MEC2106 Introduction to Thermo-Fluids
|Semester 2, 2013 External Toowoomba|
|Faculty or Section :||Faculty of Engineering & Surveying|
|School or Department :||Mechanical and Mechatronic Engineering|
|Version produced :||21 July 2014|
Examiner: Ray Malpress
Moderator: Ahmad Sharifian-Barforoush
Pre-requisite: (MAT1500 or ENM1600) and CIV1501
ThermoFluids is an important course to mechanical engineers. It involves an introduction to energy conservation in systems, fluid mechanics basics and heat transfer.. Any qualifying course within the mechanical engineering profession must have a core subject presenting the fundamental concepts of thermodynamics, fluid behaviour both under static and dynamic conditions. and heat transfer.
Technologists have a particular need to understand the behaviour of fluids for, amongst other things, they have the professional task of employing them in the massive technological field of energy conversion. This course presents the fundamental concepts of fluid behaviour, both under static and dynamic conditions. This course is designed to give the student the ability to analyse many practical problems in which fluid is the working medium. The aims of the analysis are to estimate forces on objects due to the fluid which can be either static or flowing (this is an important step in the design of these objects), to detect causes of decline in performance, and to recommend solutions to prolong the life and improve efficiencies of fluid systems. Basics of Thermodynamics and heat transfer in its three different modes; conduction, convection and radiation, are also introduced. This is to enable the student to analyse simple thermal systems and cycles.
The course objectives define the student learning outcomes for a course. On completion of this course, students should be able to:
- estimate work and heat required to accomplish changes in ideal gases and steam;
- analyse simple systems with fluid as the working medium to estimate flow rates, pressures and forces, and select an appropriate pump for a particular system;
- analyse simple thermal systems in order to estimate heat gain or heat loss due to the different modes of heat transfer.
|1.||Introduction to thermodynamics, definitions, properties of pure substance, first law of thermodynamics.||12.00|
|2.||Introduction and fluid properties. Definition of a fluid, fluid properties, dimensions and units.||4.00|
|3.||Fluid statics. Pressure variations with elevation, pressure measurements, hydrostatic forces on submerged bodies.||10.00|
|4.||Flow of fluids. Continuity equation for one dimensional flow, causes of pressure variation in a flowing fluid, Bernoulli's equation and cavitation.||10.00|
|5.||General energy equation. Losses due to friction and minor losses, application for the energy equation in one dimensional incompressible flow in a pipe, laminar and turbulent flow in pipes and principals for pipe systems.||20.00|
|6.||Pumps selection and application, similarity laws.||8.00|
|7.||Forces due to fluids. The momentum equation, some applications on the momentum equation.||8.00|
|8.||Forces due to fluids, drag and lift forces.||8.00|
|9.||Flow of Gases, compressible flow in nozzles.||8.00|
Text and materials required to be purchased or accessed
ALL textbooks and materials available to be purchased can be sourced from USQ's Online Bookshop (unless otherwise stated). (https://bookshop.usq.edu.au/bookweb/subject.cgi?year=2013&sem=02&subject1=MEC2106)
Please contact us for alternative purchase options from USQ Bookshop. (https://bookshop.usq.edu.au/contact/)
Mott, RL 2006, Applied fluid mechanics, 6th edn, Pearson/Prentice Hall, Singapore.
(In SI Units.)
Black, WZ & Hartely, JG 1985, Thermodynamics, Harper & Row, New York.
Cengel YA & Boles MA 2011, Thermodynamics: an engineering approach, 7th edn, McGraw Hill, NY.
Finnemore, EJ & Franzini, JB 2002, Fluid mechanics with engineering application, 10th edn, McGraw-Hill, New York.
(SI Metric Edition.)
Kreith, F & Bohn, MS 2001, Principles of heat transfer, 6th edn, Brooks/Cole Publishing, Australia.
Munson, BR et al 2005, Fundamentals of fluid mechanics, 5th edn, Wiley & Sons, New York.
Student workload requirements
|Description||Marks out of||Wtg (%)||Due Date||Notes|
|ASSIGNMENT 1||150||15||30 Aug 2013|
|ASSIGNMENT 2||150||15||18 Oct 2013|
|2 HOUR RESTRICTED EXAMINATION||700||70||End S2||(see note 1)|
- Student Administration will advise students of the dates of their examinations during the semester.
Important assessment information
There are no attendance requirements for this course. However, it is the students' responsibility to study all material provided to them or required to be accessed by them to maximise their chance of meeting the objectives of the course and to be informed of course-related activities and administration.
Requirements for students to complete each assessment item satisfactorily:
To satisfactorily complete an individual assessment item a student must achieve at least 50% of the marks or a grade of at least C-. (Depending upon the requirements in Statement 4 below, students may not have to satisfactorily complete each assessment item to receive a passing grade in this course.)
Penalties for late submission of required work:
If students submit assignments after the due date without (prior) approval of the examiner then a penalty of 5% of the total marks gained by the student for the assignment may apply for each working day late up to ten working days at which time a mark of zero may be recorded. No assignments will be accepted after model answers have been posted.
Requirements for student to be awarded a passing grade in the course:
To be assured of receiving a passing grade in a course a student must obtain at least 50% of the total weighted marks for the course.
Method used to combine assessment results to attain final grade:
The final grades for students will be assigned on the basis of the weighted aggregate of the marks (or grades) obtained for each of the summative assessment items in the course.
In a Restricted Examination, candidates are allowed access to specific materials during the examination. The only materials that candidates may use in the restricted examination for this course are: writing materials (non-electronic and free from material which could give the student an unfair advantage in the examination); calculators which cannot hold textual information (students must indicate on their examination paper the make and model of any calculator(s) they use during the examination); a handwritten A4 sheet (two sides) containing any information that they believe will be relevant for the examination; Translation dictionary. Students whose first language is not English, may, take an appropriate unmarked non- electronic translation dictionary (but not technical dictionary) into the examination. Translation dictionaries will be subject to perusal and may be removed from the candidate's possession until appropriate disciplinary action is completed if found to contain material that could give the candidate an unfair advantage; no other materials are permitted in the examination. Charts, labels and graphs needed for the solution of the examination problems will be provided to you with the examination paper.
Examination period when Deferred/Supplementary examinations will be held:
Any Deferred or Supplementary examinations for this course will be held during the examination period at the end of the semester of the next offering of this course.
University Student Policies:
Students should read the USQ policies: Definitions, Assessment and Student Academic Misconduct to avoid actions which might contravene University policies and practices. These policies can be found at http://policy.usq.edu.au.
The due date for an assignment is the date by which a student must despatch the assignment to the USQ. The onus is on the student to provide proof of the despatch date, if requested by the Examiner.
Students must retain a copy of each item submitted for assessment. This must be despatched to USQ within 24 hours if required by the Examiner.
In accordance with University Policy, the Examiner may grant an extension of the due date of an assignment in extenuating circumstances.
If electronic submission of assessments is specified for the course, students will be notified of this in the course Introductory Book and on the USQ Study Desk. All required electronic submission must be made through the Assignment Drop Box located on the USQ Study Desk for the course, unless directed otherwise by the examiner of the course. The due date for an electronically submitted assessment is the date by which a student must electronically submit the assignment. The assignment files must be submitted by 11.55pm on the due date using USQ time (as displayed on the clock on the course home page; that is, Australian Eastern Standard Time).
If the method of assessment submission is by written, typed or printed paper-based media students should (i) submit to the Faculty Office for students enrolled in the course in the on-campus mode, or (ii) mail to the USQ for students enrolled in the course in the external mode. The due date for the assessment is the date by which a student must (i) submit the assessment for students enrolled in the on-campus mode, or (ii) mail the assessment for students enrolled in the external mode.
The Faculty will NOT normally accept submission of assessments by facsimile or email.
Students who do not have regular access to postal services for the submission of paper-based assessments, or regular access to Internet services for electronic submission, or are otherwise disadvantaged by these regulations may be given special consideration. They should contact the examiner of the course to negotiate such special arrangements prior to the submission date.
Students who have undertaken all of the required assessments in a course but who have failed to meet some of the specified objectives of a course within the normally prescribed time may be awarded one of the temporary grades: IM (Incomplete - Make up), IS (Incomplete - Supplementary Examination) or ISM (Incomplete -Supplementary Examination and Make up). A temporary grade will only be awarded when, in the opinion of the examiner, a student will be able to achieve the remaining objectives of the course after a period of non directed personal study.
Students who, for medical, family/personal, or employment-related reasons, are unable to complete an assignment or to sit for an examination at the scheduled time may apply to defer an assessment in a course. Such a request must be accompanied by appropriate supporting documentation. One of the following temporary grades may be awarded IDS (Incomplete - Deferred Examination; IDM (Incomplete Deferred Make-up); IDB (Incomplete - Both Deferred Examination and Deferred Make-up).
Harvard (AGPS) is the referencing system required in this course. Students should use Harvard (AGPS) style in their assignments to format details of the information sources they have cited in their work. The Harvard (AGPS) style to be used is defined by the USQ Library's referencing guide.