Experimental Study of Counter Flow Air Dehumidifier for Different Packing Heights

Dehumidification is the process of removing the water vapour from the air. The outside humid air consists of sensible heat load and latent heat load [1]. In conventional system the dehumidification is done by vapour compression system. The sensible heat of the air is removed by reducing the temperature of the air but the latent heat load is removed by cooling the air below dew point temperature. The disadvantage associated with vapour compression system is that it is an insufficient thermodynamic process and it requires the air to be cooled below its dew point, which lowers the temperature than needed to meet the sensible heat load. Thus, some source of additional energy is required to reheat the air to the desired delivery temperature. Also use of CFC’s in refrigeration and air-conditioning applications results into ozone layer depletion and global warming which is a very serious problem.