Share

IIR document

Study of decomposition of R-1132(E) as ultra-low GWP refrigerants.

Author(s) : GOTO T., USUI T., YOSHIMURA T., YAMADA Y.

Type of article: IJR article

Summary

The use of hydrofluorocarbons (HFCs) as refrigerants in air-conditioning and refrigeration systems is being re-examined globally due to their high Global Warming Potential (GWP) and large environmental load. Next-generation refrigerants with low GWP are currently attracting a lot of attention as a replacement for conventional refrigerants. Recently, we have developed a novel refrigerant, trans-1,2-difluoroethylene (R-1132(E)), which has similar saturated vapor pressure to R-32 and an extremely low GWP value of 0.0056. R-474A and R-479A, refrigerants containing R-1132(E), are already registered with ASHRAE standard 34 and ISO 817 and are expected to become next-generation refrigerants. However, due to chemical stability issues, a self-decomposition reaction of R-1132(E) can occur. For this study, both R-1132(E) and the blend of R-1132(E) and R-1234yf have been investigated. We have developed methods for evaluating the self-decomposition reaction for three ignition sources that may occur in air conditioners and clarified the conditions under which the self-decomposition reaction of R-1132(E) and R-1234yf blends does not occur.

Available documents

Format PDF

Pages: 71-77

Available

  • Public price

    20 €

  • Member price*

    Free

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

Details

  • Original title: Study of decomposition of R-1132(E) as ultra-low GWP refrigerants.
  • Record ID : 30032353
  • Languages: English
  • Subject: HFCs alternatives
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 163
  • Publication date: 2024/07
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2024.04.013

Links


See other articles in this issue (5)
See the source

Indexing