This paper objective is to analyze by simulations, the thermal comfort and energy consumption when using a radiant cooling ceiling. For this study we have used the simulation energy tool called Trnsys in order to simulate the system for an office building. Sensible and latent loads were simulated in the office representing a real day situation. Knowing that the cooling system is sensible to the risk of condensation a control-system was used during the simulations to completely avoid this risk. Several simulations were done for different climates in Europe to better see and understand in which cases the system could be applied and what are the effects on the thermal comfort. As a conclusion the system could be an attractive alternative to the classical cooling systems, thought its good effects on the thermal comfort and energy reduction, this system is more recommended for a dry climate or to be used with a dehumidification air system. The simulations has prove that the system can reduce with more than 8°C the air temperature by comparison with the case without any cooling system and in the same time without ant condensation risks on the chilled surface of the system.
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