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http://dx.doi.org/10.7842/kigas.2012.16.3.065

Explosion Characteristics by Different Sizes in the Wall Surface Shape of a Water Gel Barrier  

Park, Dal-Jae (Dept. of Safety Engineering, Seoul National University of Science and Technology)
Kim, Nam-Il (Dept. of Safety Engineering, Graduate School of Industry, Seoul National University of Science and Technology)
Publication Information
Journal of the Korean Institute of Gas / v.16, no.3, 2012 , pp. 65-70 More about this Journal
Abstract
Experimental investigations were carried out to examine the explosion characteristics by different sizes in the wall surface shape of a water gel barrier in an explosion chamber, 1,600 mm in length with a square cross-section of $100{\times}100\;mm^2$. The sizes in the wall surface shape were varied by using water gel barriers with a cross-section of $100{\times}200\;mm^2$ and its were varied in the bottom of the chamber away 300, 700 and 1,100 mm, respectively from the closed end of the chamber. The flame propagation images were photographed with a high speed camera and the pressure was recorded using a pressure transducer and a data acquisition system. It was found that as the size of the wall surface shape increased, the flame propagation process and the time taken to reach the maximum pressure were found to be faster. As a result, both the flame speed and the explosion overpressure increased as the size of the wall surface shape increased.
Keywords
Wall surface shape; Gel barrier; Flame speed; Pressure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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