Abstract:
The most commonly used refrigeration cycle is the vapor-compression refrigeration cycle. Amount of energy required to produce a cooling effect. On the other hand, the heat removed by the system to the environment to keep the principles of thermodynamics. In this study was developed a system that uses the principles of refrigeration and heat pumps in one machine (hybrid refrigeration systems). The aim of this study is to investigate the characteristics of vapor compression hybrid system using hydrocarbon refrigerants substituted for R-22. The use of hydrocarbon refrigerants mass (HCR-22) optimum for this hybrid system is 0.4 kg at 2.546 of COP. Energy saving for heating effect is 58.12% which can be used for heating or drying. The use of dummy coil for hot water in condenser is important for maintaining the thermodynamic stability of hybrid system. The average temperature difference between the heating or cooling coil to the temperature of hot or cold room is in the range 3 - 5°C. The 45 L of water in the box could be use as thermal energy storage with initial temperature 0°C at ice on the coil conditions to maintain a cold room at a temperature of 24°C along 120 minutes
