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Flammability evaluation of HFC-32 and HFC-32/134a under practical operating conditions.

Author(s) : KATAOKA O., YOSHIZAWA M., OHNISHI H., ISHIDA S.

Summary

Refrigerants were pooled in a pan whose size is typical of a small room in Japan and were ignited, in order to evaluate the potential of ignition and observe the nature of the flame propagation. Combustion of R32 occurred, but not explosively, although explosions of R32 in small vessels have been reported. Furthermore, combustion of R32 was shown to be quite different from that of R152a, even though they are classified in the same flammability group by ASHRAE. Typical ignition sources under practical operating conditions were also evaluated to assess the risk of ignition. For example, it was confirmed that typical ignition sources such as a lit pilot burner could not ignite the blend.

Details

  • Original title: Flammability evaluation of HFC-32 and HFC-32/134a under practical operating conditions.
  • Record ID : 1997-0064
  • Languages: English
  • Source: Proceedings of the 1996 Purdue International Refrigeration Conference.
  • Publication date: 1996/07/23
  • Document available for consultation in the library of the IIR headquarters only.

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