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Preliminary study of the splashing effect due to the bursting of giant water bubbles near the triple point: application to water evaporator.

Number: 0617

Author(s) : GIRAUD F., MANTAROPOULOS P., TREMEAC B., TOBALY P.

Summary

Water offers various advantages in terms of environmental impact, thermophysical properties, cost and use. However, using water as refrigerant also has various drawbacks. To improve the fundamental knowledge about water vaporization at conditions representative of conditions obtained in the evaporator of a water refrigeration system, vaporization phenomena occurring inside a rectangular channel are studied. The impact of different parameters like the apparent surface of the bubble at the end of the growth, the location of the bubble at its early stage, and the channel thickness, in relation with the observed bubble behaviour, are discussed. It is shown that the height up to which the liquid is splashed (Δℎ𝑚𝑚𝑎𝑥) is highly related to the distance between the bubble at the beginning of the growth and the free interface (Δh0) and that the latter parameter has an influence on the observed phenomena at the bubble scale.

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Pages: 10 p.

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Details

  • Original title: Preliminary study of the splashing effect due to the bursting of giant water bubbles near the triple point: application to water evaporator.
  • Record ID : 30031639
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0617

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