Abstract
Magnetic refrigeration is a potentially environmentally-friendly alternative to vapour compression technology that is presented in this paper. The magnetocaloric effect in two magnetocaloric compounds in the La(Fe,Co,Si)13 series is presented in terms of their adiabatic temperature change and the specific heat as a function of temperature at constant magnetic field. A 2.5-dimensional numerical model of an active magnetic regenerative (AMR) refrigerator device is presented. The experimental AMR located at Risø DTU has been equipped with a parallel-plate based regenerator made of the two materials. Experimental zero heat-load temperature spans are presented for different operating conditions and the results are compared to predictions of the numerical model. It is concluded that the model reproduces the experimental tendencies and when including thermal parasitic losses to ambient and the predictions from the model are within 1.5 K of the experimental results.
| Original language | English |
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| Title of host publication | ExHFT-7 : 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics |
| Number of pages | 2458 |
| Publisher | AGH University of Science and Technology Press |
| Publication date | 2009 |
| Edition | 1 |
| Pages | 515-522 |
| ISBN (Print) | 978-83-7464-235-4 |
| Publication status | Published - 2009 |
| Event | 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics - Krakow, Poland Duration: 28 Jun 2009 → 3 Jul 2009 Conference number: 7 http://www.exhft-7.agh.edu.pl/ |
Conference
| Conference | 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics |
|---|---|
| Number | 7 |
| Country/Territory | Poland |
| City | Krakow |
| Period | 28/06/2009 → 03/07/2009 |
| Internet address |
Keywords
- active magnetic regeneration
- Magnetic refrigeration
- Fuel Cells and hydrogen
- magnetocaloric effect
- numerical modeling