Post on 14-May-2018
8th International Conference “Tunnel Safety & Ventilation” 2016
Martin Viertel
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING
GOTTHARD BASE TUNNEL VENTILATION SYSTEM
OVERVIEW
Gotthard Base Tunnel
Ventilation System
Commissioning
Examples
Conclusion
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016 2
OVERVIEW OF THE GOTTHARD BASE TUNNEL
3COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
4
OVERVIEW OF THE VENTILATION SYSTEM
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
East tube
West tube
Emergency Station
1 of 44 ventilation strategies
5
OVERVIEW OF THE VENTILATION SYSTEM
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
East tube
West tube
Emergency Station
1 of 44 ventilation strategies Exhaust air shaft cross section
Damper
Emergency Station
6
OVERVIEW OF THE VENTILATION SYSTEM
Fresh air fans in SedrunExhaust air dampers above the
emergency station
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
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OVERVIEW OF THE VENTILATION SYSTEM
Emergency Station Sedrun West
(1 of 4)
Exhaust air shafts above the
emergency station
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
WHAT WE DO – COMMISSIONING PHASES
8
F.A.T.
• Standalone tests
• Component interaction tests
• Emulated tests with MMI andfunctional tests.
Installation, Commissioning
• Stepwise functional tests
• Integration tests
• Combined functional tests
• Fine tuning of components
Validation testing
(8 Months –3000 Tests)
• Verification of set goals
• Proof of relevant operation requirementsof the tunnel
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
WHAT WE (ALSO) DO – COMMISSIONING PHASES
9
F.A.T.• Standalone tests
• Component interaction tests
Installation, Commissioning
• Stepwise functional tests
• Integration tests
• Fine tuning of components
Validation testing
• Verification of set goals
• Proof of relevant operation requirementsof the tunnel
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
EXAMPLE: LEAKAGE FLOW MEASUREMENTS
10
Model of leakagein ducts
Choice ofmeasurement
conceptFlow
measurements
∆𝑝 measurement
Characteristicparameter fitting
- Extrapolation
- Tracking leakageover time
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
Exhaust Duct Faido
Ventilation Station Faido
MFS Faido
Exhaust flow
Faido Gallery (Fresh air duct)
AV
Leakage flowAV Fresh air
EXAMPLE: LEAKAGE FLOW MEASUREMENTS
11COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
Model of leakagein ducts
Choice ofmeasurement
conceptFlow
measurements
∆𝑝 measurement
Characteristicparameter fitting
- Extrapolation
- Tracking leakageover time
Quadratic (Turbulent)
Model
Linear (Laminar)
Model
EXAMPLE: LEAKAGE FLOW MEASUREMENTS
12COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
Model of leakagein ducts
Choice ofmeasurement
conceptFlow
measurements
∆𝑝 measurement
Characteristicparameter fitting
- Extrapolation
- Tracking leakageover time
Exhaust Duct Faido
Ventilation Station Faido
MFS Faido
Exhaust flow
Faido Gallery (Fresh air duct)
AV
Leakage flowAVAll exhaust dampers
CLOSED
Massflow 2
Massflow 1
Exhaust flow + Leakage flow
DP DP
• Uncertainty analysis
• CFD Velocity profile
EXAMPLE: LEAKAGE FLOW MEASUREMENTS
13COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
EXAMPLE: LEAKAGE FLOW MEASUREMENTS
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-40.00%
-30.00%
-20.00%
-10.00%
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
295 507 851 1269 1773 2350 2617 274 993 2174 2668 2896
Dev
iati
on
of
mo
de
ls f
rom
me
asu
red
leak
age
[%
]
Mean differential pressure [Pa]
Rel Dev Mix [%] Rel Dev Lam [%] Rel Dev Turb [%]
Drawing against CLOSED exhaust dampers
Drawing against OPEN exhaust dampers
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
Model of leakagein ducts
Choice ofmeasurement
conceptFlow
measurements
∆𝑝 measurement
Characteristicparameter fitting
- Extrapolation
- Tracking leakageover time
COMMISSIONING PHASES
15
F.A.T.• Standalone tests
• Component interaction tests
Installation, Commissioning
• Stepwise functional tests
• Integration tests
• Fine tuning of components
Validation testing
• Verification of set goals
• Proof of relevant operation requirementsof the tunnel
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
COMMISSIONING PHASES
16
F.A.T.• Standalone tests
• Component interaction tests
Installation, Commissioning
• Stepwise functional tests
• Integration tests
• Fine tuning of components
Validation testing
• Verification of set goals
• Proof of relevant operation requirementsof the tunnel
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
17
VALIDATION TESTING: FIRE SIMULATIONS IN
EMERGENCY STATIONS
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
18
VALIDATION TESTING: DIFFERENTIAL PRESSURE
SAMPLING
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
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GBT is a complex system
Model your system before measuring
Single-Point Volume Flow measurements:
Integration of CFD
Simple and cost effective
Fire Tests with smoke generators and firetrainer
CONCLUSION, APPLICATIONS TO OTHER TUNNELS
COMPLEX COMMISSIONING AND QUANTITATIVE TESTING OF THE GOTTHARD BASE TUNNEL VENTILATION SYSTEM
8th Int. Conference ‘Tunnel Safety & Ventilation’, Graz, 2016
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