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Nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant.

Author(s) : HU H., PENG H., DING G.

Type of article: Article, IJR article

Summary

The objective of this paper is to investigate the nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant. In the experiments, three types of surfactants including SDS, CTAB and Span-80 were used. Nanolubricant was formed from Cu nanoparticles and oil VG68. The results show that, the ratio of heat transfer coefficient of refrigerant/nanolubricant mixture with surfactant to that without surfactant (defined as surfactant impact factor, SIF) are within 0.85-1.58, 0.73-1.31, and 0.68-1.24 for SDS, CTAB and Span-80, respectively. The values of SIF increase with the increase of surfactant concentration and then decrease, and increase with the decrease of surfactant molecular weight, nanolubricant concentration and heat flux. A nucleate pool boiling heat transfer correlation for refrigerant/nanolubricant mixture was proposed, and it agrees well with the experimental data of refrigerant/nanolubricant mixture with surfactant and that without surfactant.

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Pages: 1045-1055

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Details

  • Original title: Nucleate pool boiling heat transfer characteristics of refrigerant/nanolubricant mixture with surfactant.
  • Record ID : 30008035
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 3
  • Publication date: 2013/05

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