Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

Purpose: The relevant regulations stipulate that smoke exhaust windows must be installed over a certain area to ensure smoke exhaust performance. However, the basis and data for the minimum area of ​​the smoke exhaust window are unclear. Therefore, the change in smoke exhaust performance according to the area of ​​the smoke exhaust window was studied. Method: In order to verify the smoke exhaust performance of smoke exhaust windows, the smoke exhaust performance was verified by changing the location and area of ​​smoke exhaust windows in small and large buildings at the same height. The area of ​​the smoke exhaust window was changed by 1 m², and the smoke exhaust performance was confirmed in the range of 0 to 30 m². Result: When a smoke exhaust window is installed on one side, smoke exhaust performance initially increases according to the area of ​​the smoke exhaust window regardless of the size of the building, but when a certain area is secured, no increase in smoke exhaust performance occurs. In cases where smoke exhaust windows are installed on two or more sides, in small buildings, if the smoke exhaust window area is secured to be at least the legal minimum area of ​​1 m², there is no change in smoke exhaust performance due to an increase in area. In large-scale buildings, the smoke exhaust performance increased according to the area of ​​the smoke exhaust window, similar to when the smoke exhaust window was installed on only one side. However, in this case, it was analyzed that the smoke exhaust performance did not increase when the area of ​​the smoke exhaust window was secured to a certain size or larger. Conclusion: Regardless of the area of ​​the smoke exhaust window, the smoke exhaust performance in small buildings was approximately 33 to 35 CMM, and in large buildings, it was approximately 42 to 45 CMM. It was confirmed that the area of ​​the smoke exhaust window had some effect on the smoke exhaust performance, but was not an absolutely influencing factor. Therefore, when calculating the area of ​​a smoke exhaust window, improvements should be made to ensure a reasonable area of ​​the smoke exhaust window through scientific methods.