| Module Title: | Propulsion Systems 1 |
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| Language of Instruction: | English |
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| Teaching & Learning Strategies: |
This module will be taught by Lectures, Tutorials & Practical/Trouble-shooting tasks. |
| Module Aim: |
The student will understand the working principles of aircraft gas turbine, piston engines and propellers. |
| Learning Outcomes |
| On successful completion of this module the learner should be able to: |
| LO1 |
Explain the theoretical fundamentals of the gas turbine and piston engines. |
| LO2 |
Describe the principles of operation of an engines ancillary systems, eg oil and fuel. |
| LO3 |
Recognise the fundamental principles of a propeller. |
| LO4 |
Classify the relationship between an engine and an aircraft’s on-board systems. |
| Pre-requisite learning |
Module Recommendations
This is prior learning (or a practical skill) that is recommended before enrolment in this module.
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| No recommendations listed |
Incompatible Modules
These are modules which have learning outcomes that are too similar to the learning outcomes of this module. |
| No incompatible modules listed |
Co-requisite Modules
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| No Co-requisite modules listed |
Requirements
This is prior learning (or a practical skill) that is mandatory before enrolment in this module is allowed. |
| No requirements listed |
Module Content & Assessment
| Indicative Content |
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Fundamentals
Potential energy, kinetic energy, Newton's laws of motion, Brayton cycle; Otto Cycle, Diesel Cycle. The relationship between force, work, power, energy, velocity, acceleration; Constructional arrangement and operation of turbocharged, supercharged, turbojet, turbofan, turboshaft, turboprop.
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Piston Engine Construction
Crankcase, crankshaft, camshafts, sumps, accessory gearbox, cylinder and piston assemblies, connecting rods, inlet and exhaust
manifolds, valve mechanisms, propeller reduction gearboxes.
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Gas Turbine Construcion.
Inlets, Compressors, Combustors, Turbines and Exhaust.
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Propeller Fundamentals
Blade element theory; High/low blade angle, reverse angle, angle of attack, rotational speed; Propeller slip; Aerodynamic, centrifugal, and thrust forces; Torque; Relative airflow on blade angle of attack; Vibration and resonance
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Propeller Construction
Construction methods and materials used in wooden, composite and metal propellers; Blade station, blade face, blade shank, blade back and hub assembly; Fixed pitch, controllable pitch, constant speeding propeller; Propeller/spinner installation
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Propeller Pitch Control
Speed control and pitch change methods, mechanical and electrical/electronic; Feathering and reverse pitch; Overspeed protection.
Reverse pitch protection and associated electronic systems.
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Piston Engine Supercharging / Turbocharging.
Principles and purpose of supercharging and its effects on engine parameters, construction and operation of supercharging / turbocharging systems, system terminology, control systems, system operation and system protection.
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Bearings and Seals
Constructional features and principles of operation
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Lubricants and Fuels
Properties and specifications; Fuel additives; Safety precautions.
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Lubrication Systems
System operation/lay-out and components
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Fuel Systems
Operation of engine control and fuel metering systems including electronic engine control (FADEC); Systems lay-out and components.
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Starting and Ignition Systems
Operation of engine start systems and components; Ignition systems and components; Maintenance safety requirements.
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Engine Indication Systems
Exhaust gas temperature/ Interstage turbine temperature systems, engine speed, engine thrust Indication: engine pressure ratio (EPR), engine Turbine Discharge pressure or jet pipe pressure systems, Oil pressure and temperature, Fuel pressure, temperature and flow, Manifold pressure, Engine torque and Propeller speed, Exhaust gas analysis.
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Turbo-prop Engines
Gas coupled/free turbine and gear coupled turbines; Reduction gears; Integrated engine and propeller controls; Overspeed safety devices.
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Auxiliary Power Units (APUs)
Purpose, operation, protective systems
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Fire Protection Systems
Operation of detection and extinguishing systems
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Engine Monitoring and Ground Operation
Procedures for starting and ground run-up; Interpretation of engine power output and parameters; Trend (including oil analysis, vibration and boroscope) monitoring; Inspection of engine and components to criteria, tolerances and data specified by engine manufacturer; Compressor washing/cleaning; Foreign Object Damage.
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Propeller Synchronisation and Synchrophasing.
Beat frequency, master, slave.
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Sustainability
Methods to reduce engine emissions and engine noise.
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| Assessment Breakdown | % |
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| Continuous Assessment | 20.00% |
| Practical | 20.00% |
| End of Module Formal Examination | 60.00% |
| Continuous Assessment |
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| Assessment Type |
Assessment Description |
Outcome addressed |
% of total |
Assessment Date |
| Examination |
Each student will take short answer question exams, administered during term time for which a maximum of 10% will be awarded |
1,2 |
10.00 |
Week 4 |
| Examination |
Each student will take short answer question exams, administered during term time for which a maximum of 10% will be awarded |
2,4 |
10.00 |
Week 10 |
| Practical |
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| Assessment Type |
Assessment Description |
Outcome addressed |
% of total |
Assessment Date |
| Practical/Skills Evaluation |
Each student will complete practical tasks during the module with a brief task report, administered during term time for which a maximum of 20% will be awarded. |
3 |
20.00 |
Every Week |
| End of Module Formal Examination |
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| Assessment Type |
Assessment Description |
Outcome addressed |
% of total |
Assessment Date |
| Formal Exam |
Each student will sit a formal written examination a the end of the module for which a maximum of 70% will be awarded. |
1,2,3,4 |
60.00 |
End-of-Semester |
SETU Carlow Campus reserves the right to alter the nature and timings of assessment
Module Workload
| Workload: Full Time |
| Workload Type |
Frequency |
Average Weekly Learner Workload |
| Lecture |
12 Weeks per Stage |
3.00 |
| Practicals |
12 Weeks per Stage |
2.00 |
| Independent Learning |
15 Weeks per Stage |
4.33 |
| Total Hours |
125.00 |
Module Delivered In
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