52—THE DRYING OF CONTINUOUS TOW BY FORCED CONVECTION DURING THE FALLING-RATE PERIOD

Abstract

The well-known drying equation is regarded as empirical. An argument is developed to show that in certain circumstances, such as fibre-drying, it has a sound basis, and experimental results from a continuous-flow dryer support this. Thus, when the mass-transfer coefficient from drying surface to gas stream may be evaluated, and data on equilibrium moisture contents at a range of humidities are available, the drying time may be calculated for the falling-rate period.