cooling ceiling

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.

Ventilation is fundamental to indoor air quality. But what kind of ventilation, and how does one respond to heat gains? Nigel Aitkinson considers the issues.