Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
EXPERIMENTAL ANALYSIS OF A MODULAR SOLAR CHIMNEY
Submission Author:
Cristiana Brasil Maia , MG
Co-Authors:
Cristiana Brasil Maia, Janaína de Oliveira Castro Silva
Presenter: Cristiana Brasil Maia
doi://10.26678/ABCM.COBEM2021.COB2021-0372
Abstract
Solar chimneys are devices that use the incident solar energy to generate a hot airflow. These devices were originally designed for power generation, but it has been proven that large structures are required to generate electricity at competitive prices. Small scale devices can be used for other purposes, such as food drying and ventilation. A solar chimney power plant consists mainly of two components: solar collector and tower. The geometry of the components plays an important role on the performance of the solar chimney, characterized mainly by the airflow temperature and velocity. The influence of these parameters in the airflow was numerically studied by several researchers. To investigate experimentally this influence, an experimental prototype was designed and built in Belo Horizonte, Brazil. The device is modular, which allows the diameter of the solar collector and the diameter and height of the tower to be changed. The mass flow rate and the airflow and ground surface temperatures were evaluated. Results show that the tower diameter and height have more impact on the mass flow rate and that the collector diameter has more impact on the outlet airflow temperature.
Keywords
Solar Chimney, modular solar chimney, experimental analysis, Parametric analysis
