Dynamic simulation regarding the condensation risk on a cooling ceiling installed in an office room

Ceiling radiant cooling with its many advantages on thermal comfort or energy reduction, didn’t become a leader in this domain because of the fear of condensation on the chilled surface of the ceiling, especially in hot and humid climates. Using the building simulation code named Trnsys we have been able to simulate the risk of condensation on a cooling ceiling installed in an office room for different France climates. The problem underlying the current paper was to investigate the control system to be used to completely avoid the condensation risk and to see the effect of the ventilation rate on the radiant ceiling performances. As a conclusion, even though the system has more potential in temperate climate, it was also observed, as the simulations indicated, that the system is still able to ensure acceptable indoor conditions even in a hot and humid climate without any condensation on the cold surface of the ceiling.