Aerodynamics & Ventilation

Pressure simulation and validation

The multifaceted requirements regarding aerodynamics and ventilation place high demands on both operators and planners. An early conception and planning by qualified specialists is the key to achieving maximum efficiency and safety during construction and operation.

We gained valuable experience by completing successful projects. We support our clients with distinctive specialisation as well as in-depth knowledge in the fields of aero- and thermodynamics. Together, we develop the best solutions to be one step ahead of the requirements of the market.

Services

Fire and smoke simulation

Design – Tendering – Realisation – Commissioning

Feasibility studies
Conceptual design and dimensioning
Comprehensive simulations for ventilation, climate, fire and smoke
Detailed design and systems specifications
Tendering and contract awarding
Realisation, commissioning and approval
Concepts for operation and maintenance
Training of operational and safety staff

Ventilation and safety concepts

Construction Site Ventilation

Conception
Optimisation of ventilation systems and reduction of energy consumption

Maintenance and Refurbishment

Control and assessment of all structural components and equipment
Verification of the compliance with standards and identification of paths for improvement
Improvement of control systems
Optimisation of energy, operating and maintenance costs
Planning of refurbishment projects, realisation and commissioning

Simulation of the NO2 concentration at the tunnel portal

Aerodynamic Analyses

Compressible tunnel aerodynamics
Evaluation of train-induced pressure and wind loads
Minimisation of aerodynamic loads on structures and vehicles
Optimisation of tunnel cross-sections with respect to micro pressure waves and energy consumption
Ensuring compliance with health and passenger comfort criteria

Emission Surveys

Analysis of fundamentals
Analysis of the dispersion of emissions and pollutants
Planning of corrective actions

Expertise and Consulting Services

Optimisation of ventilation, equipment and energy consumption
Cost-benefit and cost-effectiveness analyses
Second opinions and expert assessments
Scenario-based analyses and quantitative risk analyses (QRA)
Escape route concepts and evacuation procedures

Competence

Broad expertise
Integral, innovative solutions
Advanced modelling and simulation tools
Strict adherence to budgets and deadlines
Over 30 years of experience worldwide
Active involvement in international research and development projects

Benefits

Fewer interfaces thanks to our multidisciplinary team
Reduction of design and construction costs
Higher reliability during planning
Reduction of energy needs and operational costs
Extension of maintenance intervals

Selected references

Project

Uetliberg Tunnel, Zurich, Switzerland

Services

Ventilation

Client

Civil engineering department of the Canton of Zurich

Project

Tunnels Tabladillo and Fuentecilla, Madrid, Spain

Services

Aerodynamic analysis

Client

INECO

Project

Gotthard Base Tunnel, Switzerland

Services

Equipment incl. ventilation

Client

ATG, AlpTransit Gotthard

Project

Follo LIne Tunnel Oslo-Ski, Norway

Services

Ventilation and safety

Client

Jernbaneverket

Project

Tunnels Via Binaria and Via Expressa, Rio de Janeiro, Brazil

Services

Ventilation and safety

Client

Porto Novo

Project

Pump storage power plant Belesar, Spain

Services

Construction site ventilation

Client

Geotunel