Modelación CFD de un reactor de pirolisis descendente en forma de V

Abstract

The growth of environmental problems due to greenhouse gas emissions, as a consequence of the excessive use of fossil fuels such as coal and oil, makes it necessary to change the energy structure. It is essential to replace these fuels with sustainable resources and to study the equipment responsible for transforming the raw material. The objective of this work is to model a pyrolysis reactor using computational fluid dynamics techniques. The CAD design, as well as the entire simulation, was carried out in ANSYS fluent software. This software used numerical methods for the analysis of complex flow and heat transfer characteristics. Subsequently, geometry meshing was performed, aiming for a fine mesh level. In addition, the boundary conditions were specified, as well as all the characteristics of the fluid and inlet flows. The type of reaction was also defined, and finally, the results were obtained. Through simulation, characteristics such as pressure, temperature, mass fractions, velocity and flows were analyzed, and problem areas within the equipment were identified, allowing to take measures to improve its operation and performance. This information was crucial to make adjustments and optimizations in the design of the equipment, ensuring a more efficient and effective operation. In conclusion, the use of fuels such as petroleum had a direct impact on environmental pollution and caused significant damage to the plan, so a new fuel source based on biomass was proposed, which after passing through a pyrolysis reactor resulted in the production of combustion gases or by-products such as biochar. Also, the equipment was analyzed to identify areas of improvement and to optimize its performance and operation.