Share

Visualization and mechanisms of pool boiling of propane, isobutane and their mixtures on enhanced tubes with re-entrant channels.

Author(s) : CHEN Y., GROLL M., MERTZ R., et al.

Type of article: Article

Summary

Visualization experiments were carried out for boiling of propane, isobutane and their mixtures on a smooth and four re-entrant enhanced tubes. The results shown by the video pictures indicate a strong mixture effect on nucleation and evaporation processes on the enhanced surfaces. The fluid physical properties also influence the bubble behaviour and consequently affect the heat transfer performance. The effects of re-entrant enhanced surface geometries are complicated and closely related to mixture effects, fluid properties and working conditions. Based on the analysis of the available visualization results, the different heat transfer performance for different enhanced surfaces and especially the difference between pure fluids and mixtures, as shown in an accompanying paper (see this Bulletin, reference 2006-0118), are partially explained.

Details

  • Original title: Visualization and mechanisms of pool boiling of propane, isobutane and their mixtures on enhanced tubes with re-entrant channels.
  • Record ID : 2006-0139
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 48 - n. 12
  • Publication date: 2005/05

Links


See other articles in this issue (3)
See the source

Indexing