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Heat transfer characteristics of refrigerant-based nanofluid flow boiling inside a horizontal smooth tube.

Author(s) : PENG H., DING G., JIANG W., et al.

Type of article: Article, IJR article

Summary

The objective of this paper is to investigate the influence of nanoparticles on the heat transfer characteristics of refrigerant-based nanofluid flow boiling inside a horizontal smooth tube, and to present a correlation for predicting heat transfer performance of refrigerant-based nanofluid. For the convenience of preparing refrigerant-based nanofluid, R113 refrigerant and CuO nanoparticles were used. Experimental conditions include an evaporation pressure of 78.25 kPa, mass fluxes from 100 to 200 kg/m2.s, heat fluxes from 3.08 to 6.16 kW/m2, inlet vapour qualities from 0.2 to 0.7, and mass fractions of nanoparticles from 0 to 0.5 wt%. The experimental results show that the heat transfer coefficient of refrigerant-based nanofluid is larger than that of pure refrigerant, and the maximum enhancement of heat transfer coefficient is 29.7%. A heat transfer correlation for refrigerant-based nanofluid is proposed, and the predictions agree with 93% of the experimental data within the deviation of plus or minus 20%.

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Pages: pp. 1259-1270

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Details

  • Original title: Heat transfer characteristics of refrigerant-based nanofluid flow boiling inside a horizontal smooth tube.
  • Record ID : 2009-1938
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 6
  • Publication date: 2009/09

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