Energy efficient air-conditioning and air distribution system for improved indoor air quality

The quality of air in the indoor environment is dependent on the nature and source of indoorpollutants and the performance of the ventilation system. Increased dilution in a tropical contextimplies a high energy penalty. This paper presents a novel method of addressing IAQ and energyissues. An innovative energy efficient method and means of air-conditioning for an independentcontrol of temperature and humidity of two different air streams has been developed. The SingleCoil Twin Fan (SCTF) air handling unit is further developed to incorporate a new method of airdistribution for an independent control of ventilation air quantity at acceptable indoortemperature and humidity conditions. Recent findings from a prototype SCTF air handling unitand SCTF system are encouraging and significant energy savings are possible.