DR

Thermally activated building systems (TABS) are gaining attention as a means of realizing comfort and energy efficiency in office spaces. TABS use the building mass for heat dissipation and the storage part of the building to save energy, improve comfort, and shift peak energy consumption. However, the thermal response is slow due to the large thermal capacity.

The mainstream of air-conditioning system for medium and small sized buildings is conditionally air mixing ventilation with ceiling cassette unit of packaged air conditioner (PAC), however, it may bring a high cold-draught risk to occupants, due to the direct drop of the supply air jet. To solve this problem, the air mixing ventilation system can be improved into an air based radiant air-conditioning system by stretching the non-flammable membrane under the ceiling with PAC, thus the cold-draught of PAC could be substantially eliminated and the indoor environment could be improved easily.