| タイトル | Magnetic heat pumping near room temperature |
| 著者（英） | Brown, G. V. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1976-08-01 |
| 言語 | eng |
| 内容記述 | It is shown that magnetic heat pumping can be made practical at room temperature by using a ferromagnetic material with a Curie point at or near operating temperature and an appropriate regenerative thermodynamic cycle. Measurements are performed which show that gadolinium is a resonable working material and it is found that the application of a 7-T magnetic field to gadolinium at the Curie point (293 K) causes a heat release of 4 kJ/kg under isothermal conditions or a temperature rise of 14 K under adiabatic conditions. A regeneration technique can be used to lift the load of the lattice and electronic heat capacities off the magnetic system in order to span a reasonable temperature difference and to pump as much entropy per cycle as possible |
| NASA分類 | THERMODYNAMICS AND STATISTICAL PHYSICS |
| レポートNO | 76A40076 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/442355 |
