MECH ENG 4107 - Air conditioning

North Terrace Campus - Semester 2 - 2024

This course is a practical introduction to design of air conditioning systems. It looks at such aspects of design as vapour compression cycles; heat transfer in two-phase flow; types, selection and operation of refrigeration plant; psychrometrics; climatic data and its use; load estimation and analysis; constant and variable air volume systems; human comfort and health; cooling and dehumidifying coils; controls; fans and duct systems; system balancing and stimulation; energy efficiency in buildings.

  • General Course Information
    Course Details
    Course Code MECH ENG 4107
    Course Air conditioning
    Coordinating Unit Mechanical Engineering
    Term Semester 2
    Level Undergraduate
    Location/s North Terrace Campus
    Units 3
    Contact Up to 4.5 hours per week
    Available for Study Abroad and Exchange Y
    Assumed Knowledge MECH ENG 3020 OR MECH ENG 3102
    Course Description This course is a practical introduction to design of air conditioning systems. It looks at such aspects of design as vapour compression cycles; heat transfer in two-phase flow; types, selection and operation of refrigeration plant; psychrometrics; climatic data and its use; load estimation and analysis; constant and variable air volume systems; human comfort and health; cooling and dehumidifying coils; controls; fans and duct systems; system balancing and stimulation; energy efficiency in buildings.
    Course Staff

    Course Coordinator: Mr Eyad Hassan

    Course Timetable

    The full timetable of all activities for this course can be accessed from Course Planner.

  • Learning Outcomes
    Course Learning Outcomes
    On successful completion of this course students will be able to:

     
    1 Explain the principles of air conditioning design, and consideration that influence the design including human comfort, weather and environmental parameters and building structure;
    2 Demonstrate basic design skills to be able to estimate life-cycle costing and choose the right type of system;
    3 Explain load estimation and analysis, psychometric analysis of a system and climate data and its use;
    4 Discuss plant design, choosing plant components and understanding their characteristics and operating modes;
    5 Discuss computational methods used in air conditioning design;
    6 Demonstrate analytical cognitive skills and improve problem solving skills in air conditioning;
    7 Operate effectively to work in a team; and
    8 Write a technical report.

     
    The above course learning outcomes are aligned with the Engineers Australia Entry to Practice Competency Standard for the Professional Engineer. The course develops the following EA Elements of Competency to levels of introductory (A), intermediate (B), advanced (C):  
     
    1.11.21.31.41.51.62.12.22.32.43.13.23.33.43.53.6
    C C C B C B C C C C B C C C C C
    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)

    Attribute 1: Deep discipline knowledge and intellectual breadth

    Graduates have comprehensive knowledge and understanding of their subject area, the ability to engage with different traditions of thought, and the ability to apply their knowledge in practice including in multi-disciplinary or multi-professional contexts.

    1-6, 8

    Attribute 2: Creative and critical thinking, and problem solving

    Graduates are effective problems-solvers, able to apply critical, creative and evidence-based thinking to conceive innovative responses to future challenges.

    1-6, 8

    Attribute 3: Teamwork and communication skills

    Graduates convey ideas and information effectively to a range of audiences for a variety of purposes and contribute in a positive and collaborative manner to achieving common goals.

    6-8

    Attribute 4: Professionalism and leadership readiness

    Graduates engage in professional behaviour and have the potential to be entrepreneurial and take leadership roles in their chosen occupations or careers and communities.

    7

    Attribute 5: Intercultural and ethical competency

    Graduates are responsible and effective global citizens whose personal values and practices are consistent with their roles as responsible members of society.

    7

    Attribute 8: Self-awareness and emotional intelligence

    Graduates are self-aware and reflective; they are flexible and resilient and have the capacity to accept and give constructive feedback; they act with integrity and take responsibility for their actions.

    7
  • Learning Resources
    Required Resources

    Air Conditioning Lecture Notes and other resources are provided electronically though myuni.

    Recommended Resources

    Text books

    • McQuinston, F. C., Parker, J. D., Spilter, J. D., Heating, Ventilation and Air Conditioning, Analysis and Design, 5th Edition, USA, John Wiley & Sons Inc, 2000
    • C P Arora, C. P., Refrigeration and Air Conditioning, 2nd Edition, Tata McGraw-Hill Publishing Company, New Delhi, 2000;
    • Stoecker, W. F., Jones, J. W., Refrigeration and Air Conditioning, 2nd Edition, McGraw Hill, 1982;
    • ASHRAE (American Society of Heating, Refrigeration and Air Conditioning) Handbooks: Fundamentals, Refrigeration, HVAC Systems & Equipment, HVAC Applications;
    • Howell, R. H., Sauer, H. J. (Jr), Coad, W. J., Principles of Heating Ventilating and Air Conditioning, USA: ASHRAE, 1998;
    • Kimura, K. I., Scientific Basis of Air Conditioning, Applied Science Publishers, London, 1977;
    • Wang, S. K., Handbook of Air Conditioning and Refrigeration, McGraw Hill, New York, 1993.
    Online Learning

    The material available through MyUni:

    • Course Outline and Introduction
    • Course Content
    • Timetable
    • Lecture Notes
    • Assignments
    • Tutorials
    • Solutions
    • Past exams
    • Practical Notes

    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 online quizzes, problem-solving analytical tutorials, problem-solving computer based workshops and assignments involving professional software, and a practical involving collecting and analysing airconditioning data.

    Workload

    The information below is provided as a guide to assist students in engaging appropriately with the course requirements.

    Course workload includes 40 hours lectures and tutorials, and 3 hours laboratory

    Learning Activities Summary

    This course consists of combination of lectures and tutorials:

    Introduction to Air-conditioning Systems – 2 hrs
    • definitions
    • complete systems
    • a/c and distribution systems
    • all-air systems
    • air-and-water systems
    • induction systems
    • all-water systems
    • unitary air conditioners
    • heat pumps
    • heat recovery systems
    • thermal storage

    Psychrometrics – 6 hrs
    • psychrometric chart
    • basic processes

    Design Conditions – 4 hrs
    • physiological principles
    • design conditions

    Solar Heat Gain – 2 hrs
    • properties
    • polar angles
    • heat gain through fenestration
    • shading devices

    Heating Load Calculations – 2 hrs
    • heat losses
    • general procedure
    • selecting heating design conditions

    Cooling Load Calculations – 4 hrs
    • heat flow rates
    • heat balance fundamentals
    • initial design considerations
    • heat gain calculation concepts
    • heat sources in conditioned spaces

    Energy Estimating Methods – 2 hrs
    • energy estimating methods
    • overall modelling strategies
    • integration of system models
    • degree-day methods

    Compressors, Expansion Devices and Refrigerants – 3 hrs
    • reciprocating compressors
    • rotary screw compressors
    • vane compressors
    • centrifugal compressors
    • expansion devices
    • Refrigerants

    Condensers and Evaporators – 4 hrs
    • terminology
    • cooling and dehumidifying coils
    • condensers and evaporators
    • cooling towers

    Funs, Ducts, Pumps and Piping – 6 hrs
    • funs – characteristics, performance, selection and installation
    • ducts – pressure drop, design and optimization
    • pumps
    • piping – water and refrigerant

    Air-conditioning software – 5 hrs
    • computer training
    Specific Course Requirements

    Practical: This course includes practical involving working in a team collecting and analysing airconditioning data.

    Approximate duration: 3 hrs

  • Assessment

    The University's policy on Assessment for Coursework Programs is based on the following four principles:

    1. Assessment must encourage and reinforce learning.
    2. Assessment must enable robust and fair judgements about student performance.
    3. Assessment practices must be fair and equitable to students and give them the opportunity to demonstrate what they have learned.
    4. Assessment must maintain academic standards.

    Assessment Summary
    Assessment Task Weighting (%) Individual/ Group Formative/ Summative
    Due (week)*
    Hurdle criteria Learning outcomes
    Assignments 20 Individual Summative Weeks 2-12 1. 2. 3. 4. 5. 8.
    Practical 10 Individual Summative Weeks 2-12 Min 50% 1. 6. 7. 8.
    Online Quizzes 5 Individual Summative Weeks 2-12 1. 2. 3. 4. 5.
    Final exam 65 Individual Summative Exam Period      1. 2. 3. 4. 6.
    Total 100
    * The specific due date for each assessment task will be available on MyUni.
     
    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.
    The Hurdles are: 
      * Minimum Practical Grade of 50%
      * Minimum exam grade of 40%

    Assessment Related Requirements

    The Practical is compulsory part of a course. If a practical session is missed or a lab report not handed in or a student fails to get at least 35% of the total possible lab mark, then that is grounds for FAILURE of the entire course.

    Assessment Detail

    Assignments – individual, distributed through a semester two weeks prior to a submission date

    Practical – assessment based on practical participation and a report

    Online Quizzes - short online quizzes to reinforce recent leture material

    Final exam – open-book, 3 hours.

    Submission

    Assignments and practical reports should be submitted via corresponding link on myuni. A penalty for late submission will be applied – 10% per day. In special cases extensions 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.

    Course Grading

    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.

  • Student Feedback

    The University places a high priority on approaches to learning and teaching that enhance the student experience. Feedback is sought from students in a variety of ways including on-going engagement with staff, the use of online discussion boards and the use of Student Experience of Learning and Teaching (SELT) surveys as well as GOS surveys and Program reviews.

    SELTs are an important source of information to inform individual teaching practice, decisions about teaching duties, and course and program curriculum design. They enable the University to assess how effectively its learning environments and teaching practices facilitate student engagement and learning outcomes. Under the current SELT Policy (http://www.adelaide.edu.au/policies/101/) course SELTs are mandated and must be conducted at the conclusion of each term/semester/trimester for every course offering. Feedback on issues raised through course SELT surveys is made available to enrolled students through various resources (e.g. MyUni). In addition aggregated course SELT data is available.

  • Student Support
  • Policies & Guidelines
  • Fraud Awareness

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