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Vapor-liquid equilibrium data and performance evaluation on low-GWP working pairs of 3, 3, 3-trifluoropropene (R1243zf) with triethylene glycol dimethyl ether (DMETrEG) or N-methyl-2-pyrrolidone (NMP) for absorption systems. 

Auteurs : KONG D., WANG Z., ZHOU S., FAN M., SUN W., SONG Q., WANG D., HE G.

Type d'article : Article de la RIF

Résumé

Absorption systems, with their diverse types and wide applications, are capable of fully utilizing low-grade waste heat. In-depth studies on their operating mechanisms and working pairs have therefore garnered widespread attention. This study measured the solubility of R1243zf in DMETrEG and NMP from 303.15 to 353.15 K. The experimental data were correlated by non-random two-liquid (NRTL) activity coefficient model. The maximum absolute relative deviation (MARD) of R1243zf+DMETrEG and R1243zf+NMP were 3.9819 % and 3.303 %, respectively. Their average absolute relative deviation (AARD) were 2.3802 % and 0.7477 %, respectively. R1243zf+DMETrEG and R1243zf+NMP are evaluated in the absorption refrigeration cycle (ARC), and it is found that the maximum coefficient of performance (COP) of the two working pairs is >0.3. Among them, R1243zf+DMETrEG has a higher COP of 0.362. The COP of R1243zf+NMP is 0.325. The COP is smaller than that of R134a and R152a, but it is similar to that of R1234yf and R1234ze(E). The solubility is smaller than that predicted by the previous UNIFAC-DMD model, which makes the COP decrease. By comparing with the excess properties, it can be seen that excess Gibbs Energy G E certain negative correlation with COP.

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Pages : 12

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Détails

  • Titre original : Vapor-liquid equilibrium data and performance evaluation on low-GWP working pairs of 3, 3, 3-trifluoropropene (R1243zf) with triethylene glycol dimethyl ether (DMETrEG) or N-methyl-2-pyrrolidone (NMP) for absorption systems. 
  • Identifiant de la fiche : 30034938
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 187
  • Date d'édition : 07/2026
  • DOI : http://dx.doi.org/https://doi.org/10.1016/j.ijrefrig.2026.106954

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