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Software

IDA Tunnel

IDA Tunnel is a comprehensive road and rail tunnel ventilation and fire simulation software, used by leading tunnel design companies worldwide.
IDA Tunnel allows you to simulate road and rail tunnel design projects, including full range of ventilation and fire design tasks. You will be able to get computed results that can be animated in the context of a full 3D representation of the tunnel network.
EXPLORE

IDA Tunnel is used for

Rail and metro tunnels

IDA Tunnel addresses the main climate and safety issues in underground rail systems1, and it relies on a graphical user interface for definition of the tunnel model.

A schematic representation of computational components, such as tunnel sections, branches, platforms, fans, etc. are accompanied by a 3D view, where computed results and moving trains can be animated in the context of a full 3D representation of the tunnel network.

IDA Tunnel permits long-term studies using measured climatic data, including moisture, and complex schedules. Train movement under normal traffic and emergency conditions are simulated, based on user-supplied acceleration, retardation, and maximum power and speed parameters. Stochastic traffic patterns may be described to avoid artificial train synchronization effects.

1D (one-dimensional) air movement driven by train piston effect, buoyancy (stack effect) and wind pressure is modeled as well as air moisture with wall evaporation, condensation and ice build-up.

The following additional air properties are presently computed

  • Age, i.e. total time spent underground.

  • Carbon dioxide - mostly generated by occupants.
  • Particle concentration, e.g. PM10 as generated by train movements.
  • Optical extinction coefficient of fire and diesel smoke.
  • CO, NOX and HC, as generated by diesel engines.

Road tunnels

IDA Tunnel handles air flows in road tunnels and related problem of pollution concentration due to emission from vehicles.

Results from simulations include air pressure and temperatures, flow rates and pollution concentrations along the tunnel. Input data are tunnel geometry, including flow friction factors and loss coefficients, plus traffic, emission data and air pressures at boundaries.

IDA Tunnel can be used for realistic studies of phenomena associated with real traffic such as congestion, bi-directional multi-lane traffic, vehicle and slope dependent maximum.

Fire and ventilation

IDA Tunnel addresses the main climate and safety issues in underground rail systems1, and it relies on a graphical user interface for definition of the tunnel model.

Ventilation may be longitudinal or transversal, with air supply and exhaust terminal devices distributed along the tunnel. For momentum jet fans the user specifies cross-sectional area, efficiency and air velocity.

Tunnel fire scenarios can be simulated, in which case a user specified heatflux is added in a limited section of the tunnel. Models for smoke production depending on fire type and combustion materials are available as well as fire size limitations according to available oxygen. Temperature profile into the wall and smoke radiation is modelled.

Video

Introduction to IDA Tunnel

Learn about EQUA's new software IDA Tunnel is all about.

What is new

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Mouse wheel support

Highlights in 1.2.1

Support of the mouse wheel makes it easier to scroll lists and to zoom graphical views.

Simulations

Highlights in 1.2

Improved algorithms increase simulation robustness and speed.

Compressed binary file format

Highlights in 1.2

The default option is now to save the entire IDA Tunnel project in one single binary file. This makes it easier to copy IDA Tunnel projects and to incorporate them in file handling systems.

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Product brochure

Read more about IDA Tunnel and its features.

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Some of Our IDA Tunnel Clients

EQUA distributes its products and provide services worldwide through local offices, and with reference customers such ass.