Modeling of thermal gradient effect on reverse osmosis process

In the present study modeling and formulation of thermal gradient effect on reverse osmosis process for evaluation treated water penetration and water production are studied. modeling is done by MATLAB using Solution-Diffusion model. At present work the effect of two different parameters (temperature difference gradient and salt concentration) on different parameters is studied. Studying on important parameters for temperature driven reverse osmosis, shows the direct effect of temperature difference between permeate-water part and saline water part on different parameters. On temperature driven reverse osmosis, temperature difference between permeate-water part and saline-water part acts as a driving force. penetration rate at each salt concentration rises by increasing temperature difference between permeate-water part and saline-water part. The variations of different parameters versus temperature difference for two different saline water part concentrations (1 gr/lit and 0.35 gr/lit) are presented. For 1 gr/lit salt concentration and 1.5, 2.5 and 10.8 OC temperature difference between permeate-water part and saline-water part, treated water penetrations are obtained 0.9, 0.9545 and 1.3118 l/m2.h.bar respectively. Also, for 0.35 gr/lit salt concentration and 1.5 and 9.3 OC temperature difference between permeate-water part and saline-water part, treated water penetrations are obtained 0.917 and 1.167 l/m2.h.bar respectively.