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The application and risk assessment of R290 in split type household air conditioners.

Number: pap. n. 730

Author(s) : HE G., SUN W., TANG W., et al.

Summary

Nowadays, the natural substance R290 has been considered as a promising next generation refrigerant for split type household air conditioners (STHACs) owing to its excellent environmental and thermodynamic properties. However, the obvious shortcoming of R290 is flammable and explosive, which make the application of R290 needs more security precautions to ensure the safety. This study introduced the application and risk assessment of R290 in the STHACs. The refrigerant mass distribution in the components of R290 STHAC were carried out. In addition, the R290 concentration distribution after a leakage from the STAHC at different charge quantity and the diameter of leak hole was presented and the risk of R290 was analysed. Based on the results, a practical method by installing a solenoid valve to reduce the risk of R290 was proposed and verified.

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Pages: 8

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Details

  • Original title: The application and risk assessment of R290 in split type household air conditioners.
  • Record ID : 30026240
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.0730

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