Single-Phase Mass Transfer in Packed Beds

Single-Phase Mass Transfer in Packed Beds 

Equation 6.28 [8] can correlate well the data of many investigators for gas or liquid film mass transfer in packed beds for the ranges of (Re) from 10 to 2500, and of (Sc) from 1 to 10 000. 

The /-factors were first used by Colburn [7] for successful empirical correlations of heat and mass transfer data. The/-factor for heat transfer, J, was defined as 

Data acquired by many investigators have shown a close analogy between the rates of heat and mass transfer, not only in the case of packed beds but also in other cases, such as flow through and outside tubes, and flow along flat plates. In such cases, plots of the /-factors for heat and mass transfer against the Reynolds number produce almost identical curves. Consider, for example, the case of turbulent flow through tubes. Since 

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