Numerical Study on Different Series Modes of Jet Fan in a Longitudinal Tunnel Ventilation System

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">Operating condition</td><td align="left">Combination modes</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">1</td><td align="left">Turn on 4 jet fans of group 1 and group 3 (turn off the middle one of each group)</td></tr><tr><td align="left">2</td><td align="left">Turn on the middle jet fan of each group, from group 1 to group 4</td></tr><tr><td align="left">3</td><td align="left">Turn on 4 jet fans of group 1, group 2, and group 3 (turn on jet fans on left and right sides of group 1, and turn on the middle jet fans of other two groups)</td></tr><tr><td align="left">4</td><td align="left">Turn on 4 jet fans of group 1, group 3, and group 4 (turn on jet fans on left and right sides of group 1, and turn on the middle jet fans of other two groups)</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Combination modes of operational jet fans.

Mathematical Problems in Engineering

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Table 1

Table 1: Numerical Study on Different Series Modes of Jet Fan in a Longitudinal Tunnel Ventilation System 