Reaction engines - aircraft maintance, Other Engineering

Assignment Help:

These can be divided into several categories.

Turbojet engines. The turbojet was the first type of jet engine developed. In this engine all the air passes through the core engine (i.e. the compressor, combustor and turbine). The engine may be single shaft as in the Avon engine, or twin shafted as in the Olympus 593 fitted to Concorde.

These engines are noisy and are not the most fuel efficient for normal use, however for high altitude high speed flight they are in a class of their own.

1054_reaction engine.png

b. Low and Medium By-pass or turbofan engines. These engines will have two or three shafts. The Low Pressure (LP) shaft drives a larger diameter compressor. Some of the air produced by-passes the core engine (hence the name) and is used to provide thrust. The core airflow provides power for the compressors and thrust. These engine are quieter than turbojets and more fuel efficient. The Spey and

Tay engines fall into this category.

1024_reaction engine2.png

The by-pass ratio is determined by the ratio of the air in flowing through the by-pass to the air passing through the core of the engine. Low by-pass less than 2:1, medium by-pass 2:1 to 4:1, high by pass greater than 5:1.
c. High by-pass turbofan engines. These engines have very large fans driven by a relatively small core engine. Often the fan is geared to run at a lower speed than the LP turbine, which gives the turbine mechanical advantage and also allows it to run at higher speed where it is more efficient. The ALF 502, RB211 and the Trent engines are all high by-pass
High by-pass engines are very fuel efficient, powerful and quiet. These engines have a very large diameter which does give drag problems, and are not suitable for high speed flight as the blade tips will suffer compressibility problems as they approach the speed of sound.

170_reaction engine1.png

 


Related Discussions:- Reaction engines - aircraft maintance

Function, what is function independence.on software engineering

what is function independence.on software engineering

Sustainable energy processes, PEME5451/3451 SUSTAINABLE ENERGY PROCESSES As...

PEME5451/3451 SUSTAINABLE ENERGY PROCESSES Assignment 5: Transport fuels VLE submission deadline is Friday 24th February PART 1: (worth 40%, all parts marked equally) 1. Using the

Vacuum investment casting , Vacuum Investment Casting : TITANIUM INVEST...

Vacuum Investment Casting : TITANIUM INVESTMENT CASTING uses lost-wax investment tooling to cast intricate shapes in titanium, zirconium and their alloys. A wax pattern is coa

Fire suppression in aircraft , Fire suppression Typical fixed systems i...

Fire suppression Typical fixed systems in the types of aircraft for which fixed fire extinguisher systems are specified, it is usual for the extinguishant to be stored in the c

What are the elements limiting higher data rate in networks, Question: ...

Question: (a) What are the elements limiting high data rate in cellular networks? (b) Describe the following characteristics of 4G mobile networks: - Always on - RAN A

Qualitative risk assessment - fire protection engineering, Qualitative risk...

Qualitative risk assessment - fire protection engineering: NFPA 551 discusses the differences between qualitative risk assessment and quantitative risk assessment. Qualitat

System dynamics , System Dynamics  Crucial to the development of a guid...

System Dynamics  Crucial to the development of a guidance system is an understanding of the dynamics of the system. In particular, it is necessary to understand how the acceler

AVIATION, CONSTRUCTION, OPERATION, AND MAINTENANCE OF AVIATION METAL PROPEL...

CONSTRUCTION, OPERATION, AND MAINTENANCE OF AVIATION METAL PROPELLER

Cell arrays matlab, Expertsmind.com offers  Cell Arrays matlab assignment ...

Expertsmind.com offers  Cell Arrays matlab assignment help In matlab, Cell arrays are just like frequent arrays in that they are "indexed" details of information, with an out

Memory card functiOn, How does small memory card can read all photos and vi...

How does small memory card can read all photos and videos and saves by using what?

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