Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
FIRST-ORDER CONSTRUCT OF A MINERAL CARBONATION SYSTEM FOR POST-COMBUSTION CARBON CAPTURE
Submission Author:
Claudia Luiza Manfredi Gasparovic , PR
Co-Authors:
Claudia Luiza Manfredi Gasparovic, George Stanescu, Marcelo Risso Errera
Presenter: Claudia Luiza Manfredi Gasparovic
doi://10.26678/ABCM.COBEM2021.COB2021-2004
Abstract
This paper aims to address the constructal design of a Mineral Carbonation reactor for CO2 capture. This will be achieved by applying the constructal method to the process’ degrees of freedom of the geometric scales of the first construct, and studying the effect on merit figures such as rate of CO2 captured and pressure losses under global restrictions such as fixed reactor and substract volumes, using analytical and numerical models of the process. We formulate the Constructal problem of the First Construct by identifying that for the restriction of fixed m ̇_1, A1, and W, the construct presents four degrees of freedom (DoF). We choose to address these DoF as the apparent porosity (φ_1), the aspect ratio of the porous bed (L0/Hs), the width ratio of the gas channels (d1/d0), and the number of elemental volumes in the construct (n). A numerical simulation for the designed first construct was then performed on COMSOL Multiphysics®, for pressure, velocity and concentration fields. Numerical results of pressure and velocity converge to analytical results. Results for the multi-scale design show that it is possible to carry out the process with low pressure drops by working with the design guidelines provided by the Constructal method.
Keywords
Carbon Capture, greenhouse gases, Constructal Design, mineral carbonation
