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Study of frost properties in a low temperature environment.

Author(s) : YAMASHITA K., HAMADA M., ISE S., et al.

Summary

Clarification of the frost deposition mechanism in a low-temperature environment is an important issue in the application of heat exchangers in low-temperature equipments such as showcases and unit coolers. Therefore, frost properties were measured at air temperatures below 0°C. It was observed that needle-shaped frost crystals were formed under the chilled condition (when air temperature was varied from 0 to -5°C), and block shaped frost crystals were formed under the frozen condition (when air temperature was varied from -10 to -20°C). Under those conditions, frost properties such as density, thermal conductivity, heat transfer coefficient, and mass transfer coefficient, were measured and the results discussed.

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Pages: ICR07-B2-809

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Details

  • Original title: Study of frost properties in a low temperature environment.
  • Record ID : 2008-0667
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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