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Experimental study on R-22, R-427A, R-161 and R-290 in air-source heat pump for space heating at low ambient temperatures.

Author(s) : CHEN X., LIU C., YANG J., et al.

Type of article: Article, IJR article

Summary

To help reduce the warming impacts, this study evaluates the drop-in performances of R-427A, R-161 and R-290 in R-22 air source heat pump with EVI (Economized Vapor Injection). The results show that the IPLV(H) of R-161 and R-290 arises 5~8% relative to R-22 with EVI on. A reversal occurs between R-290 and the baseline with EVI on, making the IPLV(H) of R-290 superior to that of R-22 by 3.6~5.2% from worse performance with EVI off. At -20/41°C condition, the capacity and COP of R-290 increase by 38% and 19%, respectively. Considering COP and discharge temperatures, R-290 is better-performed to replace R-22 in high pressure ratio conditions. Based on LCCP (Life Cycle Climate Performance) model, 11% of the equivalent CO2 emission can be reduced by using R-161 and R-290. However, the discharge temperature of R-161 is high in the high pressure ratio condition. R-290 is the most synthetically beneficial alternative.

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Pages: 147-154

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Details

  • Original title: Experimental study on R-22, R-427A, R-161 and R-290 in air-source heat pump for space heating at low ambient temperatures.
  • Record ID : 30025236
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 96
  • Publication date: 2018/12
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2018.08.021

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