This reduction in porosity decreases the gas velocity, increases the pressure drop and changes the value of mass transfer co-efficient. Liquid holdup in the column increases the weight of column and also reduces the effective porosity of packing. It is a packed column packed with Raschig Rings where the Air is counter currently fed to column. The water is fed from the top of the column and loading & flooding characteristic are observed on various flow rates of Air and Water.

Utilities Required:-

•  Water Supply and Drain.

•  Electricity 500 watts, 220 V, 1 Phase.

•  Compressed Air Supply at 2 Bar, 2.5 CFM.

•  Floor Area 0.75 m x 0.75 m.