The TermoDeck® Principle
The effects of using the heat storage capacity of hollow core slabs varies between summer and winter conditions. Surplus heat, generated from body heat, lighting, computers, sun radiation, etc, can be stored in the slabs increasing their temperature by 2-3°C during the day without affecting the comfort of the occupants.
In the summer this excess heat is dissipated from the slabs by cooling the slabs with cool night air in temperate climates, or using conventional chillers in hot climates, but with up to a 50% reduction in cooling load when compared to conventional technologies. The fans keep running up to 24 hours a day.
In cold climates during winter we use the heat stored in the slabs overnight, to maintain comfortable internal conditions for the occupants the next day. In some hot climates, during winter, just using the cool night air, without the need for chillers, can cool the structure to provide comfortable conditions by the following morning.