Journals / Politeknik Dergisi / 2015 / Cilt: 18 Sayı: 4

Experimental Investigation of Performance of R134a/R152a Refrigerant Mixture in Heat Pump

R134a/R152a Soğutucu Akışkan Karışımlarının Performanslarının Isı Pompasında Deneysel Olarak Araştırılması

Pages
251–256
Publication Date
2015-12-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results obtained in this study indicated that the coefficients of performance (COP) were improving from %5 to %23 in heating and, from %6 to %28 in cooling by the increasing rate of R152a refrigerant fluid in mixture

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, the performance of mixture R134a and R152a at different mass ratio was experimentally investigated in heat pumps.
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Key Findings & Data:Thermodynamic values of refrigerant mixtures based on the temperature and pressure values measured in experimental unit were obtained from REFPROP 7.0 software.
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Conclusion & Impact:The results obtained in this study indicated that the coefficients of performance (COP) were improving from %5 to %23 in heating and, from %6 to %28 in cooling by the increasing rate of R152a refrigerant fluid in mixture
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:R134a · R152a · karışım

Abstract

In this study, the performance of mixture R134a and R152a at different mass ratio was experimentally investigated in heat pumps. Vapour temperature, condenser pressure and ratio of mixture were considered as experiment parameters. Thermodynamic values of refrigerant mixtures based on the temperature and pressure values measured in experimental unit were obtained from REFPROP 7.0 software. The performance values were calculated using equations that are derived from the first law of thermodynamics. The results obtained in this study indicated that the coefficients of performance (COP) were improving from %5 to %23 in heating and, from %6 to %28 in cooling by the increasing rate of R152a refrigerant fluid in mixture

Özet

Bu çalışmada, kütlesel olarak farklı oranlarda R134a/R152a soğutucu akışkan karışımlarının performansları ısı pompası sisteminde deneysel olarak incelenmiştir. Deney parametreleri olarak evaparatör sıcaklığı, kondenser basıncı ve karışım oranı dikkate alınmıştır. Soğutucu akışkan karışımlarına ait termodinamik değerler, deney ünitesinde ölçülen sıcaklık ve basınç değerlerine göre REFPROP 7.0 programından alınmıştır. Performans değerleri ise termodinamiğin 1. kanunu yardımıyla tanımlanan denklemler kullanılarak hesaplanmıştır. Elde edilen sonuçlar, karışımlarda R152a soğutucu akışkan oranının artmasına bağlı olarak performans katsayılarının ısıtmada % 5 ila % 23 arasında, soğutmada ise % 6 ila % 28 arasında iyileştiğini göstermiştir.

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Cite This Article

Boran, K., Menlik, T., Alpsoy, H. (2015). Experimental Investigation of Performance of R134a/R152a Refrigerant Mixture in Heat Pump. Politeknik Dergisi, Cilt: 18 Sayı: 4, 251–256. https://ajindex.com/articles/422386

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