Natural Ventilation of Toilet Units in K–12 School Restrooms Using CFD

In this study, the influence of architectural design parameters (the exterior window area, wall height at a corridor-side, and door gap toilet unit) on airflow patterns malodorous volatile substance (acetic acid) distributions within units were investigated via computational fluid dynamics (CFD), with restrooms in K–12 public schools (kindergarten through grade 12) Taiwan as research objects. The results show that when there is 2 m/s north wind winter, all cases exceed required 12 air changes per hour (ACH), most are above 43.75 ACH. When 0.5 south summer, nearly half fail to reach Maintaining an adequate natural ventilation rate acceptable level odor pollution passive difficult. Thinking about how improve efficiency aid simple, appropriate, energy-saving mechanical approaches necessary.