Share

Experimental study of condensation heat transfer of R134a on oil-infused metal foams.

Number: pap. 2274

Author(s) : JIN H., SHEN Y., NI W., et al.

Summary

The condensation process of refrigerants has crucial influence on the efficiency of heating, ventilation, air conditioning and refrigerating systems. Recent research has shown that the use of nanostructured surface with lubricant infusion can enhance condensation heat transfer for low surface tension liquids, which have similar properties with refrigerants. R134, as a highly applied refrigerant, was employed to conduct condensation experiments at a saturation state within a pressure chamber. We also introduced lubricant-infused metal foam surfaces to explore their performance in heat transfer enhancement. A vertical plate surface was cooled by circulate chiller and exposed to the saturated vapor, while the heat flux as well as heat transfer coefficient were calculated based on the one dimensional heat conduction model. The boundary conditions were well controlled, and the repeatability of the condensation experiment were validated through parallel tests. The preliminary results showed that compared to the pure copper surface, the heat transfer coefficient is increased by 102% and 53% using oil-infused nickel foam and copper foam.

Available documents

Format PDF

Pages: 7

Available

  • Public price

    20 €

  • Member price*

    15 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental study of condensation heat transfer of R134a on oil-infused metal foams.
  • Record ID : 30024476
  • Languages: English
  • Source: 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2018/07/09

Links


See other articles from the proceedings (252)
See the conference proceedings

Indexing