Eventos Anais de eventos
EPTT 2020
12th Spring School on Transition and Turbulence
Numerical Investigation of the Natural Ventilation Influence in the Thermal Comfort of an Industrial Shed
Submission Author:
Douglas Pereira Vasconcellos , PR
Co-Authors:
Douglas Pereira Vasconcellos, Michel Nikolaos Stamoulis, Gerson Henrique dos Santos, Luiz Eduardo Melo Lima
Presenter: Douglas Pereira Vasconcellos
doi://10.26678/ABCM.EPTT2020.EPT20-0037
Abstract
Research seeking strategies for energy efficiency in buildings has been encouraged, because of a greater need for conscious energy consumption, due to the latest energy crises and environmental demands. As a way to achieve thermal comfort in environments, the thermal insulation application in the envelope, and the development of architectural projects that use natural convection, were studied in several types of research. Hence, this work aims to analyze the influence of the cross ventilation application on the thermal comfort of an industrial building (shed), considering the annual average wind in the city of Ponta Grossa, PR, Brazil. The ANSYS Fluent commercial software, a computational fluid dynamics tool, was used to solve the governing equations that model this problem, i.e., Reynolds-averaged Navier–Stokes. For the turbulence modeling, the standard k–epsilon model was used, which is a two-equation model: one for turbulent kinetic energy and another for its dissipation rate. The industrial shed analyzed has a simple industrial park and no bulkheads, with the building oriented in the north–south direction and having doors with a large proportion concerning the envelope area. From the results obtained for the airflow velocity fields, the cross ventilation application in the industrial shed proved to be satisfactory for improving the environment’s thermal comfort. Also, stagnation regions occurred close to the industrial shed walls, whose influence can be minimized, provided that thermal insulation is applied to reduce the heat exchange of the wraps.
Keywords
Numerical simulation, cross ventilation, thermal comfort
