The integration of the PTC and Fresnel solar fields into the whole FRIENDSHIP solution is progressing at a good pace! The BoP (Balance of Plant), P&ID (Piping and Instrumentation Diagram), and BOM (Bill of Materials) for the different types of collectors, as well as the first concepts for their sizing and energy simulations have all been precisely defined. Discussions between partners are ongoing, to adapt these elements to different user cases and select the best HTF (Heat Transfer fluid) – for nanoparticles based HTFs, please refer to this article.
One of the key aspects to enhance the output of the solar fields is to produce better coatings: a kind of material able to absorb the solar rays and transfer the heat to the HTF. Several types of absorber coatings are studied, as you can see in the picture below: ageing studies, as well as absorptivity measurements, are being made by Absolicon, CEA and NIC.