When the outside temperature falls below the inside
temperature, the cold and moist air that enters a heated building becomes hot
and dry.
This happens due to an incident by which balance is established
between the moisture in the objects inside the building and in the air that
these are in contact with.The reduction in the moisture in the air may cause well known problems, such as:
- dryness of the upper airways;
- cracks in wooden structures;
- electrostatic discharges.
Air-conditioning or refrigeration systems may also cause an increase in the dryness of the air, as they cool the air below its dew point, remove moisture (dehumidification) and subsequently reheat the air.
dew point: this is the temperature
that air must reach (while maintaining a constant pressure and humidity) for the
moisture to condense (saturation).dehumidification: process by which the moisture in the air can be decreased or removed
By adding a commercial humidifier to the system, this problem can be overcome quite simply. Either add the steam produced by the humidifier to the air handling system, or install the humidifier with a fan distribution unit directly in to the room that needs the extra humidity - problem solved.
