An alternate system uses a fog or great mist injected in to the intake 
air stream. Although many commercial systems can be found, growers can assemble and set up their own system utilizing a ruthless piston pump and fog nozzles. The essential components are shown in Fig. 1. A two-stage system managed by a two- stage thermostat enables more water to be applied on excessively warm, shiny days. Temperature settings ought to be 5-10°F apart.
Algae development in the pads may become a problem that may reduce the effectiveness of the machine and result in accelerated deterioration of the pads. The addition of an algaecide to the water supply will help in control.
It really is desirable, especially in hard drinking water areas, to add a wetting agent to the drinking water to obtain more uniform wetting of the pads. A commercial material or liquid home detergent at the rate of 2 tablespoons per 100 gallons can be used.
Water for the pads should be clean and lower in mineral content to avoid clogging and coating of the pads. A pump, pipes and gutters are used to recirculate the drinking water. A flow rate 113 gallon each and every minute per linear foot of pad system ought to be provided to assure adequate wetting.
In the most typical cooling system (fan and pad), the fans draw air through wet pads that prolong the length of 1 endwall or sidewall. Aspen and coated cellulose are common pad materials that always have life of 1 to 3 years. Approximately one sq . foot of pad are is needed for 20 square ft of floor area.
Would you like even more information on Greenhouse Auto Vent? Call us today.