Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
STUDY OF THE FLUID DYNAMIC BEHAVIOR OF THE DESALINATION PROCESS BY REVERSE OSMOSIS FOR DIFFERENT SPACER GEOMETRIES
Submission Author:
GILSOMARO BARBOSA DE MELO SILVA Gil , RN , Brazil
Co-Authors:
GILSOMARO BARBOSA DE MELO SILVA Gil, Francisco Samuel Chaves, Diego Diniz, Jackson Simoes
Presenter: GILSOMARO BARBOSA DE MELO SILVA Gil
doi://10.26678/ABCM.COBEM2023.COB2023-2039
Abstract
The scarcity of water is a problem that has affected humanity for decades and, in recent years, has been getting worse, even more so with global warming, population growth and droughts. Therefore, desalination processes began to be seen as important alternatives for the production of drinking water around the world. For this finally, several technologies are used for the desalination of brackish water to happen, among these techniques Desalination by membrane separation processes via reverse osmosis (RO) stands out, a technology promising, considering that it is a simple process and presents low investment. However, the disadvantage that there is in its use is the sensitivity of the membrane to fouling. In this context, the objective of this work was define a computational model capable of understanding the behavior of the reverse osmosis process. O mathematical model used to carry out the simulations was based on mass conservation equations, movement, species transport and Spiegler and Kedem's model. All simulations were performed using the ANSYS FLUENT 15.0 software and ICEM CFD for creation of the geometry and of the mesh. The simulation results showed a good representation of the transfer phenomena involved in the reverse osmosis separation process, moreover, these results enabled a detailed analysis of the behavior of a fluid under the effects of turbulence promoters in the flow channel to be permeated. Finally, when analyzing these parameters in the geometries studied, it was observed that the spacers of the circular type had better process performances.
Keywords
Reverse osmosis., Desalination., Turbulence promoters.
