EXPERIMENTAL ASSESSMENT OF COMPARATIVE R290VS. R449A REFRIGERANTS BY USING 3E (ENERGY, EXERGY AND ENVIRONMENT) ANALYSIS: A SUPERMARKET APPLICATION

Year 2021, Volume: 7 Issue: 3, 595 - 607, 01.03.2021

Erhan Arslan Meltem Kosan Mustafa Aktas Suleyman Erten

https://doi.org/10.18186/thermal.888449

Cited By: 4

Abstract

Efficiency is becoming an increasingly important issue in cooling systems. It is important to use micro channel heat exchangers in order to increase the cooling system efficiency. In this study, performance analysis of refrigerants used in supermarkets was tested experimentally. Thermodynamic analyses of the refrigerants were examined. The compatibility of R290 and R449A refrigerants with the environment has been experimentally observed. Energy, exergy, and environmental analyses were performed using R290 and R449a refrigerants based on the test results for 24 hours using double inlet and double outlet evaporator. Accordingly, in the experiments using R290, the exergy efficiency and COP value are 43.52 % and 2.09, respectively. In experiments using R449A, these values were found to be 22.28 % and 1.59. Exergy efficiency was increased by 48.81 % in experiments using propane. In addition, an increase of 24.12% was observed in the Coefficient of Performance (COP) value. Considering the environmental analysis results, the amount of CO2 emitted by the R290 refrigerant to the atmosphere during the test period was 3.14 kg/h and R449A was calculated as 3.97 kg/h. It was seen in this study that the R290 refrigerant emits 26.22 % less CO2 to the atmosphere.

Keywords

Comparative R290vs. R449A, Refrigerant, Environmental Analysis, Energy and Exergy Analysis

References

• [1] Protocol M. Montreal protocol on substances that deplete the ozone layer. Washington, DC: US Government Printing Office, 1987;26:128-136.
• [2] Low-Gwp A.O. Montreal Protocol On Substances That Deplete The Ozone Layer. 2019.
• [3] Schulz M. and D Kourkoulas. 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, 2014. 2014;(517):L150.
• [4] Ciconkov R. Refrigerants: There is still no vision for sustainable solutions. International Journal of Refrigeration 2018;86:441-448.
• [5] Heredia-Aricapa Y. et al. Overview of low GWP mixtures for the replacement of HFC refrigerants: R134a, R404A and R410A. International Journal of Refrigeration 2020;111:113-123.
• [6] He M.-G. et al. Application of natural refrigerant propane and propane/isobutane in large capacity chest freezer. Applied Thermal Engineering 2014;70(1):732-736.
• [7] Makhnatch P. et al. Retrofit of lower GWP alternative R449A into an existing R404A indirect supermarket refrigeration system. International Journal of Refrigeration 2017;76: 184-192.
• [8] Vaitkus L. and Dagilis V. Analysis of alternatives to high GWP refrigerants for eutectic refrigerating systems. International Journal of Refrigeration 2017;76:160-169.
• [9] Razmi A. et al. Energy and exergy analysis of an environmentally-friendly hybrid absorption/recompression refrigeration system. Energy conversion and management 2018;164:59-69.
• [10] Padalkar A.S. Mali K.V. and Devotta S. Simulated and experimental performance of split packaged air conditioner using refrigerant HC-290 as a substitute for HCFC-22. Applied Thermal Engineering 2014;62(1):277-284.
• [11] Yilmaz T. and Erdinç M.T. Energetic and exergetic investigation of a novel refrigeration system utilizing ejector integrated subcooling using different refrigerants. Energy 2019;168:712-727.
• [12] Tang W. et al. The performance and risk assessment of R290 in a 13 kW air source heat pump. Applied Thermal Engineering 2018;144:392-402.
• [13] Nasutio, D.M. M. Idris and Pambudi N.A. Room air conditioning performance using liquid-suction heat exchanger retrofitted with R290. Case Studies in Thermal Engineering 2019;13:100350.
• [14] Wang X. and Yu J. Experimental investigation on two-phase driven ejector performance in a novel ejector enhanced refrigeration system. Energy Conversion and Management 2016;111:391-400.
• [15] Liu X. Yu J. and Yan G. Theoretical investigation on an ejector–expansion refrigeration cycle using zeotropic mixture R290/R600a for applications in domestic refrigerator/freezers. Applied Thermal Engineering 2015;90:703-710.
• [16] Liu Y. et al. Compression-injection hybrid refrigeration cycles in household refrigerators. Applied thermal engineering 2010;30(16):2442-2447.
• [17] Nawaz K. et al. R290 (propane) and R600a (isobutane) as natural refrigerants for residential heat pump water heaters. Applied Thermal Engineering 2017;127:870-883.
• [18] Siang J.T. and Sharifian A. Performance of a single‐duct portable propane air conditioning system under different refrigerant charge levels. Heat Transfer—Asian Research 2017;46(8):1246-1261.
• [19] Chen Q. Yu J. and Yan G. Performance analysis of a modified zeotropic mixture (R290/R600) refrigeration cycle with internal subcooler for freezer applications. Applied Thermal Engineering 2016;108:172-180.
• [20] Mohanraj M. et al. Experimental investigation of R290/R600a mixture as an alternative to R134a in a domestic refrigerator. International Journal of Thermal Sciences 2009;48(5):1036-1042.
• [21] Chen Q. Yan G. and Yu J. Performance analysis of an ejector enhanced refrigeration cycle with R290/R600a for application in domestic refrigerator/freezers. Applied Thermal Engineering 2017;120:581-592.
• [22] Tian Q. et al. An experimental investigation of refrigerant mixture R32/R290 as drop-in replacement for HFC410A in household air conditioners. International Journal of Refrigeration 2015; 57:216-228.
• [23] Moallem E. et al. Effects of frost growth on louvered folded fins of microchannel heat exchangers on the time-dependent air side convective heat transfer coefficient. Experimental Thermal and Fluid Science 2017;88:326-335.
• [24] Xu B. et al. Experimental investigation of frost and defrost performance of microchannel heat exchangers for heat pump systems. Applied energy 2013;103:180-188.
• [25] Tosun M. et al. Integration of a mini-channel condenser into a household refrigerator with regard to accurate capillary tube length and refrigerant amount. International Journal of Refrigeration 2019;98:428-435.
• [26] Cremaschi L. and Saad Yatim A. Oil retention in microchannel heat exchangers of an R134a refrigeration system and effects on their energy performance and system COP. Science and Technology for the Built Environment 2019;25(3):272-281.
• [27] Bayrakçı H.C. and Özgür A.E. Energy and exergy analysis of vapor compression refrigeration system using pure hydrocarbon refrigerants. International Journal of Energy Research 2009;33(12):1070-1075.
• [28] Aktaş M. et al. Designing a novel solar-assisted heat pump system with modification of a thermal energy storage unit. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 2019;233(5):588-603.
• [29] Koşa M., et al. Performance analyses of sustainable PV/T assisted heat pump drying system. Solar Energy 2020;199:657-672.
• [30] Caliskan H. Dincer I. and Hepbasli A. Exergoeconomic, enviroeconomic and sustainability analyses of a novel air cooler. Energy and Buildings 2012;55:747-756.
• [31] Sovacool B.K. Valuing the greenhouse gas emissions from nuclear power: A critical survey. Energy Policy 2008;36(8):2950-2963.
• [32] Tripathi R. Tiwari G. and Dwivedi V. Overall energy, exergy and carbon credit analysis of N partially covered photovoltaic thermal (PVT) concentrating collector connected in series. Solar Energy 2016;136:260-267.