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Open AccessArticle

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

1
School of Mechanical Engineering, Chung-Ang University, Seoul 06974, Korea
2
School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
3
Fire Insurers Laboratories of Korea, Gyeonggi-do 469-881, Korea
*
Author to whom correspondence should be addressed.
Energies 2020, 13(12), 3099; https://doi.org/10.3390/en13123099
Received: 27 April 2020 / Revised: 11 June 2020 / Accepted: 12 June 2020 / Published: 15 June 2020
(This article belongs to the Special Issue Engineering Fluid Dynamics 2019-2020)
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. View Full-Text
Keywords: sprinkler; fire dynamics simulator (FDS); fire suppression; extinguishing coefficient; smoke logging; smoke spread sprinkler; fire dynamics simulator (FDS); fire suppression; extinguishing coefficient; smoke logging; smoke spread
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MDPI and ACS Style

Khoat, H.T.; Kim, J.T.; Quoc, T.D.; Kwark, J.H.; Ryou, H.S. A Numerical Analysis of the Fire Characteristics after Sprinkler Activation in the Compartment Fire. Energies 2020, 13, 3099.

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