O Impacto de brises na ventilação natural: avaliação integrada em uma enfermaria em Florianópolis (SC)

• Autor(a) principal: Quadros, Bianca Milani de
• Data de Publicação: 2018
• Outros Autores: Mizgier, Martins Ordenes
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: P@ranoá
• Texto Completo: https://periodicos.unb.br/index.php/paranoa/article/view/11800
• topic: Conforto ambiental; Ventilação; Brises; EnergyPlus; CFD; Environmental comfort; Ventilation; Shading devices; EnergyPlus; CFD

The main purpose of shading devices is controling windows heat gain. However, these elements can have an influence on natural ventilation control according its geometry and wind direction. In hospitals, natural ventilation can be used to reduce the energy consumption, to provide thermal comfort and to control hospital-acquired infections through air renewal for all rooms where the HVAC systems is not mandatory. This paper analyzes the impact of shading devices on the performance of natural ventilation in an infirmary room in Florianopolis, Brazil. For a detailed analysis of natural ventilation, this study combined computational simulation with Airflow Network model and CFD. Two cases were simulated: case 1 reproduces the existing building project without shading devices and case 2 analyses the same model with shading devices in all windows. Results have shown that shading devices can impose on airflow behavior increasing the inlet wind velocity and hence the internal air velocity average. In conclusion, shading devices have not only a well-known importance on reducing solar heat gain but also they can help to improve natural ventilation performance.