| Title |
A Study on the Possibility of Evacuation Time Extension by the Exhaust Smoke Method Using an Indoor Vertical Shaft |
| DOI |
https://doi.org/10.6110/KJACR.2024.36.5.242 |
| Keywords |
피난시간 연장; 배연시스템; 화재시뮬레이션; 수직 샤프트 Evacuation time extension; Exhaust smoke system; FDS; Vertical shaft |
| Abstract |
The results of FDS conducted on the exhaust smoke method using a vertical shaft and the possibility of extending evacuation time are summarized as follows: 1. According to the FDS results based on the Eva 2.5 standard, the indoor temperature was 10.2% lower in the case of natural or mechanical smoke compared to 30℃ in the existing case.
2. Based on the W2 standard, the indoor temperature in the case with mechanical smoke was 10.1% lower compared with the existing case, and the CO2 concentration was reduced by 21.7% and 28.9%, respectively, compared with the existing case. CO concentrations were reduced by 21.6% and 28.8%, respectively, compared with the existing case.
3. Among the Eva 2.5 and W2 standard items, it was possible to extend the evacuation time due to natural or mechanical smoke methods based on temperature, CO2, and CO concentrations.
4. However, in the reference plane, the evacuation route and background route overlap. Therefore, for better evacuation effects, it is possible that suffocation within households can be prevented by plans that eliminate overlap between the evacuation route and the smoke exhaust route. |