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Experimental investigation of startup characteristics of R290 rotary compressor under low ambient temperature heating condition.

Author(s) : LIN J., WU J., ZHANG Z., et al.

Type of article: Article, IJR article

Summary

The cold and warm startup characteristics of an R290 heat pump system and its rotary compressor were experimentally investigated under a low ambient temperature heating condition. These startup characteristics included the temperatures in the compressor shell and system and the pressures in the cylinder and system.The results showed that the minimum suction gauge pressure (-48 kPa) during a cold startup was lower than that during a warm startup (155 kPa) under a low ambient temperature heating condition. In addition, the time required for the R290 heat pump system to reach a steady pressure was much longer than
that of a system using R410A as the refrigerant. Compared with that of the cooling condition, smaller amounts of liquid were generated in the cylinder at the beginnings of both the cold and warm startup processes under the low ambient temperature heating condition.

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Pages: 128-135

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Details

  • Original title: Experimental investigation of startup characteristics of R290 rotary compressor under low ambient temperature heating condition.
  • Record ID : 30022287
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 77
  • Publication date: 2017/05
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2017.02.029

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