A Numerical Analysis of the Fire Characteristics after Sprinkler Activation in the Compartment Fire

Ho Trong Khoat, Ji Tea Kim, Tran Dang Quoc, Ji Hyun Kwark and Hong Sun Ryou
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Ho Trong Khoat: School of Mechanical Engineering, Chung-Ang University, Seoul 06974, Korea
Ji Tea Kim: School of Mechanical Engineering, Chung-Ang University, Seoul 06974, Korea
Tran Dang Quoc: School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
Ji Hyun Kwark: Fire Insurers Laboratories of Korea, Gyeonggi-do 469-881, Korea
Hong Sun Ryou: School of Mechanical Engineering, Chung-Ang University, Seoul 06974, Korea

Energies, 2020, vol. 13, issue 12, 1-13

Abstract: Understanding fire characteristics under sprinkler spray is valuable for performance-based safety design. However, fire characteristics during fire suppression by sprinkler spray has seldom been studied in detail. In order to present a fire suppression model by sprinkler spray and determine the fire characteristics after sprinkler activation in a compartment, a numerical analysis was conducted using a fire dynamics simulator (FDS). A simple fire suppression model by sprinkler spray was calibrated by comparing ceiling temperatures from experimental data. An extinguishing coefficient of 3.0 was shown to be suitable for the fire suppression model. The effect of sprinkler spray on the smoke layer during fire suppression was explained, revealing a smoke logging phenomenon. In addition, the smoke, which spread under the influence of the sprinkler spray, was also investigated. The temperature, velocity, and mass flow rate of the smoke layer through the doorway was significantly reduced during fire suppression compared to a free burn case.

Keywords: sprinkler; fire dynamics simulator (FDS); fire suppression; extinguishing coefficient; smoke logging; smoke spread (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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