Share

IIR document

Storage devices for heat exchangers with phase change.

Author(s) : LÖFFLER M. K., GRIESSBAUM N.

Type of article: Article, IJR article

Summary

Heat exchangers with phase-change achieve minimal dissipation when there is only a small temperature difference between the inlet and the outlet on the side of the sensible heat transfer medium. However, this does not usually occur in applications where these heat exchangers are typically used. In order to overcome this issue, an innovative prototype heat pump was realised. The heat pump was equipped with switchable storage devices to adapt the high temperature difference of the application to small temperature differences in the condenser. This way, the dissipation in the condenser was minimised, which led to COP increases by reducing the required mean pressure in the condenser. The use of storage devices resulted in measured efficiency improvements of 10%–50% in the prototype. With the described set-up, it is possible to approach the maximal thermodynamically possible COP, which makes an adaptation of the theoretical assessment of heat pumps necessary.

Available documents

Format PDF

Pages: 189-196

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: Storage devices for heat exchangers with phase change.
  • Record ID : 30011948
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 44
  • Publication date: 2014/08

Links


See other articles in this issue (18)
See the source

Indexing