Numerical study of the influence of internal heat source in naturally ventilated offices
AUTOR(ES)
Rocha, Luiz Joaquim Cardoso, Souza, Henor Artur
FONTE
Rem: Rev. Esc. Minas
DATA DE PUBLICAÇÃO
2016-03
RESUMO
Abstract The natural ventilation in a building performs a fundamental role in users' welfare and health, when used as a bioclimatic and architectural strategy, it can provide brighter projects. Increasing the indoor air speed ventilation has an important performance maintaining indoor air quality, contributing to thermal interactions between human body and environment, which can significantly reduce the building's energy cost. In this study, a numerical research of natural convection in single-sided and cross ventilation is developed using the finite volume method, taking account the internal heat sources influence. The numerical model is used to determine the effects of wind and thermal forces combined by analyzing the stream functions and temperature distribution within an office. The turbulence model is the two differential equations for the low Reynolds number. The building's internal heat sources influence is analyzed herein. The results show that the single-sided ventilation presents excellent conformity with the results obtained in literature. The influence of the internal heat source is considered and it has been observed that the best source position is near to the air exit for both single-sided ventilation and cross ventilation.
Documentos Relacionados
- Natural convection heat transfer in partially open enclosures containing an internal local heat source
- Influence of Internal Sugar Levels on Apoplasmic Retrieval of Exogenous Sucrose in Source Leaf Tissue 1
- Equipment review: Mechanical effects of heat-moisture exchangers in ventilated patients
- Mechanically Ventilated Broiler Sheds: a Possible Source of Aerosolized Salmonella, Campylobacter, and Escherichia coli▿
- Heat-protective Ventilated Jackets: A Comparison of Humid and Dry Ventilating Air