FACULTY

APPLIED TECHNOLOGIES

DEPARTMENT

AIRCRAFT TECHNOLOGY ENGINEERING

LEVEL OF STUDIES

UNDERGRADUATE

MODULE CODE

AE2160T

SEMESTER OF STUDIES

3^RD

MODULE TITLE

INDEPENDENT TEACHING ACTIVITIES

TEACHING HOURS PER WEEK

CREDIT UNITS

Lectures

2

3

Practice

1

COURSE TYPE

Specialty course

PRE-REQUIRED COURSES:

TEACHING AND EXAMINATION LANGUAGE

GREEK

THE COURSE IS OFFERED TO ERASMUS STUDENTS

COURSE WEBSITE (URL)

Learning objectives

After completing successfully the course, students should know the characteristics of fuels and lubricants which are used in aircraft and identify the location in the fuel system or lubrication circuit which causes the malfunction in the aircraft systems. 

General skills

Search, analysis and combination of data and information with the use of the necessary technologies

·                                                                                                                                        Energy and conventional fuels. Fuels classification. Energy units correlations. Liquid and gas fuels. Solid fuels. Energy balance of Greece.

·                                                                                                                                        Cruid oil. Oil composition. Cruid oil properties. Density, color, vapour pressure, viscosity, flow point, distillation, sulfur content.

·                                                                                                                                        Gasoline. Gasoline preparation. Spark ignition engine. Mixture formation and ignition. Combustion process. Problems and limitations during combustion. Combustion and blow by in the gasoline engine. Spark plug blow by. Lead alkyls and other anti knock additives. Organic anti knock additives. Gasoline characteristics (vapour pressure, density, sulfur content, bromine number, water content, corrosiveness, heat generation force, viscosity, surface pressure).  

·                                                                                                                                        Diesel. Diesel preparation. Ignition engine with compression. Diesel engines. Diesel engine combustion. Cetane number. Problems and limitations during combustion in diesel engine. Cetane number additives. Diesel characteristics (density, ignition quality, cetane indicator, diesel indicator, aniline point, sulfur content, ash, corrosiveness, heat generation power, cloud point, flow point, paraffin point, cool filter obstruction point). Low temperature flow test.

·                                                                                                                                        Aviation gasoline. Aviation galoline properties. Anti knock capability. Mixture response. Flightworthiness. Volatility. Vapour pressure and release. Cooling temperature. Viscosity. Water solubility. Aviation gasoline chemical compositions. Specifications. Gasoline colors. Storage and stability of aviation gasolines.

·                                                                                                                                        Gas turbine fuels. Gas turbine engine characteristics. Carbon stocks. Combustion efficiency. Kerosene types. Chemical composition and properties. Natural properties. Start up.

·                                                                                                                                        Εffect of flight altitude on combustion. Pressure and temperature change with altitude. Effect of pressure and temperature on combustion. Fuel loss, air release. Effect of temperature reduction. Water separation and ice formation. Formation of fuel crystals. High temperature properties. Temperature consistency. Combustion quality.  

·                                                                                                                                        Preparation and additives of mineral oils. Mineral oils classification. Mineral oil method of preparation. Vacuum distillation. Εxtraction with solvents. Deparaffinization unit. Deasphaltization. Hydrogenation. Lubricant additives. Viscosity indicator improvement. Anti oxidant additives. Anti foaming additives. Demulsifiers. Friction regulators. Anti corrosive additives. Cleaning additives. Scattering additives. High pressure additives. Wear protection additives.

·                                                                                                                                    Properties of mineral oils. Chemical properties. Viscosity, viscosity change with temperature, viscosity indicator calculation, viscosity change with pressure, mixture viscosity calculation, density, flow properties in low temperatures, cloud point, flow point, ignition point, combustion point, colour, ash, foaming, emulsification-demulsification, carbon deposits, corrossiveness, resistance to oxydization, water content. Viscosity specifications, multitype mineral oils, I.C.E mineral oil classification according to their quality. Composite lubricants.

·                                                                                                                                    Lubricating grease. Definition. Lubricating grease function. Advantages and disadvantages of lubricating grease over other lubricants. Lubricating grease aging. Liquid lubricants. Mineral oils. Composite oils. Thickeners and soaps. Methods of preparation and properties. Viscosity, drop point. Lubricant recycling. Treatment with acids. Extraction with propane. Grease quality.

·                                                                                                                                    Non conventional processing. Electrochemical processing. Electro corosion. Laser beam process. Electron beam processing. Abrasive grain processing. Composite material preparation.  

ΤEACHING METHOD

Face to face

USE OF INFROMATION AND COMMUNICATION TECHNOLOGIES

TEACHING ORGANIZATION

STUDENT EVALUATION

Final written examination

-Suggested Bibliography :

Καύσιμα-Λιπαντικά, Εκπαιδευτικό Βιβλίο Ιδρύματος Ευγενίδου

Kαύσιμα-Λιπαντικά, Εγχειρίδιο Σχολής Ικάρων.

Χ. Μπίγγου και Χ. Καραπάνου, Καύσιμα-Λιπαντικά, Μακεδονικές Εκδόσεις.

-Συναφή επιστημονικά περιοδικά: