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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>The Effect of Exhaust Velocity on Smoke Exhaust in Subway Platform Fire</title>
      <link>https://trid.trb.org/View/1502256</link>
      <description><![CDATA[Due to location underground and relatively closed space, casualties would be caused if fire happens in a subway station. The effect of suction velocity on the smoke control effect is analyzed to determine the optimal exhaust velocity for the safety evacuation in a subway station. In this paper, a full-scale experiment was conducted to obtain the effect of smoke exhaust system in a subway platform fire. Numerical simulation of smoke control effect was also conducted by Fire Dynamics Simulator software (FDS). The appropriate parameters were verified by comparing the simulation results with the experimental results. It has been found that the optimal exhaust velocity at dampers for a platform fire was about 8 m/s. The results in the paper may serve as a useful reference for the smoke control design in case of subway platform fires.]]></description>
      <pubDate>Sun, 18 Mar 2018 21:42:16 GMT</pubDate>
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      <title>Numerical Simulation of Smoke Control Effectiveness with Different Exhaust Modes in a Large Subway Station</title>
      <link>https://trid.trb.org/View/1502257</link>
      <description><![CDATA[Fire smoke characteristics in the large subway transportation centre distinctly differ from others due to its complicated configuration and confined space. The smoke control effectiveness on different floors was studied with different smoke exhaust modes based on Shenzhen Che Kung Temple subway transportation centre by the method of large eddy simulation. The numerical simulation results show that high-temperature smoke is hard to gather due to the large space, and the effect of smoke control is obtained with different smoke exhaust and air supply modes. With the smoke exhaust volume specified by the relevant fire codes, the smoke spread in the basement can be effectively controlled, but the smoke movement in the sub-basement and third floor of underground are out of control. Meanwhile, some characteristic parameters such as smoke concentration, smoke temperature and visibility are effectively controlled by smoke exhaust and air supply of the entire region, and the smoke is better controlled in partial regions with smoke exhaust and air supply. Also, the smoke control effect in sub-basement is similar to that of third floor of underground.]]></description>
      <pubDate>Sun, 18 Mar 2018 21:42:16 GMT</pubDate>
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