Energy, environmental and enviroeconomic analysis of the use R134a/R1234yf (10/90) as replace to R134a in a vapor compression cooling system

Authors : Ragıp YILDIRIM, Abdullah YILDIZ

Pages : 101-106

Doi:10.31593/ijeat.769962

View : 34 | Download : 11

Publication Date : 2020-12-31

Article Type : Research Paper

Abstract :In this study, the use of R134a and R134a/R1234yf insert ignore into journalissuearticles values(10/90); refrigerants in a cooling system have been investigated theoretically. The energy, environmental and enviroeconomic analyzes of refrigerants have been performed for a cooling system. The energy performances of refrigerants have been made for different evaporator insert ignore into journalissuearticles values(between -10 oC and 5 oC); temperatures and a constant condenser insert ignore into journalissuearticles values(35 oC); temperature. The R134a/R1234yf insert ignore into journalissuearticles values(10/90); has a higher mass flow rate insert ignore into journalissuearticles values(26.50%); than R134a. Because R134a/R1234yf insert ignore into journalissuearticles values(10/90); has a lower refrigerating effect insert ignore into journalissuearticles values(evaporator enthalpy difference); than R134a. The R134a/R1234yf insert ignore into journalissuearticles values(10/90); has slightly higher compressor energy consumption insert ignore into journalissuearticles values(nearly 2.94%); than R134a, and so the COP of R134a has slightly insert ignore into journalissuearticles values(nearly 2.85%); higher than R134a/R1234yf insert ignore into journalissuearticles values(10/90);. When compared to R134a, it is seen that the R134a/R1234yf insert ignore into journalissuearticles values(10/90); significantly reduces discharge temperature insert ignore into journalissuearticles values(about 16%);. The environmental and enviroeconomic result values of R134a/R1234yf insert ignore into journalissuearticles values(10/90); are slightly higher than R134a. However, even the slight differences are significant to the evaluation of the environmental impact of refrigerants. It is seen that the wind energy source has the lowest environmental and enviroeconomic value and so the wind energy is the best environmentally friendly energy source according to the other energy sources.
Keywords : Energy, Environmental, Enviroeconomic, Global Warming, R134a R1234yf mixture

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