| Title |
An Experimental Study of Smoke Visualization and Exhaust Rate in an Indoor Vertical Shaft Using a Scaled-down Model |
| Authors |
Sung Woo Cho ; Pyeong Chan Ihm |
| DOI |
https://doi.org/10.6110/KJACR.2024.36.1.1 |
| Keywords |
부력; 배연량; 실물; 축소모형; 유사성 Buoyancy; Exhaust rate; Full scale model; Scaled down model; Similarity |
| Abstract |
A 1/6 scaled-down model experiment was conducted using similarity conditions to visualize the smoke flow through a vertical axis connected to an apartment bathroom and predict the amount of exhaust smoke. The study conclusions can be summarized as follows. (1) Since the results between the scaled model experiment and Eq.(14) were nearly concordant, the similarity condition using thermal transmittance was validated. (2) Although smoke flow was confirmed through the vertical shaft in the visualization experiment, improved methods are needed as it was discharged to the outdoors at a time difference. (3) As more than 80% of the smoke was discharged to the outdoors in the experiments, vertical shafts can be considered sufficient to prevent suffocation in households. |