Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System
Yıl: 2020 Cilt: 7 Sayı: 3 Sayfa Aralığı: 1440 - 1449 Metin Dili: İngilizce DOI: 10.31202/ecjse.734445 İndeks Tarihi: 07-01-2021
Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System
Öz: The use of heat pumps is increasing day by day. So, various refrigerants have been used in the heatpump systems so far. Therefore many studies and arrangements have been made to reduce the environmentaleffects of refrigerants. The refrigerant mixtures that obtaining from the hydrofluorocarbons (HFCs) and thehydrofluoroolefins (HFOs) are started to be used to reduce of global warming potential of the HFCs and removeflammability of the HFOs in these days. In this study, the performance of the R134a/R1234yf (HFC/HFO)mixture in the heat pump was theoretically investigated for different R1234yf mass fractions (from 0.0 to 1.0).The analysis of R134a/R1234yf mixture for different R1234yf mass fraction has made for three differentevaporator temperatures (-10 oC, -5 oC and 0 oC) and a constant condenser temperature (35 oC). When theR1234yf mass fraction increases from 0.0 to 1.0 the COP value decreases by 2.44% (at the -5 oC evaporatortemperature). The R1234yf mass fraction must be 0.9 for the R134a/R1234yf mixture to have a lower GWP than150. Because R134a has high GWP.
Anahtar Kelime: Bir Isı Pompası Sisteminde Soğutucu Olarak Kullanılan HFC-R134a / HFO-1234yf İkili Karışımların Performansının Değerlendirilmesi
Öz: Isı pompalarının kullanımı gün geçtikçe artmaktadır. Bu nedenle, şimdiye kadar ısı pompası sistemlerinde çeşitli soğutucu akışkanlar kullanılmıştır. Bu yüzden, soğutucu akışkanların çevresel etkilerini azaltmak için birçok çalışma ve düzenleme yapılmıştır. Hidroflorokarbonlardan (HFC) ve hidrofloroolefinlerden (HFO) elde edilen soğutucu akışkan karışımları, HFC’larin küresel ısınma potansiyelini azaltmak ve HFO’lerin yanıcılığını gidermek için bu günlerde kullanılmaya başlanmıştır. Bu çalışmada, bir ısı pompasında R134a/R1234yf (HFC / HFO) karışımının performansı teorik olarak farklı R1234yf kütle karışım oranı (0.0 - 1.0) için araştırılmıştır. Farklı R1234yf kütle karışım oranı için R134a / R1234yf karışımının analizi, üç farklı evaporatör sıcaklığı (-10 oC, -5 oC ve 0 oC) ve sabit bir kondenser sıcaklığı (35 oC) için yapılmıştır. R1234yf kütle karışım oranı 0.0’dan 1.0'e yükseldiğinde, COP değeri % 2.44 azalmaktadır (-5 oC evaporatör sıcaklığında). R134a / R1234yf karışımının 150’den düşük GWP oranına sahip olması için R1234yf kütle karışım oranı 0.9 olmalıdır. Çünkü R134a yüksek GWP oranına sahiptir.
Anahtar Kelime: Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA | YILDIRIM R, YILDIZ A (2020). Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. , 1440 - 1449. 10.31202/ecjse.734445 |
Chicago | YILDIRIM Ragıp,YILDIZ Abdullah Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. (2020): 1440 - 1449. 10.31202/ecjse.734445 |
MLA | YILDIRIM Ragıp,YILDIZ Abdullah Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. , 2020, ss.1440 - 1449. 10.31202/ecjse.734445 |
AMA | YILDIRIM R,YILDIZ A Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. . 2020; 1440 - 1449. 10.31202/ecjse.734445 |
Vancouver | YILDIRIM R,YILDIZ A Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. . 2020; 1440 - 1449. 10.31202/ecjse.734445 |
IEEE | YILDIRIM R,YILDIZ A "Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System." , ss.1440 - 1449, 2020. 10.31202/ecjse.734445 |
ISNAD | YILDIRIM, Ragıp - YILDIZ, Abdullah. "Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System". (2020), 1440-1449. https://doi.org/10.31202/ecjse.734445 |
APA | YILDIRIM R, YILDIZ A (2020). Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. El-Cezerî Journal of Science and Engineering, 7(3), 1440 - 1449. 10.31202/ecjse.734445 |
Chicago | YILDIRIM Ragıp,YILDIZ Abdullah Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. El-Cezerî Journal of Science and Engineering 7, no.3 (2020): 1440 - 1449. 10.31202/ecjse.734445 |
MLA | YILDIRIM Ragıp,YILDIZ Abdullah Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. El-Cezerî Journal of Science and Engineering, vol.7, no.3, 2020, ss.1440 - 1449. 10.31202/ecjse.734445 |
AMA | YILDIRIM R,YILDIZ A Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. El-Cezerî Journal of Science and Engineering. 2020; 7(3): 1440 - 1449. 10.31202/ecjse.734445 |
Vancouver | YILDIRIM R,YILDIZ A Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System. El-Cezerî Journal of Science and Engineering. 2020; 7(3): 1440 - 1449. 10.31202/ecjse.734445 |
IEEE | YILDIRIM R,YILDIZ A "Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System." El-Cezerî Journal of Science and Engineering, 7, ss.1440 - 1449, 2020. 10.31202/ecjse.734445 |
ISNAD | YILDIRIM, Ragıp - YILDIZ, Abdullah. "Evaluation of Performance of HFC-R134a/HFO-1234yf Binary Mixtures Used as Refrigerant in a Heat Pump System". El-Cezerî Journal of Science and Engineering 7/3 (2020), 1440-1449. https://doi.org/10.31202/ecjse.734445 |