OTOMOBİL KLİMA SİSTEMİNDE R1234YF SOĞUTUCU AKIŞKANI KULLANIMININ DENEYSEL İNCELENMESİ.

In this study, the use of R1234yf refrigerant in an automobile air conditioning system was investigated experimentally. In the experimental of the study, automobile air conditioning system made up from original components has been set up in the laboratory and equipped with various mechanical and electrical instruments. The refrigeration circuit of the system consists of evaporator, condenser, liquid tank, compressor and expansion valve. The experimental automobile air conditioning system has been equipped with systems that can acquire data and control the operation of the system continually. In the experimental system, comparative tests were performed by changing the compressor speed, condenserevaporator inlet air flow temperatures. By applying energy analyse to the experimental system, various performance parameters of the system using R1234yf have been determined and presented in graphics comparatively. For system, the results show that the cooling capacity, compressor power, compressor discharge temperature and refrigerant flow rate in the refrigeration circuit increase whereas coefficient of performance (COP) decreases on rising the compressor speed and temperatures of the evaporatorcondenser air streams. [ABSTRACT FROM AUTHOR]