Investigation of the Flexibility Potential by Decoupling Building Mass and Room Temperature




Thermally Activated Building Systems, Dynamic Building Simulation, Flexibility of Buildings, Room Temperature Decoupling


Using the thermal building mass as a thermal storage received increasing attention in research during recent years. Due to the large mass of concrete, it offers a large storage capacity and thus a high potential for flexibility. However, passive heat losses during cool down of a thermally activated building influence room temperature and thus limit its flexibility potential. In this contribution a multi-layer activation concept was investigated which thermally decouples the building mass and room air. The study aims to analyse the cool down of a thermally activated building in terms of different charging parameters while considering other heat sources such as solar gains. A dynamic building simulation of a demonstration building was set-up and compared to simulative studies from literature to proof the validity of its dynamic behaviour. In the simulation model the room temperature could be kept above 19 °C between 100 - 190 h. However, when charging the building structure quickly, room temperatures above 24 °C are reached easily. Considering other heat sources such as solar gains, advanced control algorithms are required for efficient operation of the heating system.


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How to Cite

Schmitt, D., Reum, T., Summ, T., Trinkl, C., & Schrag, T. (2024). Investigation of the Flexibility Potential by Decoupling Building Mass and Room Temperature. International Sustainable Energy Conference - Proceedings, 1.

Conference Proceedings Volume


Energy Flexibility through Sector Coupling

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