In this study, the effects of the jet fan speed, heat release rate and aspect ratio on smoke
movement in tunnel fires have been investigated. The jet fan speed was changed from 6.25 …

This paper presents two designs of the axial reversible jet fan, with the special focus on the
impeller. The intention was to develop a reversible axial jet fan which operates in the same …

The spiral tunnel could flexibly design the curvature and slope of the tunnel according to the
geological structure, avoiding the adverse effect of complex terrain and topography, and had …

To investigate air flow in longitudinally ventilated traffic tunnels, a scaled model of a typical
road-traffic tunnel with an appropriate ventilation system based on axial ducted fans, is …

To develop a reliable method for modeling fire case scenarios within the road tunnels and
observing the effects of the skewed velocity, experimental and numerical approach is used …

To facilitate the construction of underground powerhouse, dam and other areas and the
operation and management of power station, a considerable quantity of underground traffic …

Every year, many fires occur in the tunnels, with many causalities because of smoke. For this
reason, the ventilation system in the tunnel is one of the most critical issues for reducing …

An experimental study was carried out to evaluate the effectiveness of the VairTEX Air
Director device on a modified 1.5-ton air conditioner. The experiment was divided into two …