...%. Therefore, the effect of thermal cycling in the thermal conductivity can be considered as rather small and limited to the very first treatments. In the range of 600–1000 °C of higher levels of solar concentration, the sensible heat can be considered as constant and roughly equal to 1025 J/(kg K...

...Doerte Laing; Dorothea Lehmann; Michael Fiß; Carsten Bahl Efficient energy storage is vital to the success of solar thermal power generation and industrial waste heat recovery. A sensible heat storage system using concrete as the storage material has been developed by the German building company Ed...