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   MEM23006A

MEM230006A: Apply fluid and thermodynamics principles in engineering

Nominal Hours: 72 | Diploma/Adv Dip: Elective (Group 3) | Competency Based  
Assessment Plan A: (One Semester: 18 weeks)
Updated Oct 2013

 

FLUID MECHANICS (9 weeks)

Task Topic Description and Link to Notes Quiz # Practice
iTester
Assess
Moodle
Lesson
schedule
Assess schedule Work Load% Must Pass Book Chap
1

Fluid properties

10701 1 3 5 Y 2,8
2

Fluid Components 

10702 2 4 5 Y 9
3

Fluid Statics Examples

10703 3 5 20 Y 10
4

Fluid Flow

10704 4 6 20 Y 11
5

Fluid Power

10705 5 7 20 Y 12
6

Fluid Forces

10706 7 9 20 Y 13
7

Laboratories

- - - 8 9 10 Y All
8  Written Test: (If applied)
  • Written, unseen question test
Exam - - - 17* - Y All
- TOTAL - - - - - 100 - -

 

THERMODYNAMICS (9 weeks)

Task Topic Description and Link to Notes Quiz # Practice
iTester
Assess
Moodle
Lesson
schedule
Assess schedule Work Load% Must Pass Book Chap
1

Thermo Basics

10901 1 3 10 Y 1,2
2 Work Energy Power 10506 - - - Y Ivan 16
3 Thermo Energy 10902 1 3 10 Y 3
4 Closed Systems 10903 2 4 20 Y 4
5 Open Systems 10904 4 6 20 Y 4
6 Gases 10905 6 8 20 Y 5
7 Heat Engines 10906 7 9 20 Y 6
8

Laboratories

- - - 6 9 5 Y All
9  Written Test: (If applied)
  • Written unseen question test
Exam - - - 17* - Y -
- TOTAL - - - - - 100 - -

Quiz = Computer Based Testing: Typically consists of practice mode (iTester) and assessment mode (Moodle).
Exam = Written test submitted on paper, all working shown neatly.

*Where applicable.

 

Required Texts   

Text book Subjects Picture
Kinsky, Roger. 
Introductory Thermodynamics and Fluid Mechanics
McGraw-Hill. 1996
ISBN 0074702386
RRP $80.95 (June 2009)
  • Fluid Mechanics
  • Thermodynamics

 


ASSESSMENT

Assessment is a combination of multiple choice tests, written tests, and submitted reports (print/email).

  • Lab Reports: Specification for lab reports. (Including error analysis where required)
  • Project Reports: Specification for project reports.
  • TESTER tasks: Computer based learning and assessment using the TESTER program.
    Procedures and rules. For most computer-based assessments, homework must be presented before Tester (exam mode) can be attempted.  In some cases, certain programs (e.g. Excel) are excluded from running with Tester during an exam. 

This unit applies basic scientific principles and techniques in mechanical and manufacturing engineering situations, covering three branches of mechanics - Dynamics, Fluids and Thermodynamics.

MEM23041A UNIT INFORMATION

Elements of Competency and Performance Criteria

1. Determine scope of fluid or thermodynamic application
  1. Determine compliance requirements of work health and safety (WHS) and regulatory requirements, codes of practice standards, risk assessment and registration requirements
  2. Review sustainability implications of fluid and thermodynamic tasks Assess fluid, thermodynamic and vacuum principles, skills and techniques required by tasks
  3. Review functions and features of fluid, thermodynamic and vacuum devices, machines and systems
  4. Assess software techniques required for analysis and graphics required by the task
2. Interpret fluid or thermodynamic system design for effective performance
  1. Determine the energy cost for running boilers, heat engines, compressors or turbines over a billing period, the efficiency of conversion of energy source to electrical, fluid, thermal or mechanical power and the sustainability of the processes
  2. Select components for thermal and fluid systems ensuring compatible materials, pressure, temperature and flow capacity and appropriate performance
  3. Determine pumping system power requirements to provide for raising fluid, adequate flow rate and specified system losses
  4. Specify vacuum system components and performance requirements for moulding, dust removal, film deposition, chemical reaction control, and prove or test performance of specified system or individual components
  5. Seek technical and professional assistance or clarification of design information, as required
  6. Ensure clear and logical process of specification development and compatibility of units in calculations
3. Report results 
  1. Record results of investigation, evaluation and application
  2. Provide documentation, such as calculations, diagrams, programs and files

Glossary (Range Statement) 

Fluid and thermodynamic tasks

Fluid and thermodynamic tasks covered by this unit may include:

  • energy costs, efficiency and sustainability assessment of running boilers, heat engines, compressors or turbines
  • fluid and thermal system component selection
  • pumping and turbine system power evaluation
evaluating vacuum system components and performance requirements
Basic properties and units common to fluids and thermodynamics

Basic properties and units include:

  • mass, weight and force
  • volume, density, specific volume and relative density
  • pressure (absolute and gauge), and atmospheric pressure variation
  • temperature (Celsius, Kelvin and others)
  • viscosity and surface tension
  • vapour pressure of a liquid (saturation vapour pressure)
  • temperature and pressure effects on properties
  • international system of units (SI)
  • fundamental dimensions and units
derived dimensions and units
Static and hydrodynamic devices or systems

Static and hydrodynamic devices or systems may include:

  • floating and submerged bodies
  • turbine and pumping systems
  • stationary or moving plates or blades
vacuum systems
Thermodynamic devices or systems

Thermodynamic devices or systems may include:

  • heat transfer devices
  • compressors
  • boilers
  • turbines
  • heat exchangers
  • heat engines
  • refrigerators
heat pumps
Appropriate licensed technical and professional assistance

Appropriate licensed technical and professional assistance may include:

  • technical support and advice relating to elements which have intrinsic dangers, such as:
  • high pressure
  • energised fluid vessels
  • high temperatures and heat energy capacity
  • wiring with high current control voltages above extra low voltage
  • professional support for technologies, such as:
  • specialist electric motor drives and controllers
  • specialist materials, plastics, metal alloys and nano materials
special processes, foundry, alloy welding, heat treatment, sealing and fastening

WHS, regulatory requirements and enterprise procedures

WHS, regulatory requirements and enterprise procedures may include:

  • WHS Acts and regulations
  • relevant standards
  • codes of practice
  • risk assessments
  • registration requirements
  • safe work practices
state and territory regulatory requirements
Enthalpy Enthalpy is a thermodynamic property equal to the sum of the internal energy of a system and the product of its pressure and volume

Knowledge and Skills 

Skills
  1. determining and confirming parameters and context of tasks, personal responsibilities, team and support personnel relations, chain of responsibility, WHS, regulatory requirements, risk management and organisational procedures
  2. reviewing sustainability implications, functions and features of fluid, thermodynamic and vacuum devices, machines and systems
  3. assessing and applying fluid, thermodynamic and vacuum principles and software skills and techniques
  4. ensuring clear and logical process of specification development and compatibility of units in calculations
  5. reporting and documenting results of investigation, evaluation and application, calculations, diagrams, programs and files
Knowledge
  1. definition of fluid mechanics and thermodynamics and recognition of applications
  2. analytical, graphical, semi-graphical and software assisted techniques for applications for fluid and thermodynamic principles in engineering
  3. energy and sustainability concepts relevant to fluid and thermodynamic applications
  4. principles of turbines and heat engines
  5. basic properties and concepts common to fluids and thermodynamics:
  6. atoms, molecules, inter-molecular forces, molecular motion, states of matter, solids, liquids, gases, basic properties and units
  7. ideal or perfect gases and liquids
  8. definitions
  9. energy types and concepts:
  10. potential energy, kinetic energy and internal energy
  11. chemical energy = energy content of a fuel
  12. work, constant and variable force, relationship to pressure and volume changes
  13. sensible heat and specific heat capacity (Cp and Cv)
  14. phase change, latent heat, enthalpy and enthalpy diagram
  15. heat transfer processes
  16. concepts and properties of gases
  17. energy transfer in closed and open systems:
  18. definition of a closed system
  19. non-flow energy equation definition of an open system
  20. mass and volume flow rate and the continuity equation
  21. fluid mechanics
  22. fluid system components
  23. fluid statics
  24. fluid dynamics
  25. fluid power
  26. vacuum technology:
  27. definition of vacuum
  28. states of matter
  29. purposes of vacuums
  30. degrees of vacuum
  31. methods of lowering pressure:
  32. displacement or transfer of gas
  33. sorption or condensation
  34. barometric pressure:
  35. inverted mercury tube
  36. variation of atmospheric pressure with altitude
  37. quantity of gas:
  38. mole, Avogadro’s Number and molar mass
  39. types of vacuum pumps for evacuating volumes
  40. description of typical vacuum vessels, features and functions
  41. applications of vacuum technology in industry

Delivery Plan

2. Thermo-dynamics Sources of Energy

Energy conversion
Solar, geothermal, tidal, nuclear, fuel

 Basic Concepts
 Nature of matter: Mass and conservation of mass principle / Volume, density, specific volume, relative density
 Force, weight, pressure (atmospheric, gauge and absolute) / Temperature (Celsius and Kelvin) / Systems and black box analysis / Chemical and internal energy

 Energy
Definition: / Potential energy / Kinetic enrergy / Work (linear & rotational) / Power (linear & rotational) / Sensible heat / Latent heat / Chemical energy / Internal energy

Energy Transfer
Definition of closed system / Calorimetry / Non-flow energy equation / Definition of open system / Mass/volume flow rate / Steady flow energy equation / Enthalpy

Gases
Definition of perfect gas / General gas equation / Constant pressure/volume / Isothermal/polytropic/adiabatic processes

Heat Engines
Definition / Essentials / Energy balance / Carnot efficiency / Practical cycles / Stirling, Otto, Diesel, dual, two-stroke, Joule cycle

Heat Engine Performance
Measurement of torque and power / Heat supply rate, efficiency, specific fuel consumption / Measurement of indicated power / Morse test / Friction power, mechanical efficiency, indicated thermal efficiency / Volumetric efficiency / Energy Balance / Performance curves

3. Fluid Mechanics Basic properties of fluids
Description of a fluid and the difference between solids and fluid, liquids and gases, hydraulics and pneumatics /
Dissolved gases/particles in liquids / Foaming of liquids / Chemical properties, reaction with metals, corrosiveness, flammability toxicity / Basic properties and units - mass, volume, density, specific volume, relative density, force and weight, pressure (absolute, atmospheric and gauge), temperature (Celsius and Kelvin), viscosity, surface tension / Vapour pressure of a liquid

Fluid systems components
Pipes, channels, tubes and ducts / Valves - gate, globe, non-return/foot, needle, ball, plug cock, diaphragm, pressure regulating/reducing, safety / Filters/strainers / Gauges and instruments / Pipe fittings / Tanks/vessels / Nozzles/spray heads / Instruments / venturi and orifice meters, pitot tube, rotameter, anemometer / Pumps/compressors, motors/turbines / Actuators - linear/rotary / Selection of equipment/instruments

Fluid statics
Pressure at a point and on a surface / Pressure variation with depth in a liquid / Pascal's principle / Manometer/piezometer calculations (vertical and inclined) / Forces due to fluid pressure on vertical, horizontal and inclined surfaces / Centre of pressure / Archimedes' principle - bouyancy, flotation, apparent weight and centre of buoyancy

Fluid flow
Steady, unsteady, streamlines and eddies / Velocity - average or mean and local / Mass and volume flow rate / Conservation of mass - continuity equation for fluid flow / Modification of the continuity equation for volume flow of liquids or gases with small changes in density / Bernoulli equation for ideal fluids, meaning of pressure, velocity and potential head, total head / Causes of head loss and the Bernoulli equation

Fluid power
Work, torque and power / Force, velocity and power and torque v. angular velocity and power / Work done by a gas expanding at constant pressure / Relationship between fluid power, mass flow rate and pressure / Efficiency of a pump or turbine / Modification of the Bernoulli equation

Forces developed by flowing fluids
Impulse-momentum equation / By a jet / stationary plate - perpendicular, inclined or curved / moving plate or blade / series of moving plates or blades / power/efficiency / In pipes/ducts with changes in direction/cross-section


Relevant pages in MDME

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