Chemical Engineering Communications, Vol.191, No.2, 208-219, 2004
Natural convective mass transfer at a horizontal annular square duct
Free convection mass transfer rates at the outer surface of the inner duct of a horizontal square annular duct were measured by an electrochemical technique that involved measuring the limiting current of the cathodic deposition of copper from acidified copper sulphate solution. Physical properties of the solution and equivalent diameter of the annular duct were varied to provide Sc.Ga range of 1.1x10(11)-3.3x10(12) which corresponds to 4.05x10(8)