Refrigeration and Air-Conditioning

At the end of this course, the students should be able to: 1. discuss various refrigeration cycles and the working principles of their sub-systems such as compressors, evaporators, condensers, etc.; 2. explain the working principles of Brine system, refrigerated cargo holds, thermal insulators and their instrumentation; 3. state the design requirements for onboard systems such as heating, humidification, ventilation and air-conditioning systems; and 4. design, analyse and optimise the performance of ship borne air-conditioning system.

Refrigeration cycles and media. Systems, compressors, evaporators, condensers, receivers and expansion valves. Brine system. Cold stores, refrigerated cargo holds and freezers. Design methods. Thermal insulation. Instrumentation. Heating systems. Humidification. Ventilation of crew accommodation, cargo holds, engine and boiler rooms. Distribution and circulation of air and air-conditioning systems. Types: Analysis using psychometric chart. Air distribution layouts. Air-conditioning design. Maintenance procedure.