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Étude des caractéristiques et du mécanisme d’inhibition de flamme du R-1233zd(E).

Study on the flame inhibition characteristics and mechanism of R1233zd(E).

Auteurs : ZHAI R., LI Z., ZHUANG Y., YE B., ZHAO H., TANG L., WANG K.

Type d'article : Article de la RIF

Résumé

R1233zd(E), as a typical HFO refrigerant, has low Global Warming Potential (GWP) and excellent environmental performance. More importantly, R1233zd(E) is non-flammable, which makes it suitable for blending with f lammable refrigerants to achieve a comprehensive balance between environmental friendliness, safety, and energy efficiency. This study utilized a constant volume combustion platform to explore the effects of R1233zd (E) on the flammability limits and laminar burning velocities of three typical low-GWP flammable refrigerants (R600a, R152a and R32). The experimental results indicated that R1233zd(E) exhibited inhibitory effect on the f lame propagations, with the most pronounced suppression observed for R32. Flammability limit tests revealed that the critical suppression ratios (CSRs) of R1233zd(E)/R600a and R1233zd(E)/R152a were 12.54 and 5.53, respectively. The laminar burning velocities achieved good inhibitory effect as the volumetric ratios of R1233zd (E)/flammable refrigerants were 0.3. It could be concluded that R1233zd(E) had the most significant effect in inhibiting the combustion of R32. Furthermore, the flame retarding mechanism of R1233zd(E) was analyzed by the Density Functional Theory (DFT) method at 6-311++G(d,p) level. It revealed that the flame retardancy of R1233zd(E) stemmed from its thermal decomposition, flame retarding reactions by halogenated groups (Cl and CF 3 ), and consumption reactions of OH and H active radicals. All these resulted in the reduction of active centers in chain reactions and the suppression of combustion system.

Documents disponibles

Format PDF

Pages : 14 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Study on the flame inhibition characteristics and mechanism of R1233zd(E).
  • Identifiant de la fiche : 30034502
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 181
  • Date d'édition : 01/2026
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2025.11.008

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