NUMERICAL AND EXPERIMENTAL RESULTS FOR COUPLED HEAT AND MASS-TRANSFERBETWEEN A DESICCANT FILM AND AIR IN CROSS-FLOW

Heat and mass transfer with a uniformly distributed falling liquid des iccant film in a cross-flow parallel plate gas-liquid heat exchanger i s predicted, and the results compared with experiment. The process air is in cross-flow over the desiccant film. Refrigerant flows through t he heat exchanger tubes and removes the heat of absorption for dehumid ification and supplies the heat for regeneration. The governing equati ons, boundary conditions, and interfacial equilibrium conditions for t he concentration, temperature and pressure are presented. The problem is more complex than for cocurrent or countercurrent flow, as it is fu lly three-dimensional.