Evaluation of Control Strategies for Ventilation, Night Cooling in AAU Campus
Author
Ezeddinlou, Mohammadhossein
Term
4. Term
Education
Publication year
2026
Submitted on
2026-01-08
Abstract
This thesis examines how well selected offices at the AAU BUILD facility cool down overnight during warm summer weather. Using indoor temperature measurements from the building management system (BMS), the study assesses how ventilation type, the amount of air movement, the building’s thermal mass (its ability to store heat), and internal heat gains from people and equipment affect the drop in temperature by morning. The results show clear differences between ventilation approaches: rooms with cross-ventilation cool faster and end up cooler than rooms with single-sided ventilation or no ventilation. On weekends, lower activity reduces internal heat gains, so starting indoor temperatures are lower. Overall, the study shows that creating effective airflow paths and making use of thermal mass can reduce overheating risk and improve indoor conditions at the start of the working day.
Dette speciale undersøger, hvor godt udvalgte kontorrum i AAU BUILD køler ned om natten under varme sommerforhold. Med indendørs temperaturmålinger fra bygningens styringssystem (BMS) vurderer studiet, hvordan ventilationsstrategi, luftstrømme, bygningens termiske masse (dens evne til at lagre varme) og interne varmetilskud fra personer og udstyr påvirker temperaturfaldet til næste morgen. Resultaterne viser klare forskelle mellem ventilationsformer: Rum med tværventilation køler hurtigere og bliver samlet set køligere end rum med ensidet ventilation eller uden ventilation. I weekender er starttemperaturerne lavere, fordi interne varmetilskud er mindre. Overordnet viser resultaterne, at effektive luftveje og udnyttelse af termisk masse kan mindske risikoen for overophedning og forbedre indeklimaet ved arbejdsdagens begyndelse.
[This apstract has been rewritten with the help of AI based on the project's original abstract]