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MECH5265: Combustion (2019 - Semester 2)

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Unit: MECH5265: Combustion (6 CP)
Mode: Normal-Day
On Offer: Yes
Level: Postgraduate
Faculty/School: School of Aerospace, Mechanical & Mechatronic Engineering
Unit Coordinator/s: Professor Masri, Assaad
Session options: Semester 2
Versions for this Unit:
Campus: Camperdown/Darlington
Pre-Requisites: (MECH3260 AND MECH3261) OR MECH9260 OR MECH8260.
Brief Handbook Description: This unit of study aims to teach the basic principles of combustion highlighting the role of chemical kinetics, fluid mechanics, and molecular transport in determining the structure of flames. Students will become familiar with laminar and turbulent combustion of gaseous and liquid fuels including the formation of pollutants. They will also be briefly introduced to various applications such as internal combustion engines, gas turbines, furnaces and fires.

This unit will cover equilibrium compositions, flammability limits, simple chemically reacting systems, detailed chemical kinetics, and the basic theory underlying laminar and turbulent combustion for both premixed and non-premixed cases. There will be an introduction to droplet combustion, the concept of mixture fraction for non-premixed flames, combustion in engines and gas turbines as well as the formation of pollutants. Fire ignition, growth, spread and suppression may also be covered with respect to safety in buildings including the hazards related to the formation of smoke and toxic products.
Assumed Knowledge: Students are expected to be familiar with the basic laws of thermodynamics, fluid mechanics and heat transfer.
Timetable: MECH5265 Timetable
Time Commitment:
# Activity Name Hours per Week Sessions per Week Weeks per Semester
1 Lecture 2.00 1 13
2 Tutorial 1.00 1 12
3 Independent Study 4.00 1 13
T&L Activities: Lectures: Weekly 2 hours lectures will cover fundamentals of combustion science, applications and worked examples. A comprehensive set of lecture notes are available by download from Blackboard https://elearning.sydney.edu.au/

Tutorials: Weekly 1 hour tutorials will include a peer assessed in-class assignment question (approx. 20 minutes) followed by free time to work on practice problems and/or course assignments (approx. 40 minutes). Students should attend all lectures and tutorials.

Independent Study: Apart form the allocated contact hours, an average student is expected to spend approximately 3 to 4 hours per week on this UoS.

Learning outcomes are the key abilities and knowledge that will be assessed in this unit. They are listed according to the course goal supported by each. See Assessment Tab for details how each outcome is assessed.

Unassigned Outcomes
1. The ability to analyse combustion stability and the formation of pollutants in practical combustion devices.
2. An understanding of building design based on fire safety requirements.
3. An understanding of the fundamental theory of the combustion of non-premixed and premixed flames, laminar and turbulent flames, droplets and the theory of ignition.
4. An understanding of the role of detailed chemical kinetics in combustion and the ability to calculate the equilibrium compositions of reacting systems.
5. An understanding of pollutant formation in practical devices such as internal combustion engines and gas turbines.
6. Project work requires students to analyse combustors and fire safety. Involves the use of computational tools.
7. Demonstration of fundamental knowledge through quizzes and exams. Presentation of analysis and design through engineering reports.
8. Work in groups on projects assembled to represent common practice in industry.
Assessment Methods:
# Name Group Weight Due Week Outcomes
1 Assignments and quizzes (two each) No 20.00 Multiple Weeks 1, 2, 3, 4, 5,
2 Project and seminar Yes 40.00 Week 13 1, 2, 3, 4, 5, 7, 8,
3 Final Exam No 40.00 Exam Period 2, 3, 4, 5,
Assessment Description: Assignment: The assignments and/or quizzes will help students absorb the concepts and stay up to date with the pace of lectures.

Project: The project report and the seminar will test the ability of students to interact in a group environment, apply the concepts to a realistic problem, and relay them effectively in the form of a seminar and report. Group projects and seminars are aspects of training that are beneficial for engineers since this is common practice in fire and combustion engineering.

Final Exam: The final examination will help evaluate the overall understanding of the concepts covered in this unit and the student`s ability to analyze and solve related problems.
Grading:
Grade Type Description
Standards Based Assessment Final grades in this unit are awarded at levels of HD for High Distinction, DI (previously D) for Distinction, CR for Credit, PS (previously P) for Pass and FA (previously F) for Fail as defined by University of Sydney Assessment Policy. Details of the Assessment Policy are available on the Policies website at http://sydney.edu.au/policies . Standards for grades in individual assessment tasks and the summative method for obtaining a final mark in the unit will be set out in a marking guide supplied by the unit coordinator.
Policies & Procedures: See the policies page of the faculty website at http://sydney.edu.au/engineering/student-policies/ for information regarding university policies and local provisions and procedures within the Faculty of Engineering and Information Technologies.
Prescribed Text/s: Note: Students are expected to have a personal copy of all books listed.
  • An Introduction to Combustion

Note that the "Weeks" referred to in this Schedule are those of the official university semester calendar https://web.timetable.usyd.edu.au/calendar.jsp

Week Description
Week 1 Introduction and terminology.
Week 2 Thermochemistry
Week 3 Flammability, Ignition and Extinction
Week 4 Chemical kinetics.
Week 5 Simple Reacting Systems

Mixture Fraction Concept
Week 6 Laminar Diffusion Flames
Week 7 Laminar Premixed Flames
Week 8 Combustion Diagnostics
Week 9 Droplet evaporation and combustion. Spray flames.
Week 10 Turbulence and Modelling
Week 11 Turbulent Combustion
Week 12 Pollutant formation
Week 13 Student seminar on project.
Assessment Due: Project and seminar
Exam Period Assessment Due: Final Exam

Course Relations

The following is a list of courses which have added this Unit to their structure.

Course Year(s) Offered
Mechanical Mid-Year 2016, 2017, 2018, 2019, 2020
Mechanical/ Project Management 2019, 2020
Mechanical 2015, 2016, 2017, 2018, 2019, 2020
Mechanical / Arts 2015, 2016, 2017, 2018, 2019, 2020
Mechanical / Commerce 2015, 2016, 2017, 2018, 2019, 2020
Mechanical / Music Studies 2016, 2017
Mechanical / Project Management 2015, 2016, 2017, 2018
Mechanical / Science 2015, 2016, 2017, 2018, 2019, 2020
Mechanical/Science(Health) 2018, 2019, 2020
Mechanical / Law 2015, 2016, 2017, 2018, 2019, 2020
Mechanical (Space) 2015
Mechanical (Space) / Arts 2015
Mechanical (Space) / Commerce 2015
Mechanical (Space) / Project Management 2015
Mechanical (Space) / Science 2015
Mechanical (till 2014) 2014
Mechanical Engineering / Arts 2014
Mechanical Engineering / Commerce 2014
Mechanical Engineering / Project Management 2014
Mechanical Engineering / Science 2014
Mechanical Engineering / Law 2014
Mechanical (Space) (till 2014) 2014
Mechanical Engineering (Space) / Arts 2014
Mechanical Engineering (Space) / Project Management 2014
Mechanical Engineering (Space) / Science 2014
Master of Engineering 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
Mechanical/Science (Medical Science Stream) 2018, 2019, 2020
Master of Engineering (Mechanical) 2011, 2012
Master of Professional Engineering (Accelerated) (Mechanical) 2019, 2020
Master of Professional Engineering (Mechanical) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
Aeronautical Mid-Year 2019, 2020
Aeronautical/ Project Management 2019, 2020
Aeronautical 2019, 2020
Aeronautical / Arts 2019, 2020
Aeronautical / Law 2019, 2020
Mechanical / Medical Science 2016, 2017
Mechatronic Mid-Year 2019, 2020
Mechatronic/ Project Management 2019, 2020
Mechatronic 2019, 2020

Course Goals

This unit contributes to the achievement of the following course goals:

Attribute Practiced Assessed
(6) Communication and Inquiry/ Research (Level 3) No 0%
(7) Project and Team Skills (Level 4) No 0%
(8) Professional Effectiveness and Ethical Conduct (Level 4) No 0%
(5) Interdisciplinary, Inclusiveness, Influence (Level 4) No 0%
(4) Design (Level 4) No 0%
(2) Engineering/ IT Specialisation (Level 5) No 0%
(3) Problem Solving and Inventiveness (Level 4) No 0%
(1) Maths/ Science Methods and Tools (Level 3) No 0%

These goals are selected from Engineering & IT Graduate Outcomes Table 2018 which defines overall goals for courses where this unit is primarily offered. See Engineering & IT Graduate Outcomes Table 2018 for details of the attributes and levels to be developed in the course as a whole. Percentage figures alongside each course goal provide a rough indication of their relative weighting in assessment for this unit. Note that not all goals are necessarily part of assessment. Some may be more about practice activity. See Learning outcomes for details of what is assessed in relation to each goal and Assessment for details of how the outcome is assessed. See Attributes for details of practice provided for each goal.