Electrically controlled dynamic sprinkler activation: Computational assessment of potential efficiency

Publication date: Available online 21 April 2017
Source:Fire Safety Journal
Author(s): Leonid Tanklevskiy, Anna Tsoy, Alexander Snegirev
Electrically controlled dynamic sprinkler activation is the novel technology of managing large automatic fire suppression systems that offers considerable potential advantages over conventional (thermal) sprinkler activation. It is designed to reduce the sprinkler response time, to ensure sprinkler activation in case of high ceiling clearance, and it can also be used for dynamic group activation enabling flexible response to the actual fire pattern and preventing the fire spread beyond the area protected by the group. Since the practical experience of using the new sprinkler activation algorithms is yet to be elaborated, this work attempts computational evaluation of the group enforced activation efficiency. Fire suppression dynamics is compared for a growing fire source impacted by the automatic sprinkler systems of two types: with conventional (thermal) and new (group enforced) activation algorithms. The effects of ceiling clearance, water flow rates, spray refinement, and of the horizontal airflow are examined.



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