Thermodynamic analysis of two dual-purpose compression refrigeration systems with eco-friendly refrigerants in different climates
Subject Areas : Journal of New Applied and Computational Findings in Mechanical Systems
Alireza Zarabadi
1
(
Imam Khomeini International University
)
Mostafa Mafi
2
(
1Department of Mechanical Engineering, Imam Khomeini International University
)
Keywords: annual refrigeration system, dual-purpose refrigeration system, eco-friendly refrigerant,
Abstract :
In this study, two types of dual-purpose compression refrigeration systems including single-compressor and dual-compressor (cascade) with different eco-friendly refrigerants to achieve two temperature ranges above zero and below zero have been investigated. The purpose of this study is to investigate the annual energy consumption of dual-purpose refrigeration systems with eco-friendly refrigerants and also to investigate the parameters affecting the efficiency of these systems. Studies have shown that the cascade system has a higher efficiency than single-compressor system and the best refrigerant in terms of performance in this system is R290. It was also found that in the single-compressor system only R134a refrigerant is applicable and the other refrigerants in the evaporator create pressure under atmospheric pressure. Also, this system is only applicable in hot and humid climates for all seasons of the year, while the cascade system is applicable in all seasons of the year and in all climates. Comparison of these two systems shows that assuming the total load capacity of the refrigerator is constant, increasing the cooling load in the low temperature range leads to increased energy consumption of the cascade system. Also founded that the annual energy consumption of cascade system is 7% lower than single compressor in the case of equal distribution of cooling load between two temperature ranges.
1. Lloret Font, E. (2017). Analysis and optimization of energy usage in Supermarkets (Master's thesis, Universitat Politècnica de Catalunya).
2. Arias, J. (2005). Energy usage in supermarkets-modelling and field measurements (Doctoral dissertation, KTH).
3. Dincer, I., Kanoglu, M. (2010). Refrigeration systems and applications, Vol. 2, New York: Wiley.
4. Dakkama, H. J., Elsayed, A., Al-Dadah, R. K., Mahmoud, S. M., Youssef, P., (2015), Investigation of CascadingAdsorption Refrigeration System with Integrated Evaporator-Condenser Heat Exchanger Using Different Working,Pairs, 75, pp 1469-1501.
5. Dubey, A. M., Kumar, S., Das Agrawal, G., (2014), Thermodynamic analysis of a transcritical CO2/propylene (R744-R1270) cascade system for cooling and heating applications, Energy Convers. Manag., 86, pp 774-783 .
6. Jain, V., Kachhwaha, S. S., Sachdeva, G., (2013), Thermodynamic performance analysis of a vapor compression-absorption cascaded refrigeration system, Energy Convers. Manag., 75, pp 685-700.
7. Ally, M. R., Sharma, V., Nawaz, K., (2019), Options for low-global-warming-potential and natural refrigerants part I: Constrains of the shape of the P–T and T–S saturation phase boundaries, Int. J. Refrig., 106, pp 144-152 .
8. Ge, Y. T., Tassou, S. A., (2011), Thermodynamic analysis of transcritical CO2 booster refrigeration systems in supermarket, Energy Convers. Manag., 52(4), pp 1868-1875.
9. Nawaz, K., Ally, M. R., (2019), Options for low-global-warming-potential and natural refrigerants Part 2: Performance of refrigerants and systemic irreversibilities, Int. J. Refrig., 106, pp 213-224.
10. Two-stage compression refrigeration system with parallel compression and solar absorption partial cascade refrigeration system,” Energy Convers. Manag., 204, 112278 .
11. Schulz, M., Kourkoulas, D., (2014), Regulation (EU) No 517/2014 of the European Parliament and of the Council of 16 April 2014 on fluorinated greenhouse gases and repealing Regulation (EC) No 842/2006,” Off. J. Eur. Union.
12. Heath, E. A., (2017), Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer (Kigali Amendment),”Int.Leg.Mater., 56(1), pp 193-205.
13. Raabe, G., (2019), Molecular simulation studies on refrigerants past – present – future, Fluid Phase Equilib., 485, pp 190-198.
14. Wang, H., Lei, Z., Zhang, X., Zhou, B., Peng, J., (2019), A review of deep learning for renewable energy forecasting,” Energy Conversion and Management., 198, 111799.
15. Qyyum, M. A., Chaniago, Y. D., Ali, W., Qadeer, K., Lee, M., (2019), Coal to clean energy: Energy-efficient single-loop mixed-refrigerant-based schemes for the liquefaction of synthetic natural gas,” J. Clean. Prod., 211, pp 574-589.
16. Chen, Y., He, L., Guan, Y., Lu, H., Li, J., (2017), Life cycle assessment of greenhouse gas emissions and water-energy optimization for shale gas supply chain planning based on multi-level approach: Case study in Barnett, Marcellus, Fayetteville, and Haynesville shales, Energy Convers. Manag., 134, pp 382-398.
17. Lian, J., Zhang, Y., Ma, C., Yang, Y., Chaima, E., (2019), A review on recent sizing methodologies of hybrid renewable energy systems,” Energy Conversion and Management., 199, 112027.
18. Megdouli, K., Ejemni, N., Nahdi, E., Mhimid, A., Kairouani, L., (2017), Thermodynamic analysis of a novel ejector expansion transcritical CO2/N2O cascade refrigeration (NEETCR) system for cooling applications at low temperatures,” Energy, 128, pp 586–600.
19. Ebrahimi, A. N., Rahimian, F. P., Loron, M. S., (2013), Impacts of Climate on Genesis of Vernacular Architecture of Different Parts of Iran: Case Study of Cold and Dry Azerbaijan--Iran,” ALAM CIPTA, Int. J. Sustain. Trop. Des. Res. Pract., 6(1), pp. 69–82.
20. Industrial Gases. https://www.linde-gas.com/en/.
21. Messineo, A., Panno, D., (2012), Performance evaluation of cascade refrigeration systems using different refrigerants,” Int. J. Air-Conditioning Refrig., 20(03), 1250010.
22. Sun, Z., Liang, Y., Liu, S., Ji, W., Zang, R., Liang, R., Guo, Z., (2016), Comparative analysis of thermodynamic performance of a cascade refrigeration system for refrigerant couples R41/R404A and R23/R404A. Applied Energy, 184, pp 19-25.
_||_