Counter-current Flow Limitation of Gas-Liquid Two phase Flow in Nearly Horizontal Pipe

Experimental on the work counter current two phase flow of air and gas in nearly horizontal flows have been performed. The experiments are conducted with 50 mm inner diameter pipe, in two inclination angle setting (20° and 10° from horizontal) and smooth liquid and air inlet i.e. a porous liquid inlet and a nozzle connected with calm section for gas inlet. The effect of liquid properties are examined by using five different working fluids (Water, two different concentration of butanol and glycerin aqua solutions). As results, (1) CCFL causes a drastic change in the delivered liquid to the lower plenum. (2) The effect of inclination angle is significantly observed. The flooding gas superficial velocity needed decreases with inclination angle. (3) The liquid viscosity affects the flooding phenomena.