Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
ESTABLISHMENT OF AN EXPERIMENTAL FACILITY AND VELOCITY MEASUREMENTS OF AIRFLOW OVER POROUS BED
Submission Author:
Rui Junior , PA
Co-Authors:
Rui Junior, Wendel Rafael de Souza Chaves, Yung Lin, Pedro Silva, José Vitor Freitas da SIlva, Danielle R S Guerra
Presenter: Rui Junior
doi://10.26678/ABCM.COBEM2019.COB2019-0902
Abstract
Many studies of flow in porous fixed bed are conducted and widely reported in the literature with several applications. Among the several effects caused by the flow dynamics of the porous bed, there is a pressure drop phenomenon caused by the bed. This paper aims to describe the construction and validation of an experimental apparatus for the development of research about the air flow over porous medium. The proposed facility reflects the structure of an up-flow reactor used on the amazon biomass gasification process, by using of a structure with basic measuring instruments and an electric fan to create the air stream within the proposed model. The facility proposed aims to contribute with a plant capable of delivering reliable results to assess the qualitative and quantitative parameters describing the pressure drop behavior of biomasses of different geometric configurations and sizes. As a result, the apparatus is proposed and an application of classical analysis proposed by Ergun equation for pressure drop was carried out showing a deviation when used on porous structures. The validation of the apparatus was made via data collection and also the comparison of the basic airflow characteristics were done, showing good agreement.
Keywords
porous medium, fixed bed, velocity profiles
