초록 ▼

A pair of variable air volume fans and a set of primary and exhaust air diffusers are in atmospheric communication between a supply of ventilation air that employs the principles of thermal displacement ventilation for purging a designated smoking area of smoke pollutants and the outside atmosphere

A pair of variable air volume fans and a set of primary and exhaust air diffusers are in atmospheric communication between a supply of ventilation air that employs the principles of thermal displacement ventilation for purging a designated smoking area of smoke pollutants and the outside atmosphere for receiving the purged polluted air. The volume of ventilation air supplied to the designated area and the volume of air exhausted from the designated area is based upon air quality demand requirements and is determined by a microprocessor coupled to a gas sensor disposed within the designated smoking area.

대표청구항 ▼

[ What is claimed is:] [1.] A method of controlling the discharge of pollutant in a designated space within a structure having a floor upon demand, comprising:introducing low temperature air at the floor of the space;exhausting the air from a high level within the space to the outside atmosphere at

[ What is claimed is:] [1.] A method of controlling the discharge of pollutant in a designated space within a structure having a floor upon demand, comprising:introducing low temperature air at the floor of the space;exhausting the air from a high level within the space to the outside atmosphere at an optimum rate;detecting the presence of pollutants in the air within the designated space to help facilitate air displacement within the space based upon air quality demand requirements;increasing the flowing of the low temperature air when the air quality decreases below a predetermined reference level toward a maximum speed and modulating the exhaust air proportionally so that the atmospheric pressure within the space is maintained at a negative pressure relative to adjacent areas to facilitate exhausting the polluted air with substantially no polluted air being returned to the structure outside of the designated space, and so that a sufficient volume of cool ventilation air is discharged into the space at about floor level to cause the air in the space to be displaced upwardly so that the polluted air rises and is exhausted from a high level of the space into the outside atmosphere.