Intrinsic viscosities, condition for the transition from particle to network solution (critical molecular weight), viscoelastic properties, and drag reduction have been studied for polyethylene oxide in water which is widely used in industrial applications.
This research suggests a simple system to study the hydrodynamics in a bubble column reactor and measuring gas-liquid specific interfacial area a, individual mass transfer coefficient k,gas holdup ε , flow regime, bubble size distribution, coalescence of bubbles, and bubble rising velocity for a single bubble by using image processing techniques.G Images and movies were taken by a digital camera and then analyzed in MATLABR2008a to extract the required data need to obtain the design parameters for bubble columns from special equations.
Experimental investigation of the mass transfer characteristics of – water system falling film in spiral tubes has been done. Several experiments were performed on the average mass transfer liquid film
