Energy transition at FIELAX – Installation of heat pumps

After FIELAX has already been using its own solar power since 2019, another step has now been taken on the way to climate neutrality. Most of the offices and the workshop are now heated with air-to-air heat pumps. On very hot days, the devices can of course also be used for air cooling (then there should be enough solar power available). An additional extension of the photovoltaic system is planned for coming fall.We would like to thank the companies Peters Kälte - Klima - Lüftung (www.peters-kkl.de) and H&H Wührmann (www.wuehrmann.de) for the good planning and timely execution of the installation.

WEGNordOst – Update

As part of the "WEGNordOst" project, which is funded by the state of Bremen under the state program "Promotion of Research, Development and Innovation" (FEI) of the Senator for Economics, Labor and Europe of the Free Hanseatic City of Bremen, we are investigating the interaction between temperature and thermal conductivity in gas-bearing sediments. For this purpose, we conducted measurements in the Eckernförde Bay (Baltic Sea) with the research vessel ALKOR in November 2022 and April 2023. We were able to collect a lot of interesting data, the analysis of which will keep us busy for a while. Read more

Feedback between Temperature and Thermal Conductivity

In general, thermal conductivity is regarded as a material constant. However, as a result of strong heating or strong cooling, changes in the state of the materials can occur which also influence their thermal properties. In particular, gases generally have much lower thermal conductivities than liquids (see e.g. here: https://www.thermal-engineering.org/what-is-thermal-conductivity-of-water-and-steam-definition/). Such processes could lead to changes in the thermal properties of gas-bearing sediments in the offshore area as a result of both natural and anthropogenic influences. Reduced thermal conductivity due to increased gas content in the sediment could thereby prove problematic for the installation of offshore energy cables. This project is funded by the state of Bremen within the framework of the state program "Promotion of Research, Development and Innovation" (FEI) of the Senator for Economics, Labor and Europe of the Free Hanseatic City of Bremen.