Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
NUMERICAL EVALUATION OF THE INFLUENCE OF OPERATIONAL PARAMETERS ON THE ADSORTION DESALINATION SYSTEM PERFORMANCE
Submission Author:
Roberto Marçal , GO , Brazil
Co-Authors:
Roberto Marçal, Mario Benjamim Baptista de Siqueira
Presenter: Roberto Marçal
doi://10.26678/ABCM.COBEM2021.COB2021-1512
Abstract
Desalination processes based on adsorption cycles (AD/ADC) is attracting increasing attention due to their ability to co-generate two useful effects, the production of drinking water and cooling from the use of low-intensity thermal sources (solar). This work presents the results of a numerical and thermodynamic study of a simple bed adsorption desalination system using thermal energy from flat solar collectors. The evaluated system consists of three main components, the reactor with adsorptive bed loaded with silica gel, evaporator and a condenser that can be configured for desalination or desalination with refrigeration. In the simulation the configuration adopted was of the system in desalination with refrigeration, using a bed with 7 Kg of Fuji Davidson RD 2560 silica gel and the parameters evaluated with their respective impacts on the performance indexes were; the cycle time varying from 0-1500 s, the temperature of the thermal source from 55-85 °C and the cooling system varying from 15-30 °C. The maximum values obtained for COP, SWP (Specific Water Production) and SCP (Specific Cooling Power), were 0.45, 4.1 kg⁄kg silica gel, 245.3 W⁄kg silica gel respectively. The results obtained indicate that this technology presents a cycle compatible with other technologies.
Keywords
Adsorption, desalination, Sílica Gel, solar desalination
