Drop-in energy performance evaluation of R1234yf and R1234ze(E) in a vapor compression system as R134a replacements

Mota-Babiloni, Adrián; Navarro-Esbrí, Joaquin; Barragán-Cervera, Ángel; Moles, Fran; Peris, Bernardo

doi:10.1016/j.applthermaleng.2014.06.056

Cited by 213 publications

(92 citation statements)

References 31 publications

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“…They measured 2-13% reduction in capacity but COP increments from 7 to 33% in relation to R-134a. Also, Mota-Babiloni et al (2014) using an open-type compressor measured reductions in capacity from 9 to 39% and reductions in COP from 6 to 7% regarding the operation with R-134a with the substitutes R-1234yf and R-1234ze(E). Finally, concerning large systems, Cabello et al (2017) analysed the R-134a drop-in process with R-152a in the primary circuit of a HFC/CO 2 cascade, obtaining similar energy behaviour than with R134a.…”

Section: Table 1 R-134a Drop-in Substitutes For Medium Temperature Amentioning

confidence: 99%

Experimental analysis of R-450A and R-513A as replacements of R-134a and R-507A in a medium temperature commercial refrigeration system

Llopis

Sánchez

Cabello

et al. 2017

International Journal of Refrigeration

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This work presents the experimental evaluation of R-513A (GWP=573) and R-450A (GWP=547) as R-134a (GWP=1301) drop-in replacements and as R-507A (GWP=3987) retrofits in a commercial direct expansion refrigeration system for medium temperature applications (2ºC). The evaluation covered 24-hour tests using a single-stage cycle with semi-hermetic compressor, an electronic expansion valve customized for each refrigerant and a commercial vertical cabinet with doors placed inside a climatic chamber. The tests were performed at three water dissipation temperatures (23.3, 32.8 and 43.6ºC). Experimental results indicate that R-513A and R-450A can operate with R-134a plants, with increments in energy consumption between -1.6 to +1.2% for R-513A and from +1.3 to +6.8% for R-450A, whereas in comparison with R-507A, R-513A offered reductions in energy consumption between 4.4 to 8.2% and R-450A between 0 to 3.3%. The paper analyses the modification of the operating pressures/temperatures and the energy indicators using the four refrigerants. KEYWORDSR-450A; R-513A; R-134a; R-507A; commercial refrigeration; energy analysis; NOMENCLATURE

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Section: Table 1 R-134a Drop-in Substitutes For Medium Temperature Amentioning

confidence: 99%

Experimental analysis of R-450A and R-513A as replacements of R-134a and R-507A in a medium temperature commercial refrigeration system

Llopis

Sánchez

Cabello

et al. 2017

International Journal of Refrigeration

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“…They also reported that the compressor discharge temperature of R1234yf is 16.4-17.3% lower than that of R134a. Mota-Babiloni et al [8] determined that the coefficient of performance (COP) and cooling capacity of R1234yf compared to R134a was up to 3-11% and 9% lower, respectively. On the other hand, Lee and Jung [3] obtained 2.7% lower COP and 4.0% lower cooling capacity.…”

Section: Introductionmentioning

confidence: 99%

Effect of ambient temperature on the performance characteristics of automotive air conditioning system using R1234yf and R134a: Energy and exergy-based approaches

Suhermanto

Hoşöz

Aral³

2016

AIP Conference Proceedings

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“…HFO refrigerants are actually unsaturated HFC refrigerants and widely recognized [13] as the next generation of refrigerants because of their environmental friendliness, costeffectiveness, and greater energy efficiencies. HFOs are distinguished from HFCs by being derivatives of olefins rather than alkanes (paraffins).…”

Section: Introductionmentioning

confidence: 99%

HFO1234yf as a drop-in replacement for R134a in domestic refrigerators: a life cycle climate performance analysis

Aprea¹,

Greco²,

Maiorino³

et al. 2016

IJHT

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Based on recent surveys, about 17% of the overall energy consumption comes out from refrigeration. Nowadays the use of environmentally friendly refrigerants has become a "must" in order to mitigate the global warming. A Vapor Compression Plant (VCP) produces typically both a direct and an indirect contribution to global warming where the first one is related to the Global Warming Potential (GWP) of the fraction of refrigerant charge, released accidentally in the atmosphere or not recovered when the system is scrapped. The employment of an environmental metric, in order to facilitate the choice of low GWP refrigerants, has to be implemented in VCPs. LCCP is one of the most comprehensive parameters which takes into account all the relevant indirect emissions related to the whole process of VCP and refrigerant manufacturing and their transportation. In this paper the results of an experimental comparative analysis between R134a and HFO1234yf, implemented in a domestic refrigerator, are presented. It have been measured energy consumptions under sub-tropical conditions in accordance with the UNI-EN-ISO15502. In addition a LCCP analysis, to evaluate the environmental impact due to HFO1234yf used as a substitute of R134a, is reported.

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Drop-in energy performance evaluation of R1234yf and R1234ze(E) in a vapor compression system as R134a replacements

Cited by 213 publications

References 31 publications

Experimental analysis of R-450A and R-513A as replacements of R-134a and R-507A in a medium temperature commercial refrigeration system

Experimental analysis of R-450A and R-513A as replacements of R-134a and R-507A in a medium temperature commercial refrigeration system

Effect of ambient temperature on the performance characteristics of automotive air conditioning system using R1234yf and R134a: Energy and exergy-based approaches

HFO1234yf as a drop-in replacement for R134a in domestic refrigerators: a life cycle climate performance analysis

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