Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
Study of a wall solar chimney to remove air from the top of an indoor environment
Submission Author:
Thales De Freitas Villas Bôas , SP , Brazil
Co-Authors:
Felipe Person Malta, Jose Luiz Furtado Gouveia , Cyro Albuquerque Neto
Presenter: Thales De Freitas Villas Bôas
doi://10.26678/ABCM.ENCIT2016.CIT2016-0662
Abstract
Solar chimneys inserted into the walls of a building might be used to improve indoor ventilation. This type of device can be used in both warm and cold climates, by only making a few arrangements in configuration. The aim of this work is to study the possibility of not only extract air from the bottom of an indoor environment, but also the upper portion of it. This could be achieved by obstructing the chimney’s section at a certain height, while implementing a second inlet, the upper one, which will drag air from the indoor. The results showed that the existence of an upper inlet, promotes an increase in chimney’s total air flow at up 10% , making this arrangement a great alternative over conventional chimney layout or even a small one, dedicated only to recirculate the top of an indoor environment. It was also found, that the main responsible for the flow increase, is the obstruction gap dimension, where narrower gaps are better.
Keywords
thermal comfort, Solar Chimney, Solar Energy, Passive Ventilation, Natural Convection, thermal comfort, Solar Chimney, Solar Energy, Passive Ventilation, Natural Convection
