The use of inverter technology in road tunnel ventilation system and its quantitative evaluation with the risk analysis tool TuRisMo
The big cities in the world are facing an issue how to manage the increasing road traffic volume. As a solution to the traffic volume increase, long distance and networked underground road tunnels are being constructed in and near urban city area. The lecture begins with the construction plan and operation of such "complex tunnels" in Europe, Australia, and Japan. The point of focus is placed on the electrical equipment for ventilation system at such tunnels, which controls and manages the environmental quality of tunnel air under both normal and fire emergency operations.
The invention of inverter-driven ventilation control system is a major breakthrough which has led to compact size of power transformer, energy saving in ventilation fans, accurate control of tunnel airflow velocity, no interference to communication signals, elimination of surge voltage to jet-fan motor winding, and avoiding mechanical stress to jet-fan motor bearing.
There are several options in ventilation system design: number of emergency exit, fire emergency ventilation, timing of water spray activation, and traffic control. It is vital to evaluate alternative options in the tunnel design stage in a quantitative manner. The lecture will explain TuRisMo, which is the Austrian standard risk analysis tool comprising of frequency analysis with an event tree, consequence analysis with 3D fire dynamics and evacuation simulations, and quantifying fire risk value. Actual use of TuRisMo at bidirectional and unidirectional tunnels will be presented.
Dr. Toshiaki Sakaguchi: Member, IEEE
Director and Executive Vice President of Sohatsu Systems Laboratory Inc.
14 Jan 2020
5:00pm - 6:30pm
Japan Local Network
Organized by: IET Japan Network and jointly with the Fundamental Mechatronics Research Institute of Osaka Electro-Communication University.
Note: The venue is “Neyagawa Campus”, not “Campus in front of the station”
Building J, 4th floor, room J407, Neyagawa Campus, Osaka Electro-Communication University