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Flow condensation pressure drop characteristics of R410A-oil mixture inside small diameter horizontal microfin tubes.

Author(s) : HUANG X., DING G., HU H., et al.

Type of article: Article, IJR article

Summary

Flow condensation pressure drop characteristics of R410A-oil mixture inside small diameter (5.0 and 4.0 mm OD) horizontal microfin tubes were investigated experimentally covering nominal oil concentrations from 0 to 5%. The research results indicate that, comparing with the frictional pressure drop of pure R410A, the frictional pressure drop of R410A-oil mixture may decrease by maximum of 18% when the vapour quality is lower than 0.6, and increase by maximum of 13% when the vapour quality is higher than 0.6. A new frictional pressure drop correlation for R410A-oil mixture flow condensation inside microfin tubes is developed based on the refrigerant-oil mixture properties, and can agree with 94% of the experimental data within a deviation of -30 to +30%.

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Pages: pp. 1356-1369

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Details

  • Original title: Flow condensation pressure drop characteristics of R410A-oil mixture inside small diameter horizontal microfin tubes.
  • Record ID : 2010-1090
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 33 - n. 7
  • Publication date: 2010/11

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