UNJUK KERJA SISTEM AIR-COOLED CHILLER DENGAN EVAPORATOR JENIS SPIRAL MENGGUNAKAN REFRIGERAN HCR-22

Abstract

Synthetic Refrigerant has the caracteristic, that are nature of odourless, easy to get in everywhere and nontoxic so the price is cheap. The Domination of Refrigerant Synthetic has known about property of character that environmental will damage especially compound CFC inside, like R-12 and R-13. Finally, this Continuity Awareness will be uninterrupted environmental that making the refrigerant hydrocarbon return used. Refrigerant Hydrocarbon hasn’t characteristic destroy the environment, but have some weakness that is flammable in character, nevertheless with the technological growth this matter can be overcome. One of the solution to take care of the security of system refrigeration that using refrigerant hydrocarbon is by making refrigerant not in direct corollation with the room which it’s condition of. Refrigerant used to make cool the water (secondary refrigerant) until getting the certain temperature, and then the secondary refrigerant poured into coils cooler residing in the room (fan coil unit). Result from used refrigerant hydrocarbon type 22 (HCR 22) is the COP which having tendency go up because of increasing the temperature go out the evaporator (T1). Where it’s temperature go out the evaporator (T1) - 5oC and 10oC, every COP were equal to 3,22 and 3,98. So increasing COP from temperature go out the evaporator (T1) - 5oC becoming 10oC it’s about 23,6 %. Those data is taken from value of condensor temperature 29oC ..