| Title |
Analysis of Indoor Particulate Matter Concentration Based on Ventilation Strategies in School Cafeteria Kitchens |
| Authors |
Ilki Yoon ; Sowoo Park ; Doosam Song |
| DOI |
https://doi.org/10.6110/KJACR.2025.37.9.422 |
| Keywords |
CONTAM 시뮬레이션; 미세먼지; 학교 급식 조리실; 급배기 풍량 비율; 환기 전략 CONTAM simulation; Parrticulate matter; School cafeteria kitchen; Supply-exhaust airflow ratio; Ventilation strategy |
| Abstract |
This study evaluates changes in indoor particulate matter (PM) concentrations in school kitchens under various ventilation strategies using CONTAM simulation. The simulation includes seven ventilation scenarios based on outdoor PM concentration levels, encompassing natural ventilation, window-type natural ventilation systems, and mechanical ventilation systems, with varying supply-to-exhaust airflow ratios. The results indicate that natural ventilation alone is insufficient for maintaining effective indoor air quality. Specifically, high outdoor PM concentrations can significantly deteriorate indoor air quality when relying solely on natural ventilation. In contrast, mechanical ventilation, with supply airflow at least 60% of the exhaust airflow, effectively controls indoor PM concentrations. Increasing the supply airflow to 80% ensures compliance with indoor air quality standards, even under extreme outdoor conditions. These findings suggest that mechanical ventilation is crucial in high-load environments, such as school kitchens, and provide foundational data for optimizing ventilation system design. |