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AF3 Summer School – Rome 2016
AF3 - Advanced Forest Fire Fighting
NUB-E Capsules Fire Fighting System
Testing Methodology AF3 Spanish Trials
Pyro Fire Extinction S.L. (PYRO)
AF3 Summer School
Istituto Superiore Antincendi - Rome
21st September 2016
AF3 Summer School – Rome 2016
WP74: Preventive Intervention Means (Capsules)
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2014-2016
System development
Patent pending (P-201630310)
Beta prototype (D742 - Spring 2016)
Tests with real fire in Spain and Greece
Effectiveness demonstrated
2016-2017
Prepare AF3 trials in Spain and Israel
Continue tests with Spanish firefighters
Final Capsule Subsystem Development Report (D743)
Promote additional pilot implementations with Fire Brigades in Italy, Greece and Spain
Nub-e in AF3 Project
AF3 Summer School – Rome 2016
Testing Methodology
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• Test plot is defined according to the terrain, fuel model and fire behaviour a priori characteristics
• Visual references are required in order to calculate ROS and FL parameters
• Capsules are deployed on the field, either previously or at the moment
• Fire behaviour is analysed before and after entering the preventive layer
• Results are obtained by image processing after the trial
AF3 Summer School – Rome 2016
Defensive line
Recommended width with handtools (to mineral soil)
Testing Methodology
AF3 Summer School – Rome 2016
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Defensive line
Nub-e without prior manual intervention
Testing Methodology
AF3 Summer School – Rome 2016
Testing Methodology
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• Greek trials were executed on a Fuel Model 11, deploying 7 capsules.
• A flame of 2,5 m length was stopped using just two capsules
• Spanish Trials will take place not on a prepared plot, but in real terrain
• Control plot has to be defined before the trial
AF3 Summer School – Rome 2016
Trial Evaluation Fiche
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Trial Fiche
Each test is registered:
• In video, for analysis and image processing
• By means of an Evaluation Fiche, which includes:
• Environmental and Terrain Conditions
• Fire Behaviour Conditions
• How Capsules have been deployed
• Capsules configuration used in the Trial
• Fire Parameters Obtained from the image processing
• Collected data allows to run a fire simulator (Behave) to obtain power, rate of
spread and behaviour in absence of fire breaks.
AF3 Summer School – Rome 2016
Trial Evaluation Fiche
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GENERAL DESCRIPTION
ID 04 Date 24/05/2016 Time 11:00 – 17:00
Location Viso del Marqués (Ciudad Real, Spain)
Partners: Castilla-La Mancha Forest fires Agency, GEACAM, PYRO
PRESCRIBED FIRE CONDITIONS
Clasification: Forestry Patron Wind and slope favourable
FIRE CONDITIONS AND CONTROL PLOT
Plot Size >1 ha Slope (%) 20 Orientation South
Vegetation (Fuel)
Fuel Model 9 Behave Simulation bed has been adjusted from 0.06 to 0.08 m.
Characteristics
Pinus pinaster; 90% Fcc; Fuel bed depth (long needle) among 0.1-0.15 m Cistus sp: 5-10 % Fcc (stands); 1,5 m Woodpiles: < 5 % Fcc; 1 m
Hummidity
Low- Moderate
Dead Fuel 1-h 7 10-h 8 100-h 9
Live Fuel Moisture Grass 70 Woody 100
Environment Conditions Temperature (Cº) 29
Wind
Speed (km/h) 20 (Max > 25)
Hummidity (%) 24 Direction South
CHEMICAL FIRE BREAK COMPARISON
Nub-e
Attack Indirect. Capsules deployed each 2.5 m
Retardant Agent Product FR CROS 161 T Mix Ratio 1:9 [P2O5] 30.8
Wet Area Width (m) 6 Dose (l/m2) 0.5 Gr P2O5/m2 15.4
Teorethical
Retardant
Agent Product FR CROS 134 T Mix ratio 1:4 [P2O5] 92.4
Wet Area
Author Width (m) Dose (l/m2) Gr P2O5/m2
Arnaldos et al. 2004 2-3 0.5 46.2
Velez (2009) 2.6 2 184.8
Lacuey and Carrera (2011) - - - George (1981) 2.6 0.81 74.8
FIRE BEHAVIOUR
FL (m) I (kw/m) ROS (m/min) Before Preventive Layer 1.6 715 9
Inside Preventive Layer 0 0 0
Past Preventive Layer (Behave) 2.2 1464 17.4
Key Performance Indicators (KPI) FL reduction (%) I reduction (%) ROS reduction (%) 100 100 100
AF3 Summer School – Rome 2016
Expected Results
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• Tests performed in prescribed fires in April – May 2016 clearly show that retardant application improves bibliography recommended values in more than 50%
• By using NUB-E supporting a road or other defensive line, the line width can be significantly reduced
• Flame lengths of 3 meters can be controlled and extinguished autonomously
• Results should be extended to other fuel models
AF3 Summer School – Rome 2016
Bibliography
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References • George C.W. and Fuchs F.A., 1991. Improving Airtanker Delivery Performance. In Fire
Management Notes Volumen 52 No 2, 30-39. USDA Forest Service
• Lacuey A., Carrera M., 2011. Dispositivo mecánico para la lucha contra incendios forestales: “barras de pulverización”. PFC. EUITI de Zaragoza
• Arnaldos Viger J., Navalón Nonell X., Pastor Ferrer E., Planas Cuchi E., Zárate López L., 2004. Manual de ingeniería básica para la prevención y extinción de incendios forestales. Mundi prensa. 414 pp.
• Vélez Muñoz R. (coord.), 2009. La defensa contra Incendios Forestales. Fundamentos y experiencias. 2ª ed. Mc Graw Hill, 1320 pp.
• Liz Graña J.L, Català Lloret J., Escrig Del Valle A., Molina Lázaro M. 2016 Eficacia y usos del nuevo sistema de prevención y extinción de incendios forestales NUB-E. SINIF 2016.
• Videos on the AF3 Trials and more materials are available from: https://www.youtube.com/channel/UCZQudyMFHYrPpLTKT1E_jtQ/videos