Temperatur Sistem Residential Air Conditioning Hibrida Pada Proses Charging Dan Discharging Dengan Thermal Energy Storage

Abstract

The use of thermal energy storage (TES) in the hybrids residential air conditioning (RAC) can provide energy saving of electricity consumption for air conditioning and water heater. The condenser side is cooled with water at TES as a water heater (Hot TES/HTES) and the absorption of heat in the evaporator is carried out by brine (a liquid with a freezing point below the freezing point of water 0°C) are still in liquid phase at TES temperature as a coolant brine (Cold TES/CTES). In this research, the process of charging mode and the discharging mode were done on two conditions. In the condition 1 of charging mode, the charging process is done for 220 minutes to cool the brine in the ice storage, ice storage obtained the lowest temperature -1.4°C, while in condition 2 of charging mode for 240 minutes, ice storage obtained the lowest temperature of -2.4°C. The average of hot water temperature is 57.82° C with temperature of drying chamber is 45.56°C for condition 1 of charging mode, while for condition 2 of charging mode, the average of hot water temperature is 46.43°C with temperature of the drying chamber is 42.29°C. Discharging mode on condition 2 provide cooling process for 270 minutes, while discharging mode on condition 1 provide cooling process only for 120 minutes.