DIRECT EVAPORATIVE AIR COOLING TECHNOLOGY
DIRECT EVAPORATIVE AIR COOLING TECHNOLOGY
PRODUCT DESCRIPTION
An Evaporative Air Cooling System is an economical substitute for Air-conditioning System to provide comfortable environment in places where dry and hot climatic Conditions prevail. There occurs no effective heat transfer from air in absolute terms, but it is only transformation of sensible heat energy of air into latent heat and as a result the dry bulb temperature of air reduces.
When the dry and hot fresh atmospheric air passes through cellulose fill chamber or atomized spray of water through nozzles , the dense atomized/ water particles evaporate drawing the required heat energy for evaporation from the air stream as a result of which the dry bulb temperature drops substantially. However, as the water so evaporated is absorbed by the same mass of air the total heat energy content (enthalpy) of air remains unchanged, and it is essentially an adiabatic process as per the thermodynamic terminology.
The greater cooling effect of an evaporative Air Cooling system is felt, largely when the following conditions are available.
1. Draft of cooled (humidified) air is directed over to the body of the workman, or in the working zone.
2. The stale air from the air cooled space is exhausted positively to the atmosphere outside using exhaust Fans. (This however holds goods if the sensible heat is less than 80%) or specially designed exhaustair damper.
3. Outside atmospheric conditions are of high Temperature and relatively low humidity.