Seasonal hot water heat store with self-supporting shell cover

Abstract

A new self-supporting cover for seasonal hot water stores has been developed. It is installed at the Institute of Thermodynamics and Thermal Engineering (ITW) as shell cover with prefabricated sandwich elements made of high-performance concrete with PUR core. Due to the significantly higher strength of the high-performance concrete very thin units can be produced. In contrast to conventional self-supporting covers for the construction no scaffolding and hence no foundation is required. Reduced material usage and consequently reduced primary energy demand for construction is a further advantage of this concept.