Passive clearance control system - aircraft engine, Other Engineering

Assignment Help:

Passive clearance control system :

Compressor discharge air and HP compressor air provide cooling airflow to protect the turbine casing against rapid temperature changes.
The stationary parts in the high-pressure turbine section expand and contract more rapidly than the rotor due to pressure and temperature changes. The rotor also has a radial expansion due to rotational speed.

The turbine casing incorporates temperature controlled casing flanges with cooling air passages for the passive case clearance control system. The cooling air controls the expansion and contraction of the case to match the rotor and thus maintain desired clearances throughout all temperature ranges and operating conditions.

1081_PASSIVE CLEARANCE CONTROL SYSTEM.png

Figure shows (highlighted) air tubes (Bird Cage) that cools the HP and LP turbines. The air is taken from just aft of the fan and ducted through the cowls (not shown).

 


Related Discussions:- Passive clearance control system - aircraft engine

Boroscope inspections of air craft engine, Boroscope inspections: Boros...

Boroscope inspections: Boroscope inspections involve looking at components within an engine using an optical probe. The probes are inserted in to the engine through ports in th

What is the meaning of context-awareness, Question : (a) The Guide proj...

Question : (a) The Guide project has been developed to provide city visitors with a hand-held context-aware tourist guide. (i) In this case, what is the meaning of context-a

Compressor damage, Compressor Damage Foreign objects often enter engine...

Compressor Damage Foreign objects often enter engine air intakes either accidentally or through carelessness. Items such as pens, pencils cigarette lighters etc. can be drawn o

Aviation legislation - air operator''s certificate (aoc), Air Operator's Ce...

Air Operator's Certificate (AOC) A Company operating an aircraft for the purpose of Public Transportation, within the UK, must have an AOC granted to the company, in accordance

Aerodynamics-supercritical aerofoils, Design Features of Supercritical Aero...

Design Features of Supercritical Aerofoil • Blunt nose- rapid p pressure reduction around leading edge • Flat top- Reduce the flow acceleration on upper surface toreduc

Fuel flow metering-aircraft engine, FUEL FLOW METERING: Fuel flowmeters...

FUEL FLOW METERING: Fuel flowmeters are fitted in aircraft to give an accurate indication of the rate at which fuel is being used and the total amount of fuel that has been use

Wing design for a sports glider , Wing design for a sports glider  Th...

Wing design for a sports glider  The justification of the aerofoil selection with appropriate data, based on tunnel work or computational analysis.  Sizing of the wing in

Mechanical pulverization, Mechanical pulverization method is applicable to...

Mechanical pulverization method is applicable to brittle metals like antimony. Many varieties of mechanical pulverizers are in use; some of these have counter rotating plates or r

Deformation of metals, Q. Explain the following with reference to deformati...

Q. Explain the following with reference to deformation of metals:                         (1) Preferred orientation                         (2) Elastic after effect

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