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http://dx.doi.org/10.9711/KTAJ.2011.13.1.001

Experimental study on the spray density distribution of water spray system in road tunnel  

So, Soo-Hyun (한국소방산업기술원)
Park, Kyung-Hwan ((주)영설계엔지니어링)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.13, no.1, 2011 , pp. 1-8 More about this Journal
Abstract
Spray density of the water spray system which is installed in long road tunnels and hazardous vehicle tunnels is applied without proper performance assessment process. In this study, the requirements of Spray Density Guidelines at the standard pressure is investigated through spray test set up the nozzle of a water spray system in a simulated road tunnel. The results showed that all the nozzles used in the test area did not meet the requirements of the Guidelines. The absence of performance test codes and inspection process on the nozzle at real scale in tunnels may have caused this practice. Therefore, it is suggested that the performance test regulations of the nozzle on the water spray system is established in order to properly assess the system performance.
Keywords
Tunnel fire; water spray head; spray density; spray distribution;
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