The impact of buoyancy and wind on single-sided natural ventilation through diverse window configurations

Vzdrževanje ustrezne kakovosti zraka v prostoru samo z enostranskim naravnim prezračevanjem je izziv, zato v tem zaključnem delu raziskujemo povezave med mehanizmi naravnega prezračevanja in konfiguracijami okna ter njihov vpliv na stopnjo izmenjave zraka. Obravnava krivulj padanja koncentracije CO2 omogoča relativno enostavno določitev pretoka zraka v prostor. Rezultati meritev pri različnih konfiguracijah okna pokažejo, da je veter vodilni mehanizem prezračevanja pri majhni efektivni površini okna. Z oknom odprtim ob strani dosežemo večje pretoke zraka kot pri zgoraj odprtem oknu, ne glede na glavni dejavnik prezračevanja. Z zgoraj odprtim oknom lahko prostor dobro prezračimo le pri višjih hitrostih vetra.Maintaining adequate air quality in a room with only one-sided natural ventilation is a challenge, therefore in this study we research the connections between the mechanisms of natural ventilation and diverse window configurations along with their impact on air exchange rate. Investigation of CO2 concentration decay curves makes it relatively easy to determine the airflow rate into a room. The results of measurements at different window configurations show that wind effect is the leading ventilation mechanism at small effective window area. With the window open at the side, we achieve higher airflows than with the tilted window, regardless of the main driving force of ventilation. With the tilted window configuration, the room can only be well ventilated at higher wind speeds