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http://dx.doi.org/10.7731/KIFSE.2016.30.4.039

Air Curtain Nozzle Design for Uniform Jet Expulsion  

Park, Won-Hee (Railroad Safety Research Division, Korea Railroad Research Institute)
Chang, Hee-Chul (Research & Development Center, DeltaES Co., Ltd.)
Publication Information
Fire Science and Engineering / v.30, no.4, 2016 , pp. 39-45 More about this Journal
Abstract
The optimal design of an air curtain nozzle installed at exits, such as fire doors, was determined in order to block the flow of smoke into safe zones. Smoke is the greatest cause of loss of life during the fire. To block the flow of smoke, the airflow must be expelled uniformly without eccentricity from the slits in the air curtain nozzle installed on the upper part of the opening. In order to accomplish this, factors such as air inflow volume, shape of the internal slits, and thickness of the external slits were considered as variables in this study, and a numerical analysis was performed under various conditions. This led to the selection of a final shape which led to the finalization of a design shape. The final shape was manufactured as a prototype and the results were compared and verified with the results of the numerical analysis. The relative error of the numerical analysis results was less than 1%, and the average speed of all the slits was tested, exhibiting a highly consistent tendency.
Keywords
Air-curtain nozzle; Smoke protection; CFD; FloEFD;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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