Modelado y simulación del proceso de generación de bio-electricidad en una celda microbiana (MFC) con los sustratos: glucosa y lixiviados.

Abstract

In this work, the objective was to simulate thermodynamic and electrochemical models using COMSOL Multiphysics that describe the operation of a microbial fuel cell, using the glucose and acetate substrates, as well as its validation through the variation of amperage and temperature, this is with the in order to determine parameters that necessary for the model and establish computational algorithm (script) for future research. These models were design from 2 perspectives, the first framed in transport phenomena in addition to the physical distribution of secondary current, which includes modeling in the COMSOL Multiphysics computational tool, the second is the presentation of the computational algorithm developed in Matlab, using electrochemical and thermodynamic equations, in order to show the importance of the phenomena that occur within the MFCs, this with the help of the mathematical description of the microbial fuel cells, thus obtaining the voltage generation, thus having a theoretical generation with the 1.15 V glucose substrate, with the modified Monod equation and in the case of the acetate substrate it has a theoretical generation of 1.1 V with the aforementioned equation. Ending with the recommendation of the use of appropriate equipment for the simulation because, it does not take too long for the simulation to be executed.