In this project, we will show that thermomagnetic energy harvesting can be an energy-efficient and compact technology capable of addressing existing and future power generation challenges. Special attention will be paid to the utilization of various low-grade heat sources from a minimum of 40 to a maximum of 100 °C, which account for about 40 % of waste heat from industrial processes. For these, especially below 60-80°C, there is a lack of available, scalable, cost-effective, and energy-efficient technologies for the conversion of waste heat into electricity.

The final aim of this project is to investigate various designs of a low-temperature, high-frequency, and regenerative thermomagnetic generator of power up to 100 W and, based on the analysis, to realize a demonstration device that can be used to experimentally confirm the concept, and evaluate the operation under different operating conditions. The specific goals for the project are:

1. The thermomagnetic generator can operate with a power of up to 100 W in the temperature range between 40°C and 80°C, achieving an exergy efficiency of over 10%.
2. The regenerator of the thermomagnetic generator enables operation at frequencies of up to 25 Hz and at the same time ensures significantly lower viscous losses compared to existing active magnetic regenerators.