• Home page
  • Publications

  • Hazard evaluation of R32/R1234ze(E) cloud explo...

IIR document

Hazard evaluation of R32/R1234ze(E) cloud explosion.

Author(s) : LIU Q., LI Y., GAO W., ZHANG K., HUANG L., BI M.

Type of article: IJR article


This paper is aimed at evaluating characteristics of R32/R1234ze(E) cloud explosion. The flame morphologies and explosion pressure are obtained experimentally and the laminar burning velocity is analyzed thermally and chemically. The results indicated that with the increase of equivalence ratio, the limiting oxygen content of xE=10% decreases monotonously, but the limiting oxygen content of xE=20% decreases firstly and then increases. The destabilization effect of hydrodynamic instability continues to reduce with the decrease of oxygen content. For various equivalence ratios and R1234ze (E) contents, a significant color difference is observed due to the formation of carbon particle and CH radical. As the oxygen content decreases, due to the decrease of laminar burning velocity, the maximum explosion pressure, maximum rate of pressure rise, positive pressure impulse and negative pressure impulse continue to decrease. The elementary reactions of greatly affecting laminar burning velocity are consisted of R1, R904, R925 and R963.

Available documents

Format PDF

Pages: 159-167


  • Public price

    15 €

  • Member price*

    8 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).


  • Original title: Hazard evaluation of R32/R1234ze(E) cloud explosion.
  • Record ID : 30027375
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 111
  • Publication date: 2020/03
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.11.025


See other articles in this issue (19)
See the source