Overview of Existing Magnetocaloric Prototype Devices - Magnetocaloric Energy Conversion: From Theory to Applications - page 280

Table 7.8 Reciprocating device from the University of Ljubljana
Name and address of institute Laboratory for Refrigeration and District Energy,

Faculty of Mechanical Engineering, University
of Ljubljana, Askerceva 6, 1000 Ljubljana, Slovenia

Name of contact person/email Andrej Kitanovski/[e-mail]

Year of production 2011

Type Reciprocating

Maximum frequency 0.9 Hz

*

Maximum cooling power 7 W (with Gd), 6.2 W (with La Fe Co Si)

- - -

Maximum temperature span * 23.5 K (with Gd), * 20 K (with La - Fe - Co - Si)

Type of AMR Parallel plates, packed bed (spheres, particles, powder)

MC material(s) Gd, La Fe Co Si

- - -

Type of magnets Reciprocating Nd - Fe - B permanent magnet, 1.15 T

(ethylene glycol). In the rst experimental studies, six different AMR geometries

were tested, consisting of gadolinium. These were two AMRs with Gd plates
having a thickness of 0.25 mm. In the

rst AMR, the spacing between plates was
0.25 mm and the total mass of Gd was 130.9 g, whereas in the second one, the
spacing was 0.1 mm, with the total mass of Gd being 176.3 g. Both AMRs had
plates positioned parallel to the magnetic eld. Another AMR was built from

gadolinium, with the plate thickness of 0.25 mm and a spacing of 0.25 mm, and the