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Prediction of heat transfer coefficients for refrigerants flowing inside a herringbone tube.

[In Japanese. / En japonais.]

Author(s) : KASAI K., FUJINO H., YOSHIOKA S., et al.

Type of article: Article

Summary

The paper presents a new method for predicting evaporating and condensing heat transfer coefficients of refrigerants flowing inside a new herringbone-type heat transfer tube which was developed for use in an air-conditioning machine. The prediction assumes that the heat transfer coefficient is simply governed by the circumferential local thickness of a unique liquid film layer formed inside the tube. The semi-empirical prediction method developed agrees with the experimental data within a deviation of 30% for both evaporation and condensation.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2003-2186
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 19 - n. 3
  • Publication date: 2002
  • Document available for consultation in the library of the IIR headquarters only.

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