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Experimental study on two-stage compression refrigeration/heat pump system with dual-cylinder rolling piston compressor.

Author(s) : XU S., MA G.

Type of article: Article

Summary

A thermodynamically analytical model on the two-stage compression refrigeration/heat pump system with vapor injection was derived. The optimal volume ratio of the high-pressure cylinder to the low-pressure one has been discussed under both cooling and heating conditions. Based on the above research, the prototype was developed and its experimental setup established. A comprehensive experiments for the prototype have been conducted, and the results show that, compared with the single-stage compression heat pump system, the cooling capacity and cooling COP can increase 5%–15% and 10–12%, respectively. Also, the heating capacity with the evaporating temperature ranging from 0.3 to 3°C is 92–95% of that under the rate condition with the evaporating temperature of 7°C, and 58% when the evaporation temperature is between -28°C and -24°C.

Details

  • Original title: Experimental study on two-stage compression refrigeration/heat pump system with dual-cylinder rolling piston compressor.
  • Record ID : 30010285
  • Languages: English
  • Source: Applied thermal Engineering - vol. 62 - n. 2
  • Publication date: 2014/01
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2013.09.035

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