A hybrid cooling system using radiational panel cooling with wind-induced cross ventilation in an office setting is investigated. The characteristics of the indoor environment are examined using CFD (computational fluid dynamics) simulation, which is coupled with radiation heat transfer simulation and with HVAC control in which the PMV value for the human model in the centre of the room is controlled to be at the set-point (target) value. The system is devised on an energy saving strategy that utilises stratified room air with a vertical temperature gradient. The air cooled by the radiational panel settles down within the lower part of the room, while the hot and humid outdoor air passes through the upper region of the room and sweeps out the heat and contaminants generated in the room.
Study on cross ventilation with radiational panel cooling for hot and humid regions.
Hong Kong, City University, Division of Building Science and Technology, 2001, proceedings of IAQVEC 2001, "Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Fourth International Conference", held Changsha, Hunan, China, 2-5 October, 2