Magnetic refrigeration is an emerging technology that has the potential to significantly
reduce the energy consumption in the refrigeration sector. The technology relies on the
heating and cooling of magnetic materials upon the application and removal of a
magnetic field, respectively. This magnetocaloric effect is inherent to all magnetic
materials, but manifests itself stronger in some materials. The thermodynamically
reversible nature of the magnetocaloric effect holds out the promise of a more energy
efficient method of refrigeration compared to conventional compressor technology.
Coupling this with an absence of ozone depleting and greenhouse contributing gasses
gives magnetic refrigeration the potential to become an environmentally sustainable
The magnetic refrigeration group at Risø DTU aims to demonstrate the technology in a
prototype magnetic refrigeration device. Our work spans a wide range of scientific and
technological areas. At the pure science end there is the development and understanding
of new magnetocaloric materials, while the design and implementation of a prototype
device along with the processing of materials is at the technological engineering end.
Tying the work together are advanced numerical computer models of the individual parts
of the prototype. A simple yet versatile test machine located at Risø DTU is used to test
and characterise new materials and to test the design, configuration and operating
conditions relevant for a prototype device, while ensuring understanding through
consistency with the numerical models.
|Conference||Risø International Energy Conference 2009|
|Period||14/09/2009 → 16/09/2009|
|Series||Denmark. Forskningscenter Risoe. Risoe-R|
- Magnetic refrigeration
- Fuel Cells and hydrogen