UNJUK KERJA SISTEM AIR-COOLED CHILLER DAN KOMPRESOR TORAK HERMETIK DENGAN MENGGUNAKAN REFRIGERAN R-134a

Abstract

Air conditioning is the greater part used for its comfort, which is to generate comfortable air condition for people in an area. Chiller used for high cooling load, so that required not too much refrigerant and changing with water to cooled the room In this research is used refrigerant R-134a as a secondary refrigerant on an evaporator to chill water. Being chilly, the water is then pumped into the coil - the Fan Coil Unit ( FCU ) coil – so as to cool down the temperature of an area. This work varies evaporator output temperature and maintains condenser temperature constant. These treatments aim at discovering a compressor’s working signal and coefficient of performance (COP) of a refrigerant vapour compression system on an air-cooled chiller testing device by employing the refrigerant R-134a. According to the research, it can be explained that the high capacity on temperature of condensation 27oC, the high capacity of compressor on condensation temperature 31oC and the high capacity of coefficient of performance on condensation temperature 27oC. Therefore, with knowing the characteristic of hermetic compressor, it can make easily the designer to design the air-conditioning system.