Indoor temperature control and energy saving potential of split unit air conditioning system using fuzzy logic controller

Abstract

Variable speed compressor offers a wider range of cooling capacity control according to the cooling load of the system. The on/off controller consumes larger energy as the compressor is always working at maximum speed despites the cooling load and continuously on and off to prevent from over cool the room. This study focused on the implementation of variable speed compressor to increase energy efficiency with better temperature control inside the room for split unit air conditioning system. The experiments are done at room temperature of 23 and 24°C with internal heat load of 500 and 1000 W. Monitoring system is applied to monitor the room temperature, energy consumption, energy saving and coefficient of performance. The proposed system indicates as much 37% of energy saving as compared to on/off controller.