Theoretical Performance Analysis of an R1234yf Refrigeration Cycle Based on the Effectiveness of Internal Heat Exchanger   
Yazarlar (3)
Doç. Dr. Mehmet DİREK Yalova Üniversitesi, Türkiye
Alper Keleşoğlu
Yalova Üniversitesi, Türkiye
Ahmet Akın
Yalova Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü Ulusal alan endekslerinde (TR Dizin, ULAKBİM) yayınlanan tam makale
Dergi Adı Hittite Journal of Science and Engineering
Dergi ISSN 2149-2123
Dergi Tarandığı Indeksler TR DİZİN
Makale Dili İngilizce
Basım Tarihi 01-2017
Cilt No 4
Sayı 1
Sayfalar 23 / 30
DOI Numarası 10.17350/HJSE19030000044
Makale Linki http://www.hjse.hitit.edu.tr/hjse/index.php/HJSE/article/view/HJSE19030000044
Özet
In this paper, the effects of internal heat exchanger (IHX) effectiveness on the performance parameters of the refrigeration cycle with R1234yf were theoretically investigated. For this purpose, a mathematical model was developed based on the energy balance of the cycle. The analysis were performed between -20°C and 0°C evaporation and 40°C and 50°C condensation temperatures based on the effectiveness value of IHX. The cooling capacity, coefficient of performance (COP), subcooling, superheat and compressor discharge temperature of the refrigeration cycle was examined. Finally, the performance results of the cycle with R1234yf were compared with the baseline cycle that utilizes with R134a. As a result, it was determined that the critical effectiveness to supply the same COP with R1234yf was determined 50% in comparison the baseline cycle.
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