MECH ENG 2021 - Thermo-Fluids I
North Terrace Campus - Semester 1 - 2020
General Course Information
Course Code MECH ENG 2021 Course Thermo-Fluids I Coordinating Unit School of Mechanical Engineering Term Semester 1 Level Undergraduate Location/s North Terrace Campus Units 3 Contact Up to 7 hours per week Available for Study Abroad and Exchange Y Assumed Knowledge MATHS 1011 & MATHS 1012, C&ENVENG 1010 or CEME 1004 & MECH ENG 1007 Restrictions Available to Bachelor of Engineering (Honours) (Mechanical), Bachelor of Engineering (Honours) (Mining), Bachelor of Engineering (Honours) (Petroleum) & associated double degree students only Course Description An introduction to mechanical engineering thermodynamics, dealing with the application of the first and second laws of thermodynamics to the thermodynamic performance analysis of typical thermo-mechanical plant components, using condensable vapours or gases as the working fluid. The course includes energy and entropy balance for closed and open systems. Basic fluid mechanics including: kinematics and dynamics of fluid flows; conservation laws applied to fluid flow; Euler, Bernoulli, Navier-Stokes equations; dimensional analysis; differential and integral flow analysis; flow visualisation.
Course Coordinator: Dr Zhao Tian
The full timetable of all activities for this course can be accessed from Course Planner.
Course Learning OutcomesOn successful completion of this course students will be able to:
1 Explain the concepts and definitions used in fluid mechanics and thermodynamics; 2 Apply fundamental concepts and equations to practical problems; 3 Explain basic thermodynamics and its importance in thermal systems; 4 Explain basic gas laws and phase change processes; 5 Discuss the different forms of energy, its transfer and the laws that controls this transfer; 6 Discuss basic ideal thermal cycles and their application to daily life; 7 Recognise environmental responsiblity and current best practice for the design of efficient thermal system and cycles; and 8 Apply analytical cognitive skills and problem solving skills in thermodynamics and fluid mechanics.
The above course learning outcomes are aligned with the Engineers Australia Stage 1 Competency Standard for the Professional Engineer.
The course is designed to develop the following Elements of Competency: 1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 3.1 3.2 3.4
University Graduate Attributes
This course will provide students with an opportunity to develop the Graduate Attribute(s) specified below:
University Graduate Attribute Course Learning Outcome(s) Deep discipline knowledge
- informed and infused by cutting edge research, scaffolded throughout their program of studies
- acquired from personal interaction with research active educators, from year 1
- accredited or validated against national or international standards (for relevant programs)
1-8 Critical thinking and problem solving
- steeped in research methods and rigor
- based on empirical evidence and the scientific approach to knowledge development
- demonstrated through appropriate and relevant assessment
Two parts of Thermo-Fluids 1 Lecture Notes: Thermodynamics part and Fluid Mechanics parts, and Level 2 Labbook – all available from the Image & Copy Centre.
- Moran, M.J., Shapiro, H.N., D. D. Boettner & Bailey, M. B., Principles of Engineering Thermodynamics, John Wiley and Sons Inc, 8th Edition 2015 Wiley or
Moran, M.J., Shapiro, H.N., D. D. Boettner & Bailey, M. B., Fundamentals of Engineering Thermodynamics, John Wiley and Sons Inc, 7th Edition 2011 Wiley
Munson, Young, Okiishi & Huebsch, Fundamentals of Fluid Mechanics, John Wiley and Sons Inc, 6th Edition 2009 (or earlier editions)
The Barr Smith library has many books which are concerned with Thermodynamics and Fluid Mechanics. Students are encouraged to consult these books to enrich their knowledge in both topics.
The material available through MyUni:
- Course Outline and Introduction
- Course Content
- Lecture Notes
- Past exams
- Level II Lab book
MyUni is also used to communicate important announcements.
Learning & Teaching Activities
Learning & Teaching Modes
Lectures supported by modes developing material covered in lectures. These modes include problem-solving tutorials and a laboratory.
The information below is provided as a guide to assist students in engaging appropriately with the course requirements.
Course workload includes 48 hours lectures and tutorials, and 3 hours laboratory.
Learning Activities Summary
This course consists of combination of lectures and tutorials:
Introductory Thermodynamic Concepts
- Energy Model
- Problem Solving Methodology
- Engineering Design
(2 hrs lectures)
- Mechanical Concepts of Energy: KE, PE, Work
- Energy of a System
(1 hr lectures)
Energy Transfer and the First Law of Thermodynamics
- Energy Transfer by Heat
- Heat Transfer Modes
- Energy Balance of Closed Systems
- Energy Analysis of Cycles
(1 hrs lectures, 1 hr tutorial)
Properties of a Pure, Simple Compressible Substance
- State Principle
- p-v-T Relation
- Thermodynamic Property Data
- p-v-T Relation for Gases
- Ideal Gas Model
(3 hrs lectures, 1 hr tutorial)
Control Volume Analysis
- Conservation of Mass for a Control Volume
- Conservation of Energy for a Control Volume
- Analysis of Control Volumes at Steady State
- Examples of Several Important Devices
- Nozzles and Diffusers
- Compressors and Pumps
- Heat Exchangers
- Throttling Devices - Throttling Calorimeter
- Transient Analysis
(2 hrs lectures, 1 hr tutorial)
Second Law of Thermodynamics
- Work and Processes
- Statements of the Second Law
- Reversible and Irreversible Processes
(1 hr lecture)
Second Law Corollaries for Thermodynamic Cycles
- Energy Analysis of Thermodynamic Cycles
- Limitations on Power Cycles
- Limitations on Refrigeration and Heat Pump Cycles
- Kelvin Temperature Scale
(1 hr lectures)
Cycle Performance Measures and the Carnot Cycle
- Maximum Performance of Power Cycles
- Maximum Performance of Refrigeration and Heat Pump Cycles
- The Carnot Cycle
(1 hr lectures, 1 hr tutorial))
- Clausius Inequality
- Definition of Entropy Change
- Entropy of Pure, Simple Substances
- Entropy Change in Internally Reversible Processes
- Entropy Balance for Closed Systems
- Entropy Rate Balance for Control Volumes
- Isentropic Processes
- Isentropic Efficiency
- Heat Transfer and Work in Internally
- Reversible Steady Flow Processes
(4 hrs lectures, 1 hr tutorial)
- Introduction to Exergy
- Evaluation (Derivation)
- Exergy Balances for Closed Systems
- Flow Exergy
- Exergy Rate Balance for Control Volumes
- Second Law Efficiency
(2 hrs lectures, 1 hr tutorial) Fluid Mechanics:
Introduction & Basics
- Fluid Properties
- Problem Solving Methodology
1 hr lecture
- Introduction and Pascal's Law
- Pressure - A Scalar Term
- Pascal's Law for Pressure at a Point
- Pressure Variation with Depth
- Gauge Vs Absolute Pressure
- Forces on Plane Submerged Surfaces
- Subjected to Uniform Pressure
- Forces on Plane Submerged Surfaces
- Definitions of Centroid & Centre of Pressure
- Forces on Curved Surfaces
2 hrs lectures + 1 hr tutorial
Kinematics, Continuity & C.V. Analysis
- Flow Regimes: Laminar & Turbulent Flow in Pipes
- Describing Fluid Flow: Lagrangian Description, Eulerian Description
- Steady & Unsteady Flow
- Reference Frame and the Galilean Transformation
- Flow Lines
- Streamline Coordinate System
- Flow Dimensionality and Directionality
- Intensive and Extensive Parameters
- Material (Total/Lagrangian/Substantive) Derivative – Acceleration
- The Helmholtz Theorem
- Rotation, Angular Velocity and Vorticity
- Rate of Shear Deformation
- Rate of Volumetric Strain
- Control Volumes and Systems
- Reynolds Transport Theorem
- Conservation of Mass: Integral & Differential Continuity
- Flow Rate and Average Velocity
3 hrs lectures + 1 hr tutorial
Energy & Bernoulli Equations, Equations of Motion
- The General Energy Equation
- Average Properties and Velocities
- The General Energy Equation for a Streamline
- The Mechanical Energy Equation
- Bernoulli's Equation
- Pressure Coefficient or Euler Number
- Stagnation Pressure
- Pitot-Static Tubes
- Yaw Meters
- Venturi Flow Meters
- Equations of Motion:Euler's, Cauchy &Navier-Stokes Equations
3 hrs lecture + 1 hr tutorial
Dimensional Analysis, Similitude & Modelling
- Dimensional Homogeneity
- Buckingham's Π-Theorem
- Standard Π- Groups
- Dimensional Reasoning
- Dimensional Analysis by Inspection
- Physical Similarity: Geometric ,Kinematic &Dynamic
- Complete & Incomplete Physical Similarity
2 hrs lecture + 1 hr tutorial
Linear Momentum, Angular Momentum
- Derivation of the Linear Momentum Equation
- Terms in the Linear Momentum Equation
- Problem Solving
- Moving and Deforming Control Volumes
- Relative Velocity
- Derivation of the Angular Momentum Equation
2 hrs lecture + 1 hr tutorial
Turbomachinery and Turbomachine Performance
- Classes of Turbomachines
- Derivation of Euler's Pump and Turbine Equation
- Centrifugal Pumps and Fans-Simplifications
- Axial Flow Fans, Pumps and Turbines
- Departures from Euler's theory
- Energy Balance for Turbomachines
- Performance Curves of Turbomachines
- Performance Characteristics of Turbomachines
2 hrs lecture + 1 hr tutorial
Summary & Exam
1 hr lecture
Specific Course Requirements
Laboratory: This course includes a laboratory: Flow Visualisation – 3 hrs. Details provided in level 2 Labbook.
The University's policy on Assessment for Coursework Programs is based on the following four principles:
- Assessment must encourage and reinforce learning.
- Assessment must enable robust and fair judgements about student performance.
- Assessment practices must be fair and equitable to students and give them the opportunity to demonstrate what they have learned.
- Assessment must maintain academic standards.
Assessment Task Weighting (%) Individual/ Group Formative/ Summative Due (week)* Hurdle criteria Learning outcomes Fluid dynamics assignments (4) 10 Individual Summative Weeks 2-12 1. 2. 8. Fluid dynamics lab 5 Individual Summative Week 5 Min 40% 1. 2. 8. Thermodynamics assignments (4) 15 Individual Summative Week 6 2. 3. 4. 5. 6. 7. 8. Final exam 70 Individual Summative Exam period 1. 2. 3. 4. 5. 6. 7. 8. Total 100
This assessment breakdown is registered as an exemption to the University's Assessment for Coursework Programs Policy. The exemption is related to the Procedures clause(s): 1. b. 2.
This course has a hurdle requirement. Meeting the specified hurdle criteria is a requirement for passing the course.
Due to the current COVID-19 situation modified arrangements have been made to assessments to facilitate remote learning and teaching. Assessment details provided here reflect recent updates.
40% one online quiz and three written assingments (10% for each),
20% take home exam, 40% online exam.
30% four assignments (7.5% each),
10% flow visualisation lab report,
20% take home exam,
40% online exam.
The thermo part and fluids part will still consist of 50% + 50% of the total course.
Assessment Related Requirements
The Laboratory is compulsory part of a course. If a lab session is missed or a lab report not handed in or a student fails to get at least 35% of the total possible lab marks, then that is grounds for FAILURE of the entire course.
Assignments – individual, distributed through the semester at least two weeks prior to a submission date
Laboratory – assessment based on lab participation and a report (COMPULSORY component)
Final exam – open-book, 3 hours,
Assignments and lab reports should be submitted via corresponding Course Submission Box located on Level 2 of Engineering South. No late submissions are accepted although in special cases exemptions can be granted on individual basis. A “turn-around” timeline on assessments and the provision of feedback to students is approximately 2 weeks. Re-submission of work is not allowed.
Grades for your performance in this course will be awarded in accordance with the following scheme:
M10 (Coursework Mark Scheme) Grade Mark Description FNS Fail No Submission F 1-49 Fail P 50-64 Pass C 65-74 Credit D 75-84 Distinction HD 85-100 High Distinction CN Continuing NFE No Formal Examination RP Result Pending
Further details of the grades/results can be obtained from Examinations.
Grade Descriptors are available which provide a general guide to the standard of work that is expected at each grade level. More information at Assessment for Coursework Programs.
Final results for this course will be made available through Access Adelaide.
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