MEC4417 - Refrigeration and air conditioning - 2017

6 points, SCA Band 2, 0.125 EFTSL

Undergraduate - Unit

Refer to the specific census and withdrawal dates for the semester(s) in which this unit is offered.



Organisational Unit

Department of Mechanical and Aerospace Engineering


Dr Foo Ji Jinn

Unit guides



  • First semester 2017 (Day)


Review of mass and energy conservation and transfer processes; psychrometry and moist air properties; factors influencing human comfort; calculation of building thermal loads; simulation packages for calculating building loads; air conditioning systems; fans, pumps, ducts, etc in air conditioning plant; control systems in air conditioning plant; vapour compression and absorption refrigeration; air conditioning and refrigeration in transportation; industrial fieldwork.


On successful completion of this unit, students should be able to:

  1. Calculate the air condition after undergoing the various psychrometric processes such as heating, cooling, humidification, dehumidification, reheat, preheat and mixing, and size ducts and pipes
  2. Determine human comfort level in an air conditioned space and estimate thermal heat loads on buildings
  3. Calculate thermal performances of various types of air conditioning and refrigerating systems
  4. Evaluate various types of air conditioning systems used in industry and determine the optimal choice for a particular situation
  5. Design a complete air conditioning system and structure and present a design report
  6. Work effectively in groups to carry out lab experiment.


Examination (3 hours): 45% + Laboratory/field work: 35% + Projects: 20%

Students are required to achieve at least 45% in the total continuous assessment component and at least 45% in the final examination component and an overall mark of 50% to achieve a pass grade in the unit. Students failing to achieve this requirement will be given a maximum of 45% in the unit.

Workload requirements

3 hours lectures, 2 hours laboratory or practice classes and 7 hours of private study per week

See also Unit timetable information

Chief examiner(s)