抄録
Approximately over 1,500 Jet Fans are installed in the tunnels operated by Japan Highway Public Corporation. It is important to clearly grasp their performance and to use them for tunnel ventilation design, but this is still challenging task. It is the result of our research that the pressure raise equation based from jet fan thrust might be more suitable for designing and controlling on the conditions of the normal temperature, in comparison with the equation based from outlet air velocity. However, further study from various view points is necessary to conclude this issue.
