Modeling of desalination using tubular direct contact membrane distillation modules

A fully predictive mathematical model based on first principles of heat and mass transfer as well as vapor-liquid equilibrium was developed for desali nation application via tubular direct contact membrane distillation. The mo del took into account the temperature and the effect of concentration polar ization. The model's prediction in terms of distillate flux were validated with previously published experimental data for such process parameters as saline water and cooling water flow rates and temperatures, and feed salt c oncentration. The model's results agreed well with previously published exp erimental and theoretical work.