Share

IIR document

Low temperature paraffin phase change emulsions.

Author(s) : HUANG L., DOETSCH C., POLLERBERG C.

Summary

The experimental results show that the emulsions have a high energy density and little subcooling. They are stable both over a long-term storage period and under thermal-mechanical loads, although some changes in the droplet size distribution and in the phase change temperature were observed after the designed freezing/melting cycles in a pumped test rig. However, the emulsions have a wide phase change temperature range due to the used paraffin blends. Beneficial paraffins with a sharp phase transition temperature range and a high latent heat capacity should be developed. In addition, the emulsions have a higher viscosity than water which will cause a higher pressure drop in practical applications. The samples presented in the paper were prepared with a thickener to reduce creaming. Since creaming does not result in a growth in the droplet size, the thickener is not necessary when the emulsions are applied in pump systems and thus the viscosity is reduced.

Available documents

Format PDF

Pages: 2009-4

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: Low temperature paraffin phase change emulsions.
  • Record ID : 2009-1669
  • Languages: English
  • Source: 8th Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
  • Publication date: 2009/06/03

Links


See other articles from the proceedings (27)
See the conference proceedings

Indexing