Ventilation Control Strategies for Buildings with Hydronic Radiant Cooling in Hot Humid Climates

Publication Type

Conference Proceedings

LBNL Report Number



The paper describes the moisture control strategy used in the case of a multi-story office building located in a hot humid climate and estimates the energy consumed to dehumidify the ventilation air to avoid condensation. The results show that, in order to achieve a comfortable and stable environment from both thermal and humidity perspectives, the ventilation (and dehumidification) system of the building should be operated 24 h/day. If high variations in the relative humidity are acceptable, important energy savings can be achieved by switching off the ventilation system at night. When compared to an all-air system, the use of the hydronic radiant system for conditioning in a hot humid climate provides similar indoor comfort conditions and requires less energy and peak power to operate.

Conference Name

Proceedings of the RoomVent 1996, Yokohama, Japan

Year of Publication



Institute of Industrial Science, University of Tokyo, Tokyo, Japan