Kühldeckensystem mit Aktivierung der Speichermasse der Betondecke

Suspended radiant cooling system with thermally activated concrete ceiling.

Office buildings are heated and cooled by thermoactive building systems for many years. These energy efficient heating and cooling concepts provide excellent thermal comfort. The first systems were installed as suspended cooling ceilings which are applied all-over Europe and go along with a high user satisfaction. Another widely adopted construction principle is the concrete conditioning. Monitoring campaigns in energy efficient office buildings show clearly that radiant systems can be successfully operated for both cooling and heating. Although both the radiant ceiling and the concrete core conditioning use the same long-wave radiative heat transfer the operation is different due to the thermal storage effect. Architects and HVAC planners have to decide for one of these solutions based on the pros and cons for each system. This article presents a hybrid form which can be used for new buildings and refurbishment projects. Laboratory measurements in a thermally heavy test chamber prove the thermal performance of a double-sided suspended radiant panel in interaction with the concrete ceiling.