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Ice slurry formation based on nanofluid and hydrophobic cooling surface.

Author(s) : WU P., ZHANG X. J., QIU L. M.

Summary

In this study, an emulsion adding nanoparticles and dispersants was investigated to dispel the ice adhered to the cooling surface. Various nanoparticles, such as alpha-Al(2)O(3), gamma-Al(2)O(3), TiO(2) and SiO(2) were studied in this paper. Polyoxyethylene (10) nonyl phenylether (referred to as TX-10) and sodium dodecylbenzenesulfonate were used as the surfactants to make the aqueous solution stable and even, as well as the ultrasonic vibration. The hydrophobic surface coating with two kinds of waterproof dope were studied. Through the experiments, it is concluded that the nanoparticles make a well improvement in enhancing thermal conductivity and decreasing the supercooling degree. Besides, the low surface energy imparted by the waterproof dope coated is responsible for the formation of lotus effect preventing ice from adhesion to the cooling wall, combined with the breakage of the temperature boundary layer near the cooling wall by the stirrer.

Details

  • Original title: Ice slurry formation based on nanofluid and hydrophobic cooling surface.
  • Record ID : 2008-2536
  • Languages: English
  • Source: Cryogenics and refrigeration. Proceedings of ICCR'2008.
  • Publication date: 2008/04/05

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