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초록

In educational spaces, ensuring indoor environmental uniformity is essential for maintaining occupants' performance, particularly under ongoing high-temperature conditions. Accordingly, this study serves as a preliminary stage for the application of fabric air dispersion (FAD) systems in educational spaces. Through a parametric numerical scenario study that considers occupancy and ventilation requirements, it aims to evaluate the expected effects of FAD application and to explore operational directions. On-site monitoring and computational fluid dynamics (CFD) simulations were conducted to evaluate thermal comfort and CO2 distribution, and the baseline model was validated. Multiple regression analysis identified key environmental variables influencing predicted mean vote (PMV) and CO2, which were further verified through indoor environmental uniformity analysis. The findings indicated that applying the FAD system demonstrated expected effects related to achieving a more stable and uniform spatial distribution of indoor environmental conditions. Even under high occupancy, PMV remained within the comfort range with a difference of 0.5, indicating uniform thermal conditions. CO2 concentration decreased by about 1,000 ppm, but further ventilation strategies were required to achieve additional CO2 reduction. The most effective strategy was to increase the exhaust velocity to 4 m/ s, which enabled 67 % of the occupied zone to maintain CO2 levels within 1,000-1,500 ppm with acceptable thermal comfort. While this scenario suggests a potential operational direction when considering the application of the FAD system, further optimization of ventilation control is needed to achieve CO2 levels below 1,000 ppm.