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An experimental study of heat transfer on a tube bank under frost formation conditions.

Author(s) : RAMIREZ-HERNANDEZ H. G., SANCHEZ-CRUZ F. A., SOLODO-ORDAZ F. J., et al.

Type of article: Article, IJR article

Summary

An experimental study of heat and mass transfer on a tube bank under frost formation conditions was conducted using a closed-loop wind tunnel. The tube bank was exposed to a controlled environment; surface temperature from C to C, relative humidity from 50% to 90%, air dry bulb temperature from 1?°C to 11?°C, average air velocity from 0.3 ms to 1.0 ms and Reynolds number from 518 to 1719. The results showed a non-uniform frost growth due to the air stream characteristics. When the Reynolds number increases a more uniform pattern becomes noticeable. The frost growth is more uniform on the last tube than on the first one, due to the aerodynamic differences. Sensible heat transfer has a greater impact on the total heat transfer, compared to latent heat transfer effect. The higher the frost layer growth the lower the frost deposition rate on the tubes.

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Pages: 35-46

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Details

  • Original title: An experimental study of heat transfer on a tube bank under frost formation conditions.
  • Record ID : 30025856
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 102
  • Publication date: 2019/06
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.01.031

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