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| Sub-theme 2:� Indoor Thermal Environment (ITE) | ||||||||||
| Indoor Thermal Environment research is concerned with the use of ventilation and air-conditioning means to control the temperature and humidity of indoor air at levels which produce comfort feeling in occupants.� This can be done by active or passive means.��� Active system uses mechanical or electrical energy to drive the system, while passive system does not required this form of energy.�� Passive system takes advantage of natural energy flows from wind or solar energy to maintain thermal comfort in indoors.� The use of passive system reduces or eliminates cooling bills and reduces greenhouse gas emissions from cooling by electricity-driven air-conditioning systems; and thus very attractive to countries of less developed economies and blessed with abundant supply of solar energy. | ||||||||||
| Studies in this area aim to: | ||||||||||
| develop and �promote� passive cooling designs for �homes and offices in warm-humid climates, --such as design of building envelop, �that maximizes cooling by air movement and minimizes heat gain from solar and outdoors, which for example, �includes shading by awning, use of insulation and vents in ceilings, reflective surfaces, double skin roof, roof spray cooling, etc., | ||||||||||
| develop natural ventilation system , such as, wind-driven cross ventilation systems,� wind tower,� roof vents, etc.. | ||||||||||