Optimizing Fenestration Placement for Enhanced Natural Ventilation in Small Bedrooms

This study investigates the influence of fenestration positioning on natural ventilation efficiency in small bedrooms, where optimal airflow is essential for enhancing indoor air quality and thermal comfort. In enclosed spaces, airflow induced by ceiling fans tends to form a continuous loop, with significant velocity along wall edges and diminished airflow near the wall centers. This airflow pattern suggests that placing openings such as windows, doors, and transoms at wall centers may be inefficient, as limited air exchange could result in recirculation of stagnant indoor air. Three configurations are proposed to improve air exchange: corner positioning of floor-level openings, corner placement of full-height windows, and the installation of protruding elements aligned with airflow. Each configuration is designed to enhance low-pressure zones and promote efficient ventilation by directing air exchange paths. The findings offer insights into fenestration design to optimize natural ventilation, supporting health-oriented and sustainable architectural practices.