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Experimental energy evaluation of R516A and R513A as replacement of R134a in refrigeration and air conditioning modes.
Author(s) : MENDEZ-MENDEZ D., PÉREZ-GARCÍA V., MORALES-FUENTES A.
Type of article: IJR article
Summary
This paper presents the experimental energy behavior of R516A and R513A compared to R134a as baseline refrigerant in refrigeration and air conditioning temperatures. The comparative is made in an evaporating temperatures range of 261 K to 285 K with step 4 K increases, taking condensing temperatures of 308 K, 313 K, and 318 K. Results show that the best energy performance was reached by R134a while the worst were for R513A in all experimental tests, here R516A shows the smallest difference respect to R134a being just 5.4%. Also, R134a showed lower values in discharge pressure respect to its replacements, while R516A exhibited the lower discharge temperatures. R513A showed lower useful superheating for refrigeration applications, while R516A achieved the minor useful superheating for air conditioning temperatures only below R134a. Finally, R513A reached the higher value of volumetric refrigeration capacity for air conditioning temperatures at 308 K condensing temperature. All results were obtained considering the optimal refrigerant mass charge which were 682 g, 655 g, and 632 g for R134a, R513A and R516A, respectively.
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Details
- Original title: Experimental energy evaluation of R516A and R513A as replacement of R134a in refrigeration and air conditioning modes.
- Record ID : 30032003
- Languages: English
- Subject: HFCs alternatives
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 154
- Publication date: 2023/10
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2023.06.003
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Indexing
- Themes: HFO et HCFO
- Keywords: Drop-in; R134a; R516A; R513A; Low GWP; COP; Expérimentation; Test rig; Air conditioning; Cooling capacity; Refrigerant charge
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