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Use of nanoparticles, n-TiO2(R), to make hydrofluorocarbon refrigerants more compatible with mineral oil lubricants.

Uso de nano partículas, n-TiO2(R): une mejor compatibilización de refrigerantes hidro-fluorocarbonos con lubricantes de aceite mineral.

Author(s) : WANG R. X., WU Y. Z., XIE G. Z.

Type of article: Periodical article

Summary

This article is the Spanish translation of an article presented at the IIR meeting in Auckland, Australia (see the Bulletin of the IIR, reference 2007-0630). Hydrofluorocarbon (HFC) refrigerants do not dissolve well in mineral oils. Nanoparticles can be used to improve the solubility of an HFC refrigerant and mineral lubricant. In the paper, a new refrigeration lubricant applied in the refrigerating system that uses HFC-134a as refrigerant is formed by blending some r-type TiO2 nanoparticles, n-TiO2(R), into mineral oil VG32. The solubility of HFC-134a and the new refrigeration lubricant was investigated. The saturated pressure of HFC-134a and new refrigeration oil is tested. The stability of the nanoparticles n-TiO2(R) in mineral oil VG32 is also tested and discussed. The experimental methods are described. The researching results show that n-TiO2(R) can improve the solubility of HFC-134a with mineral oil VG32, and the new lubricant is steady enough for a refrigerating system. It is possible that the polyolester oil for a refrigerating system with HFC refrigerants can be replaced with the new mineral lubricant that is mixture of nanoparticles n-TiO2(R) with mineral oil.

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Pages: 3-8 (5 p.)

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Details

  • Original title: Uso de nano partículas, n-TiO2(R): une mejor compatibilización de refrigerantes hidro-fluorocarbonos con lubricantes de aceite mineral.
  • Record ID : 2008-1581
  • Languages: Spanish
  • Subject: HFCs alternatives
  • Source: IIF-IIR/Frío Calor Aire acond. - vol. 36 - n. 402
  • Publication date: 2008/04

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