Performance characteristics of low global warming potential R134a alternative refrigerants in ejector-expansion refrigeration system

• Autorzy: Mishra S. , Sarkar J.

Identyfikatory

DOI

10.1515/aoter-2016-0027

• Języki publikacji: EN

Abstrakty

EN

Performance assessment of ejector-expansion vapor compression refrigeration system with eco-friendly R134a alternative refrigerants (R152a, R1234yf, R600a, R600, R290, R161, R32, and propylene) is presented for air-conditioning application. Ejector has been modeled by considering experimental data based correlations of component efficiencies to take care of all irreversibilities. Ejector area ratio has been optimized based on maximum coefficient of performance (COP) for typical air-conditioner operating temperatures. Selected refrigerants have been compared based on area ratio, pressure lift ratio, entrainment ratio, COP, COP improvement and volumetric cooling capacity. Effects of normal boiling point and critical point on the performances have been studied as well. Using ejector as an expansion device, maximum improvement in COP is noted in R1234yf (10.1%), which reduces the COP deviation with R134a (4.5% less in basic cycle and 2.5% less in ejector cycle). Hence, R1234yf seems to be best alternative for ejector expansion system due to its mild flammability and comparable volumetric capacity and cooling COP. refrigerant R161 is superior to R134a in terms of both COP and volumetric cooling capacity, although may be restricted for low capacity application due to its flammability.

Słowa kluczowe

EN

eco-friendly refrigerant; two-phase ejector; optimization; COP; area ratio; critical temperature

PL

czynnik chłodniczy ekologiczny; strumienica dwufazowa; optymalizacja; stosunek powierzchni; temperatura krytyczna

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2016
• Tom: Vol. 37, no. 4
• Strony: 55--72
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wz.

Twórcy

autor

Mishra S.

• Department of Mechanical Engineering, Indian Institute of Technology (B.H.U.), Varanasi, UP 221005, India

autor

Sarkar J.

• Department of Mechanical Engineering, Indian Institute of Technology (B.H.U.), Varanasi, UP 221005, India

Bibliografia

• [1] Sarkar J.: Ejector enhanced vapor compression refrigeration and heat pump systems – a review. Renew. Sust. Energ. Rev. 16(2012), 9, 6647–6659.
• [2] Elbel S., Lawrence N.: Review of recent developments in advanced ejector technology. Int. J. Refrig. 62(2016), 1–18.
• [3] Kornhauser A.A.: The use of an ejector as a refrigerant expander. In: Proc. USNC/IIR-Purdue Refrigeration Conf. 1990, 10–19.
• [4] Liu J.P., Chen J.P., Chen Z.J.: Thermodynamic analysis on trans-critical R744 vapor compression/ejection hybrid refrigeration cycle. In: Proc. 5th IIR G. Lorentzen Conf. on Natural Working Fluids, Guangzhou 2002, 184–188.
• [5] Park K.-J., Seo T., Jung D.: Performance of alternative refrigerants for residential air-conditioning applications. Appl. Energ. 84(2007), 10, 985–991.
• [6] Gaurav, Kumar R.: Alternatives to R134a (CF3CH2F) Refrigerant – A Review. National Conf. on Trends and Advances in Mechanical Engineering, YMCA University of Science & Technology, Faridabad, Haryana 2012.
• [7] Bolaji B.O.: Theoretical analysis of the energy performance of three low global warming potential hydro-fluorocarbon refrigerants as R134a alternatives in refrigeration systems. IMechE, Part A: J. Power Energy 228(2014), 1, 56–63.
• [8] Wang C.-C.: System performance of R-1234yf refrigerant in air-conditioning and heat pump system – An overview of current status. Appl. Thermal Eng. 73(2014), 2, 1412–1420.
• [9] Nehdi E., Kairouani L., Bouzaina M.: Performance analysis of the vapour compression cycle using ejector as an expander. Int. J. Energ. Res. 31(2007), 4, 364–375.
• [10] Yari M.: Exegetic analysis of the vapor compression refrigeration cycle using ejector as an expander. Int. J. Exerg. 5(2008), 3, 326–340.
• [11] Chaiwongsa P., Wongwises S.: Experimental study on R-134a refrigeration system using a two-phase ejector as an expansion device. Appl. Thermal Eng. 28(2008), 5-6, 467–477.
• [12] Sarkar J.: Performance characteristics of natural refrigerants based ejector expansion refrigeration cycles. IMechE, Part A: J. Power Energy 223(2009), 5, 543–550.
• [13] Dudar A., Butrymowicz D., Śmierciew K., Karwacki J.: Exergy analysis of operation of two-phase ejector in compression refrigeration systems. Arch. Thermodyn. 34(2013), 4, 107–122.
• [14] Li H., Cao F., Bu X., Wang L., Wang X.: Performance characteristics of R1234yf ejector-expansion refrigeration cycle. Appl. Energ. 121(2014), 96–103.
• [15] Chen J., Havtun H., Palm B.: Screening of working fluids for the ejector refrigeration system. Int. J. Refrig. 47(2014), 1–14.
• [16] Sarkar J.: Optimization of ejector-expansion transcritical CO2 heat pump cycle. Energ. 33(2008), 9,1399–1406.
• [17] Zhao L., Yang X., Deng S., Li H., Yu X.: Performance analysis of the ejectorexpansion refrigeration cycle using zeotropic mixtures. Int. J. Refrig. 57(2015), 197–207.
• [18] Wang X., Yu J.: An investigation on the component efficiencies of a small twophase ejector. Int. J. Refrig. 71(2016), 26–38.
• [19] Brunin O., Feidt M., Hivet B.: Comparison of the working domains of some compression heat pumps and a compression-absorption heat pump. Int. J. Refrig. 20(1997), 5, 308–318.
• [20] Klein S.A.: Engineering Equation Solver Professional. Version V10.042-3D, 2016.
• [21] Ersoy H.K., Sag N.B.: Preliminary experimental results on the R134a refrigeration system using a two-phase ejector as an expander. Int. J. Refrig. 43(2014), 97–110.