Mass transfer from a highly soluble single cylinder in parallel flow

Abstract

This work deals with the study of mass transfer rates from single cylinders of oxalic, succinic and boric acids placed in parallel flowing water stream. Due to high dissolution rates of acids, the surface area of the cylinder is continually changing with time and cannot be assumed constant. The hydrodynamic regimes through which mass transfer takes place from a cylinder are divided into three regions: (i) transfer from the bottom surface of the cylinder; (ii) transfer from the lateral surface; and (iii) transfer from the top surface. In the present work, appropriate correlations have been obtained experimentally for each of these cases, together with the overall mass transfer. The predictive equations proposed herein enable calculation of the overall mass transfer coefficient in a new application with an acceptable level of accuracy.