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Dergiler / Journal of the Turkish Chemical Society Section B: Chemical Engineering / 2019 / Volume: 2 Issue: 2

COMPARATIVE ANALYSIS OF CASCADE REFRIGERATION SYSTEMS’ PERFORMANCE and ENVIROMENTAL IMPACTS

Ebru Mancuhan(Marmara University, Faculty of Engineering , Chemical Engineering Department)0000-0002-7108-4497
Barış Tunç(MARMARA UNIVERSITY, FACULTY OF ENGINEERING)0000-0003-1420-287X
Kübra Yetkin(MARMARA UNIVERSITY, FACULTY OF ENGINEERING)0000-0002-9730-8567
Cem Çelik(MARMARA UNIVERSITY, FACULTY OF ENGINEERING)0000-0001-7513-5987
Sayfa
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Yayın Tarihi
2019-11-15
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Moreover, the COP max and total equivalent warming impact (TEWI) values of the system’s refrigerant pairs are evaluated and compared for various operating conditions .

📌 3 Maddede Bu Makale

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Amaç & Hipotez:The aim of our study is to propose a theoretical model to analyze the energy efficient and environment friendly cascade system for various refrigerant pairs.
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Temel Bulgular & Veri:In order to realize, the optimum cascade evaporation temperature (T OPT,CAS,E ) which maximize the performance , COP values are determined for different refrigerant pairs of the system.
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Sonuç & Katkı:Moreover, the COP max and total equivalent warming impact (TEWI) values of the system’s refrigerant pairs are evaluated and compared for various operating conditions .
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Cascade system · Optimization · TEWI

Abstract

The aim of our study is to propose a theoretical model to analyze the energy efficient and environment friendly cascade system for various refrigerant pairs. In order to realize, the optimum cascade evaporation temperature (T OPT,CAS,E ) which maximize the performance , COP values are determined for different refrigerant pairs of the system. After the optimization, two different cases have been investigated through a thermodynamic analysis to discover the best refrigerant pair for the system. Natural refrigerant CO 2 is selected instead of R404A which has high Global Warming Potential (GWP) value for the low temperature cycle (LTC). On the other hand, synthetic refrigerants (R134a, R152a) and a natural refrigerant (NH 3 ) are chosen for the high temperature cycle (HTC). In order to determine, an energy efficient and environmentally friendly cascade system, R134a/CO 2 , R152a/CO 2 and NH 3 /CO 2 refrigerant pairs are investigated in Case 1. On the other hand , R134a/R404A, R152a/R404A and NH 3 /R404A refrigerant pairs are investigated in Case 2. In calculations, the evaporation temperature (T E ) is varied from -20 o C to -40 o C in LTC. The condensation temperature (T C ) is considered to be between 30 o C and 45 o C in HTC. Mass flow rate requirements of systems for various refrigeration capacities (Q Evap ) are calculated for different refrigerant pairs. Moreover, the COP max and total equivalent warming impact (TEWI) values of the system’s refrigerant pairs are evaluated and compared for various operating conditions .

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Bu Makaleye Atıf Yap

Mancuhan, E., Tunç, B., Yetkin, K., Çelik, C. (2019). COMPARATIVE ANALYSIS OF CASCADE REFRIGERATION SYSTEMS’ PERFORMANCE and ENVIROMENTAL IMPACTS. Journal of the Turkish Chemical Society Section B: Chemical Engineering, Volume: 2 Issue: 2. https://ajindex.com/articles/1426195

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Kaynakça (15)

  1. Llopis, R., Torrella, E., Cabello, R., and Sanchez, D., Performance evaluation of R404A and R507A refrigerant mixtures in an experimental double-stage vapour compression plant,” Appl. Energy, 87(5), 2010, 1546-1553.
  2. Kilicarslan A., Hosoz M., Energy and irreversibility analysis of a cascade refrigeration system for various refrigerant couples. Energ. Convers. Manage., 51, 2010, 2947-2954.
  3. Cabello R., Sanchez D., Llopis R., Catalan J., Nebot-Andres L., Torella E., Energy evaluation of R152a as drop in replacement for R134a in cascade refrigeration plants, Appl. Therm. Eng, 110, 2017, 972-974.
  4. Oruc V., Devecioglu A.G., Ender S., Improvement of energy parameters using R442A and R453A in a refirigeration system operating with R404A, Appl. Therm. Eng, 129, 2018, 243-249.
  5. Baakeem S.S., Orfi J., Alabdulkarem A., Optimization of a multistage vapor-compression refrigeration system for various refrigerants, Appl. Therm. Eng, 136, 2018, 84-96.
  6. Vaghela J.K., Comparative evaluation of an automobile air-conditioning system using R134a and its alternative refrigerants, Energy Procedia, 109, 2017, 153-160.
  7. Karampour, M., Sawalla, S., State-of-the-art integrated CO2 refrigeration system for supermarkets: A comparative analysis, Int. J. Refrig., 86, 2018, 239-257.1148.
  8. Cengel, Y.A., Boles, M.A., Thermodynamics: An engineering Approach, McGraw-Hill, Singapore, 2007.
  9. Pearson, A., Carbon dioxide e new uses for an old refrigerant. Int. J. Refrig., 28, 2005, 1140-1148.
  10. IPCC. Climate Change 2013: The Physical Science Basis, Cambridge University Press, Cambridge, United Kingdom and New York, USA, 2013.
  11. AIRAH, Methods of Calculating Total Equivalent Warming Impact (TEWI) 2012, Best Practice Guidelines. The Australian Institute of Refrigeration, Air Conditioning and Heating.
  12. EES., 2017, Engineering Equation Solver, Academic Commercial, V10.326, fChart Software Inc.
  13. Sınar, U., Numerical analysis of a cascade refrigeration system operating at ultra-low temperatures, Marmara University, Master Thesis, 2018.
  14. Horton, W.T., Modelling of secondary loop refrigeration systems in supermarket applications, Purdue University, PhD thesis, 2002.
  15. Llopis, R., Torrella, E., Cabello, R., and Sanchez, D., Performance evaluation of R404A and R507A refrigerant mixtures in an experimental double-stage vapour compression plant,” Appl. Energy, 87(5), 2010, 1546-1553.