Heat Flow

First offshore use of new heat flow probe (demonstrator)

Since October 2023, FIELAX GmbH has been working on the development of a new heat flow probe in a project funded by the Federal Ministry for Economic Affairs and Energy as part of the “Maritime Research Program” funding measure. This is to be used primarily to determine thermal conductivity in marine sediments along cable routes for offshore wind farms or interconnectors, i.e. power lines connecting several countries. The thermal conductivities are used, among other things, for the dimensioning of the power cables. FIELAX GmbH has many years of experience in this field, so that existing practical and theoretical company know-how can be used to make this technology fit for the future. This includes in particular the use of modern hardware and software components for data acquisition, which make the technology so robust and powerful that simple, fast and successful offshore use can be guaranteed. Read more

Project InsiSt completed

IThe ‘InsiSt’ project, funded by the State of Bremen as part of the State Programme for the Promotion of Research, Development and Innovation (FEI) of the Senator for Economic Affairs, Labour and Europe of the Free Hanseatic City of Bremen, was completed this month. The aim of this project was to prove that the method for in-situ measurements of thermal conductivites improved by FIELAX is comparable to the established standard according to ASTM D5334. To this end, experiments were carried out in which so-called needle probes were inserted into the same undisturbed sample as the sensor string used by FIELAX. The measurements were carried out in different materials: 1. in water-saturated sand and 2. in water “stiffened” with gelatine.The results are currently being prepared for publication.

New publication on the variability of thermal conductivities

As part of the project "WEGNordOst", which 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, we have published some of the results together with our cooperation partners from the University of Bremen and the University of Kiel. The publication is available at: https://link.springer.com/article/10.1007/s11001-023-09531-2 and describes the sediment temperatures and thermal conductivities of coastal sediments in the German part of the Baltic Sea / Eckernförde Bay.