ABSTRACT
Introduction Natural ventilation can serve a range of purposes in buildings, from delivering fresh air in order to maintain air quality to ventilative cooling to limit temperatures during the summertime. It is also known as passive ventilation since no energy is used to drive airflow. Designs utilizing natural ventilation range in complexity from simple arrangements controlled by manually opened windows to complex automated Building Energy Management System (BEMS)-linked mixed-mode systems, and those involving induced airflow via techniques such as passive downdraught evaporative cooling.
