Subject: A/C Engines and Jet Propulsion Units : 5 5...

Subject: A/C Engines and Jet Propulsion محرآات طائرة و دفع: الموضوع Weekly Hours : Theoretical :2 Units : 5 2: نظري : الساعات األسبوعية 5: الوحدات

Tutorial : 1 1: مناقشة Experimental : 1 1: عملي

Week Contents األسبوع المحتويات 1 Classification of propulsion

systems - The thrust equation 1 معادلة الدفع–تصنيف منظومات الدفع

2 Engine performance and A/C range

2 أداء محرك الطائرة

3 Turbo jet engine 3 المحرك النفاث التوربيني 4 Turbo fan engine المحرك المروحي التوربيني– turbo fan 4 5 Turbo prop engine المحرك المروحي التوربيني– turbo prop 5 6 Ram-jet , Pulse-jet engines 6 النفاث الضغاطي ،النبضيالمحرك 7 Subsonic inlets 7 المداخل تحت الصوتية 8 Supersonic inlets 8 المداخل فوق الصوتية 9 Types of supersonic inlets 9 خل فوق الصوتيةالمداأنواع

10 Euler pump and turbine equation 10 معادلة أويلر للمضخة و التوربين 11 Centrifugal flow compressors –

Construction 11 المكونات –الضواغط القطرية

12 Centrifugal flow compressors – Basic theory

12 األساسيةالنظرية –الضواغط القطرية

13 Axial flow compressors – Construction

13 المكونات –الضواغط المحورية

14 Axial flow compressors – Blade terminology

14 تصنيف الريش– الضواغط المحورية

15 Axial flow compressors – Velocity triangles

15 مثلثات السرع– الضواغط المحورية

16 Axial flow compressors – Basic theory

16 النظرية األساسية– الضواغط المحورية

17 Development of combustor 17 غرفة االحتراق 18 The combustion process 18 عملية االحتراق 19 Types and components of

combustors 19 أنواع و أجزاء غرفة االحتراق

20 Fuel injectors 20 قودحاقنات الو 21 Theory of after burners 21 المحارق الالحقة 22 Radial flow turbines – Types and

construction 22 األنواع و المكونات – التوربينات القطرية

23 Radial flow turbines – Basic theory 23 النظرية األساسية– التوربينات القطرية24 Axial flow turbines – Types and

construction 24 األنواع و المكونات– التوربينات المحورية

25 Axial flow turbines – Basic theory 25 النظرية األساسية– التوربينات المحورية 26 Axial flow turbines – Blade cooling 26 تبريد الريش– التوربينات المحورية 27 Theory of nozzles expansion 27 النظرية–لمنافث ا 28 Types of nozzles 28 أنواع المنافث 29 Thrust reversers 29 عاآسات الدفع 30 Noise suppressors 30 آاتمات الضوضاء

CLASIFICATION OF AEROENGINES

Aircraft power plants (engines) are internal combustion engines and are

of two types:

or intermittent combustion enginespiston engines: eType on

or continuous combustion enginesair breathing engines: Type two

Type two can be subdivided into engines:

:which include gas generator Without -

* Athodyd (Aero thermodynamic ducts) which includes:

The Ram jets, and

The Pulse jets.

* Rockets which could be:

Solid fuel, or

Liquid fuel.

: which includesWith gas generator -

* Turbojet engines that can be of:

Single spool, or

Double spool.

* Bypass engines that can have:

Front fan, or

After fan.

* Turbo shaft engines that can be: Helicopter engine, or Turbo propeller engine.

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CLASIFICATION OF AEROENGINES

Aircraft power plants (engines) are internal combustion engines and are

of two types:

or intermittent combustion enginespiston engines: eType on

or continuous combustion enginesair breathing engines: Type two

Type two can be subdivided into engines:

:which include gas generator Without -

* Athodyd (Aero thermodynamic ducts) which includes:

The Ram jets, and

The Pulse jets.

* Rockets which could be:

Solid fuel, or

Liquid fuel.

: which includesWith gas generator -

* Turbojet engines that can be of:

Single spool, or

Double spool.

* Bypass engines that can have:

Front fan, or

After fan.

* Turbo shaft engines that can be: Helicopter engine, or Turbo propeller engine.

١

Definitions

This includes the evaluation of the : Engine Performance: 2.3.2

following parameters.

Propulsive efficiency: is the ratio of thrust power (TU) to the rate of

production of propellant kinetic energy.

Thermal efficiency: is the ratio of rate of addition of kinetic energy to

the propellant to the total energy consumption.

Propeller efficiency: is the ratio of thrust power to the shaft power.

Overall efficiency: is the product of propulsive efficiency by the thermal

efficiency.

A/C range

Specific fuel consumption (SFC): is the ratio of mass of fuel consumed

to the thrust produced (TSFC). Or the ratio of mass of fuel consumed to

the shaft power (BSFC). Or the ratio of mass of fuel consumed to the

equivalent shaft power (EBSFC).

2.3: Examples

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