| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Current Trends in Magnetocaloric Materials: An FMD Symposium in Honor of Ekkes Brueck
|
| Presentation Title |
Energy Harvesting Using Thermomagnetic Generators with Magnetocaloric Materials |
| Author(s) |
Anja Waske, Daniel Dzekan, Bruno Neumann, Dietmar Berger, Kai Sellschopp, Alexander Stork, Kornelius Nielsch, Sebastian Fähler |
| On-Site Speaker (Planned) |
Anja Waske |
| Abstract Scope |
To date, there are only very few technologies available for the conversion of low temperature waste heat to electricity. More than a century ago, thermomagnetic generators were proposed, which are based on a change of magnetization with temperature, switching a magnetic flux, which according to Faraday’s law induces a voltage. In this talk, we first describe the principle of thermomagnetic generators. Then we focus on the impact of topology of the magnetic circuit within thermomagnetic generators. We demonstrate that the key operational parameters strongly depend on the genus, i.e. the number of holes within the magnetic circuit. A pretzel-like topology of the magnetic circuit with genus =3 improves the performance of thermomagnetic generators by orders of magnitude. We will show that this technique is on its way to becoming competitive with thermoelectrics for energy harvesting near room temperature. |
| Proceedings Inclusion? |
Undecided |