of light, what do you mean by diffraction of light? what is the...

what do you mean by diffraction of light? what is the diffrence between interference and diffraction of light?distinuish between Fresnel''s and Fraunhofer''s diffraction.

Pitot intakes - aircraft maintenance , Pitot intakes: This intake is su...

Pitot intakes: This intake is suitable for subsonic or low supersonic speeds. Examples, 707, 747, A300B, Tristar, etc. The intake is usually short and is very efficient becau

What is the difference between real money & nominal money?, What is the dif...

What is the difference between real money & nominal money? 1) Nominal cash is related to the measure of counting. Moderate figure is what is written on the bill. Whereas actual

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

Health care finance basic tool for nonfinancial managers, based on your man...

based on your managemet style or your personal perspective, discuss how you developed your viewpoint how it will influence the way you manage, and what challenges you migt face if

Limited travel distances - means of escape, Limited travel distances - mean...

Limited travel distances - means of escape: Are travel distances within the maximum allowable distances published in the guidance? Is there good visibility in the

Process Control, Specify the inner-loop gain such that the damping coeffici...

Specify the inner-loop gain such that the damping coefficient of the closed loop is equal to 0.4

Cash mangement, how to do a cash management project report ,including probl...

how to do a cash management project report ,including problems?example?

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