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A graphical approach to heat and mass exchange between gas and granular solid

Stanislaw Sieniutycz
A graphical approach to energy and mass exchange in drying-moistening systems is proposed. Advantages of graphical techniques are shown for evaporation-condensation processes in systems with complex gassolid equilibria, variable gas states, and state dependent properties. Graphical methods are developed for
processes with granular solids: drying of single grain, drying in fluidized beds and drying in co- and countercurrent gas-solid flows. Drying time is attributed to each point of a process path in enthalpy chart. Establishment of wet bulb temperature and other asymptotic
states are interpreted. Common treatment of graphical solutions and experiments is provided for each drying/moistening period. Unified description of drying operations in all drying periods is achieved.
CYBERNETICS AND PHYSICS, Vol. 4, No. 4. 2015, 116–133.
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