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Effect of surface roughness of micro-scale hatched tubes on the absorption performance.

Author(s) : CHO H. C., KANG Y. T., KIM C. D., et al.

Summary

This work was aimed at investigating the effect of surface roughness of micro-hatched tubes on the absorption performance and to develop an experimental correlation of the Nusselt number as a function of the roughness. Three different micro-scale hatched tubes and a bare tube were tested to quantify the effect of the surface roughness on the absorption performance. It was found that the absorption performance of micro-hatched tubes was improved up to twofold compared with the bare tube. An experimental correlation of Nusselt number was developed as a function of the Reynolds number of the film and the roughness, with an error band of approximately 25%.

Details

  • Original title: Effect of surface roughness of micro-scale hatched tubes on the absorption performance.
  • Record ID : 2004-0698
  • Languages: English
  • Source: Proceedings of the International Sorption Heat Pump Conference.
  • Publication date: 2002/09/24
  • Document available for consultation in the library of the IIR headquarters only.

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