SavedAdd your journal

Journals / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi / 2016 / Cilt: 31 - Sayı: 4

Effect on the thermodynamic performance using N20 and R444R refrigerants instead of R22 in a vapor compression refrigeration system

Buhar sıkıştırmalı bir soğutma sisteminde R22 yerine N20 ve R444B soğutucu akışkanlarını kullanmanın termodinamik performansa etkisi

Atilla Gencer DEVECİOĞLU
Vedat ORUÇ
Pages
859–869
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

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

It was also determined that the exergetic efficiency of R22 was higher among the investigated refrigerants.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the energy and exergy parameters were theoretically investigated for a vapor compression refrigeration system for which N20 and L20 (R444B) refrigerants were used instead of R22.
📊
Key Findings & Data:The comparison of the energy parameters was carried out for different evaporation temperatures (-15?C, -10?C, -5?C, 0?C) and condensing temperatures (30?C, 40?C, 50?C) under the same operating conditions.
💡
Conclusion & Impact:It was also determined that the exergetic efficiency of R22 was higher among the investigated refrigerants.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, the energy and exergy parameters were theoretically investigated for a vapor compression refrigeration system for which N20 and L20 (R444B) refrigerants were used instead of R22. The comparison of the energy parameters was carried out for different evaporation temperatures (-15?C, -10?C, -5?C, 0?C) and condensing temperatures (30?C, 40?C, 50?C) under the same operating conditions. The coefficients of performance (COP) were seen to be in the same order of magnitude for three refrigerants, but the highest COP value was obtained with R22 case. It was seen that the equipments which will use N20 or R444B should have larger condenser surface areas compared to devices operating with R22. It was also determined that the exergetic efficiency of R22 was higher among the investigated refrigerants.

Özet

Bu çalışmada buhar sıkıştırmalı bir soğutma sisteminde R22 soğutucu akışkanı yerine N20 ve L20 (R444B) soğutucu akışkanının kullanılmasıyla enerji ve ekserji parametreleri teorik olarak incelenmiştir. Aynı çalışma şartları altında farklı evaporasyon sıcaklıkları (-15?C, -10?C, -5?C, 0?C) ve kondenser sıcaklıkları (30?C, 40?C, 50?C) için enerji parametrelerin mukayesesi yapılmıştır. Üç soğutucu akışkan için de performans katsayılarının (COP) aynı mertebede olduğu görülmüş ancak en yüksek COP değeri R22 durumunda elde edilmiştir. N20 veya R444B kullanacak olan cihazların, R22 ile çalışan sistemlere göre daha büyük kondenser yüzey alanlarının olması gerektiği anlaşılmıştır. İncelenen soğutucu akışkanlar içerisinde R22'nin ekserji veriminin daha yüksek olduğu tespit edilmiştir.

🔖

Cite This Article

DEVECİOĞLU, A. G., ORUÇ, V. (2022). Effect on the thermodynamic performance using N20 and R444R refrigerants instead of R22 in a vapor compression refrigeration system. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt: 31 - Sayı: 4, 859–869. https://ajindex.com/articles/523621

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (11)

  1. Llopis R., Torrella E., Cabello R. Sanchez D., HCFC- 22 replacement with drop-in and retrofit HFC refrigerants in a two-stage refrigeration plant for low temperature, Int. J. Refrig, 35, 810-816, 2012.
  2. Llopis R., Cabello R., Sánchez D., Torrella E., Patiño J. Sánchez J.G., Experimental evaluation of HCFC-22 replacement by the drop-in fluids HFC-422A and HFC- 417B for low temperature refrigeration applications, Appl. Therm. Eng., 31, 1323-1331, 2011.
  3. Yang Z., Wu X., Retrofits and options for the alternatives to HCFC-22, Energy, 59, 1-21, 2013.
  4. Aprea C., Maiorino A., Mastrullo R., Exergy analysis of a cooling system: Experimental investigation on the consequences of the retrofit of R22 with R422D, International Journal of Low-Carbon Technologies, 9, 71-79, 2014.
  5. Suzuki K., Isozumi S., Ukai T., Oozeki S., Itou T., Development of HCFC-22 Alternative Refrigerant Air Conditioners, Technical Review-Mitsubishi Heavy Industries, 35, 126-132, 1998.
  6. Devotta S., Waghmare A.V., Sawant N.N., Domkundwar B.M., Alternatives to HCFC-22 for air conditioners, Appl. Therm. Eng., 21, 703-715, 2001.
  7. Kapadia R.G., Jain S., Agarwal R.S., Transient characteristics of split air-conditioning systems using R-22 and R-410A as refrigerants, HVAC and R Research, 15, 617-649, 2009.
  8. Padmanabhan V.M.V., Palanisamy S.K., Exergy efficiency and irreversibility comparison of R22, R134a, R290 and R407C to replace R22 in an air conditioning system, J. Mech. Sci. Technol., 27, 917- 926, 2013. Padalkar,A.S, Mali K.V., Devotta S. Simulated and experimental performance of split packaged air conditioner using refrigerant HC-290 as a substitute for HCFC-22, Appl. Therm. Eng., 62, 277-284, 2014.
  9. Yana Motta S.F., Vera Becerra E., Spatz M. S., Low global warming refrigerants for commercial refrigeration systems, International Refrigeration and Air Conditioning Conference, Purdue, 2593-2598, 2012.
  10. Sethi A., Yana Motta S.F., Vera Becerra E., Spatz M. W., Low GWP refrigerants for air conditioning applications, 15th International Refrigeration and Air Conditioning Conference, Purdue, 1670, 1-7, 2014. Solstice Range of Refrigerants. http://www.honeywellrefrigerants.com/europe/?document=the-future-beginswith-solstice&download=1. 2012.
  11. DuPont, Thermodynamic properties of DuPont Freon 22 (R22) Refrigerant. "Technical Information". http://www2.dupont.com/Refrigerants/en_US/assets/do wnloads/k05736_Freon22_thermo_prop.pdf, Son erişim tarihi: 10 Nisan 2014. Calabrese D. AHRI Low global warming potential alternative