IIR document

Frequency characteristics of the noise of R600a refrigerant flowing in a pipe with intermittent flow pattern.

Author(s) : HAN H. S., JEONG W. B., KIM M. S.

Type of article: Article, IJR article

Summary

The acoustic characteristics of a long-shaped cylindrical bubble for slug or churn flow in a pipe are different from those of a freely rising spherical bubble in infinite liquid. In this research, the theoretical estimation of the natural frequency of the long-shaped cylindrical bubble was derived using the energy conservation law for a single bubble in a pipe. The acoustic characteristics of bubbles in a pipe were also investigated with the R600a refrigerant, which is widely used in refrigerators when the flow pattern in a pipe is slug or churn flow. In order to make slug and churn flow artificially, refrigerant-supplying equipment was designed and developed. Using this test equipment, the frequency characteristics of the long-shaped cylindrical bubble in 2-phase flow were investigated experimentally.

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Pages: 1497-1506

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Details

  • Original title: Frequency characteristics of the noise of R600a refrigerant flowing in a pipe with intermittent flow pattern.
  • Record ID : 30001538
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 6
  • Publication date: 2011/09

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