CALCULATION OF OXYGEN-TRANSFER RATE COEFFICIENT WITH OFFICE EQUIPMENT

The aim of this paper is to show an implementation of the calculation of one of the important characteristics (K(L)a) of gas-liquid mass tra nsfer. In the program developed the so-called moment method is used an d both step change and aeration responses are available in the form of curves of recorder outputs. The improper integral of the moment metho d can be evaluated by scanning the outputs by a colour scanner (easily accessible nowadays in everyday office practice). By using this progr am a simple communication is established on a Windows basis.