Share

IIR document

Space-and time-resolved interferometric measurements of the thermal boundary layer at a periodically magnetized gadolinium plate.

Author(s) : LEI Z., YANG X., HABERSTROH C., et al.

Type of article: Article, IJR article

Summary

By means of a Mach-Zehnder interferometer we examine the transient dynamics of heat transfer from two periodically magnetized gadolinium (Gd) plates into a heat transfer fluid (n-decane). We demonstrate that the propagation of the thermal fronts emanating from the Gd plates after magnetization or demagnetization obeys a View the MathML sourcet-dependence. A finite time required for magnetization and demagnetization causes a spatially delayed propagation of the thermal fronts. The diffusive heat flux, derived from the temperature profiles, experiences a drop down by about 80% after first 3 s while the percentage of thermal energy transferred into n-decane experiences a maximum there. Although limited to heat transfer into a stagnant fluid, the present works provides reasons for lower bounds of geometry and operation frequency of a simplified parallel-plate structure in the diffusive limit. In this way, the results are instructive for an efficient design of a parallel-plate magnetic regenerator with forced convection.

Available documents

Format PDF

Pages: 246-255

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: Space-and time-resolved interferometric measurements of the thermal boundary layer at a periodically magnetized gadolinium plate.
  • Record ID : 30015199
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 56
  • Publication date: 2015/08

Links


See other articles in this issue (21)
See the source

Indexing