Fog Humidification: Fact And Retrofits (December 2000)
Each year as winter rolls around, it is the same old story - mothers bundle up little children, pharmaceutical companies spend millions running ads promoting the "cold and flu season," and human resources directors struggle to cope with massive amounts of absenteeism. While science may some day come up with a cure for the common cold, hvac engineers can do something to mitigate the problem right now without having to wait for a medical miracle: install a humidification system.
Although more and more companies and building managers are including humidification equipment as part of their hvac system specs in new construction, a retrofit on an existing system presents unique problems. This article examines what makes up a fog humidification system, how it should be engineered for optimum efficiency, and some of the challenges involved with retrofitting an hvac system with high-pressure fog.