Share

Recommended by the IIR / IIR document

Melting of PCM: correlations for natural convection onset.

Number: 1956

Author(s) : AZAD M., GROULX D., DONALDSON A.

Summary

The melting of an initially solid phase change material (PCM) starts with conduction heat transfer that continues when the PCM starts melting. Natural convection in the melted PCM will take over conduction eventually. The question this paper answers is when and under what conditions is the onset of natural convection during melting happening? An experimental study was performed, in a cylindrical system, looking at the impact of the central heat source diameter, the initial PCM temperature and the heat source temperature, for two PCMs, on the required melted PCM volume and time for the heat transfer mode to transitioned from conduction to natural convection in the liquid PCM. From the experimental determination of the natural convection onset conditions, general correlations were obtained that predict the required volume of liquid PCM required for natural convection to start during the melting of a PCM.

Available documents

Format PDF

Pages: 8

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Melting of PCM: correlations for natural convection onset.
  • Record ID : 30028855
  • Languages: English
  • Subject: Technology
  • Source: 13rd IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: (online) Vicenza, Italy, September 1-3, 2021.
  • Publication date: 2021/09/01
  • DOI: http://dx.doi.org/10.18462/iir.PCM.2021.1956
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (49)
See the conference proceedings

Indexing