Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Measurement of solubility and miscibility of R-410A/POE oil mixture

R-410A/POE 오일 혼합물의 용해도 및 상용성 측정

  • 송준석 (아주대학교 대학원) ;
  • 김창년 (아주대학교 대학원) ;
  • 박영무 (아주대학교 기계 및 산업공학부)
  • Published : 2000.02.01
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Abstract

The solubility and miscibility measurement apparatus was developed and used to obtain data for refrigerant/oil mixture. The solubility and miscibility data for R-410A/68 ISO VG polyol ester (POE) oil mixture are obtained over the temperature range from -20 to $60^{circ}C\;with\;10^{\circ}C$ intervals and the oil concentration range from 0 to 90 wt%. Using the experimental data, an empirical model was developed to predict the solubility relations for R-410A/POE oil mixture at equilibrium. In the R-410A/Solest 68 oil mixture, the average root-mean-square deviation between measured data and calculated results from the empirical model is 3.4% and in the R-4104/EMKARATE RL 68H oil mixture, that is 2.86%. For R-410A/68 ISO VG POE oil mixture immiscibility was usually observed at the low oil concentrations(5~30 wt%) over the all experimental temperature range($-20~60^{circ}C$) and at the high oil concentrations(50~90 wt%) over the low experimental temperature range($-2O~0^{circ}C$).

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References

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