GWP Değeri Düşük Soğutucu Akışkanların Kullanıldığı Kaskad Soğutma Sisteminin Karşılaştırmalı Performans Analizi

Abstract

Bazı endüstriyel soğutma uygulamaları için düşük sıcaklıklara ihtiyaç duyulur. Tek kademeli soğutma sistemleri ile bu sıcaklığı elde etmek oldukça zor ve ekonomik açıdan avantajlı değildir. Bu nedenle daha düşük sıcaklıkta soğutma uygulamalarında kaskad soğutma sistemleri tercih edilir.

 

Bu çalışmada, yeni nesil soğutucu akışkan çiftlerinin kullanıldığı kaskad soğutma sisteminin performans analizi yapılmıştır. Kaskad sisteminde ozon delme potansiyeli (ODP) sıfır olan ve küresel ısınma potansiyeli (GWP) değeri düşük R454C/ R1234ze, R454C/ R1234yf, R454C/R717, R744/R290 ve R744/R717 soğutucu akışkan çiftleri kullanılmıştır. Yapılan analizler sonucunda en yüksek COP değerlerine R454C/R717 akışkan çifti kullanıldığında ulaşılmıştır.

Keywords

• Kaskad soğutma sistem,; Düşük GWP soğutkanlar,Performans katsayısı

Comparative Performance Analysis of Cascade Refrigeration System Using Low GWP Refrigerants

Abstract

Some industrial cooling applications require low temperatures. With single stage refrigeration systems, it is difficult to obtain this temperature and is not economically advantageous. Therefore, cascade refrigeration systems are preferred for lower temperature cooling applications. In this study, the performance analysis of the cascade refrigeration system using the new generation of refrigerant pairs was performed. In the cascade system, GWP R454C/ R1234ze, R454C/ R1234yf, R454C/R717, R744/R290 ve R744/R717 refrigerant pairs were used. As a result of analyzes, the highest COP values were reached when the R454C/R717 fluid pair was used. 

Keywords

• Cascade refrigeration system; Low GWP refrigerants; Coefficient of Performance

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