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

Thermodynamics, show that heat and work are path functons

show that heat and work are path functons

Explain the concept of postmodernism in detail, Question 1 Write a long no...

Question 1 Write a long note on Professional Cultures in a ‘Golden Age' Question 2 Write a long note on the Global and Local Interrelationship Question 3 Write a long no

Passive clearance control system - aircraft engine, Passive clearance contr...

Passive clearance control system : Compressor discharge air and HP compressor air provide cooling airflow to protect the turbine casing against rapid temperature changes. Th

Ideal intake conditions - aircraft engine, Ideal intake conditions: For...

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

Npv, Problem 1 Suppose a company is considering two independent projects, P...

Problem 1 Suppose a company is considering two independent projects, Project A and Project B. The cash outlay for Project A is $14,000. The cash outlay for Project B is $20,000. T

Importance of capital budgeting decision, The study is conducted to know th...

The study is conducted to know the importance of capital budgeting decision and the techniques to evaluate the investment projects. There are a variety of discounted and non-disco

Mvar structural time series model, I need the code for a multivariate struc...

I need the code for a multivariate structural time series model with multiple cyclical components - any language is good.

External cooling -aircraft engine , External cooling Cooling of the ext...

External cooling Cooling of the external skin of an aero-engine is achieved by suitable design of the aircraft airframe; the layout will depend upon where the engine is fitted

Damping coefficint of canatrd of aircraft, what will be the methodology to ...

what will be the methodology to calculate pitching moment damping coefficient of canrad of aircraft

Modified accelerated cost recovery system , Modified Accelerated Cost Recov...

Modified Accelerated Cost Recovery System (MACRS) Although SLN is the most commonly used depreciation method in the U.S. for purpose of financial reporting, MACRS is the only

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