Abstract:
Desert type Room Coolers are used in peak summer season for cooling in rooms, offices, hotels and restaurants etc. In general Air Coolers are used for cooling similar areas and desert coolers are used for larger area. Air Coolers basically consist of body, fan, water pump and control switch etc. An electric fan generally of exhaust fan type is mounted inside a louvered housing and three vertical sides of the housing are fitted with filtered pads which are kept wet with help of water pump. Rotation of fan mounted inside the body draws air from all the three sides through wet pads. Thus, air gets cooled by evaporation of water and which is blown into the room. Desert coolers are economical (both initial and running costs are low) and are effective in hot and dry areas. They are not effective in humid areas.
