Washing the Air
As the air is drawn into the buildings by the plenum fan it is passed through a chamber where it is washed. This is done by forcing the air through a spray of water. A water curtain is formed by forcing water through perforated pipes placed across the chamber from each other and the water thus sprayed made to intercept. As the air passes through this curtain of water many of the impurities such as dust, cinders, bacteria, some of the gases, particles of decomposition, and epithelial cells, are removed. Washing does not remove carbon dioxide or bodily odors. Washing is one of Nature’s methods of cleaning the air as is seen in rain.
Central heating with washed air.
After the air is washed it is passed over tempering coils. In the winter the air is warmed and in the summer it is cooled in this way. The humidity is also controlled. It can thus be seen that this method, although rather expensive, is the only real method of ventilating large buildings satisfactorily.
CHAPTER V
HEATING
HEATING
GENERAL CONSIDERATIONS
Heat from Hygienic Standpoint
Combustion
Molecular Theory
Body Heat
HOW MAINTAINED AT CONSTANT TEMPERATURE
INFLUENCE OF BODY HEAT ON HOUSE AIR
INFLUENCE OF TEMPERATURE ON AIR OF BODY
Proper Temperature of Buildings
Requirements for Heating System
LOCAL HEATING
Radiation
PRINCIPLE OF
OPEN FIRE
OBJECTION TO
Conduction
HEATING BY STOVE
OBJECTION TO
CENTRAL HEATING
Convection
CENTRAL
HOT AIR
HOT WATER
STEAM
CHAPTER V
HEATING