Investigation of the Flexibility Potential by Decoupling Building Mass and Room Temperature
DOI:
https://doi.org/10.52825/isec.v1i.1165Keywords:
Thermally Activated Building Systems, Dynamic Building Simulation, Flexibility of Buildings, Room Temperature DecouplingAbstract
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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Copyright (c) 2024 David Schmitt, Tobias Reum, Thorsten Summ, Christoph Trinkl, Tobias Schrag
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Bundesministerium für Wirtschaft und Klimaschutz
Grant numbers 03EN1054A