Shipboard Smoke Control Tests Using Forced Counterflow Air Supply
2006
Williams, F. W. | Forssell, E. W. | DiNenno, P. J. | Beyler, C. L. | Lain, P.
A full-scale experimental investigation of smoke movement in horizontal passages and vertical trunks has been conducted to correlate minimum opposed air flows and buoyancy of the smoke. A series of experiments were carried out on the ex-USS SHADWELL. The correlation between minimum opposed air flow velocity and smoke propagation is presented in terms of Froude numbers. The experimental results of the present work shows that the relatively modest air velocities are able to limit the movement of smoke in either the horizontal passageway or the vertical trunk. On the basis of present results, a smoke exhaust system can be designed with large openings to provide a means of restricting the movement of smoke from fires. Recommendations are made for further research on smoke exhaust system testing to establish a correlation between fire size, extent of upstream smoke migration and air flow velocity.
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