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12 records – page 1 of 2.

Evaporation rates, assessing the evaporation rates of water, foam, and water-enhancers

https://library.fpinnovations.ca/en/permalink/fpipub8011
Author
Refai, Razim
Paskaluk, Stephen
Date
March 2021
Material Type
research report
Field
Fibre Supply
was conducted in 1965. The products tested in that study— namely, Gelgard, Algin-gel, Bentonite, Phos-Chek 202
Author
Refai, Razim
Paskaluk, Stephen
Date
March 2021
Material Type
research report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Forestry
Forest fire
FPI TR
Gel
Test methods
Foam
Series Number
Techncial Reports ; TR 2021 N 17
Language
English
Abstract
Reduced surface evaporation rates are marketed as a competitive advantage by water-enhancer manufacturers. In this report, a new test method is developed and applied to quantify the evaporation rates of various commercially available water-enhancer products in a controlled environment. These quantified evaporation rates were then compared to the evaporation rate of water which served as the benchmark.
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Helicopter on-board system for mixing water-enhancing gel: field assessment

https://library.fpinnovations.ca/en/permalink/fpipub7318
Author
Ault, Ray
Hsieh, Rex
McIlwaine, Patrick
Date
July 2017
Edition
49477
Material Type
research report
Field
Fibre Supply
Author
Ault, Ray
Hsieh, Rex
McIlwaine, Patrick
Date
July 2017
Edition
49477
Material Type
research report
Physical Description
4 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Forestry
Forest fire
Gel
Series Number
InfoNote ; 2017 n.23
Language
English
Abstract
In May 2017 FPInnovations conducted an initial field assessment of a helicopter on-board system for mixing water-enhancing gel concentrate at Fort Vermillion. For this study, Alberta Agriculture and Forestry contracted a Bell 214B helicopter with on-board gel mixing capability. The helicopter company chose Firewall II gel and an Isolair external tank to meet the contract requirements. This Info Note presents FPInnovations’ observations of the ability of the on-board mixing system to effectively mix Firewall II gel with water.
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InfoNote2017N23.PDF

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In-stand drop footprint mapping using S-61N helicopters

https://library.fpinnovations.ca/en/permalink/fpipub8010
Author
Refai, Razim
Hsieh, Rex
Date
March 2021
Material Type
Research report
Field
Fibre Supply
Author
Refai, Razim
Hsieh, Rex
Date
March 2021
Material Type
Research report
Physical Description
49 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Helicopters
Forestry
Forest fire
FPI TR
Gel
Series Number
Techncial Reports ; TR 2021 N 16
Language
English
Abstract
Alberta Agriculture and Forestry’s (AAF) Wildfire Management Branch recently contracted two Sikorsky S-61N heavy helicopters. Both helicopters are equipped with an external tank (max. volume 1000 U.S. gallons) and have on-board injection systems that are capable of mixing class A foams and water-enhancers. Currently, there is limited data on comparative drop footprints of foam and water-enhancers (suppressants) for these heavy helicopters. To fill this knowledge gap, AAF has asked FPInnovations to conduct drop tests in different wildland fuel environments. This study focuses on mapping the drop footprints of water, foam, and water-enhancers in black spruce stands at specific flight parameters.
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On-field drop footprint mapping using S-61N helicopters

https://library.fpinnovations.ca/en/permalink/fpipub8012
Author
Refai, Razim
Hsieh, Rex
Date
March 2021
Material Type
Research report
Field
Fibre Supply
Author
Refai, Razim
Hsieh, Rex
Date
March 2021
Material Type
Research report
Physical Description
38 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Helicopters
Forestry
Forest fire
FPI TR
Gel
Series Number
Techncial Reports ; TR 2021 N 18
Language
English
Abstract
Alberta Agriculture and Forestry’s (AAF) Wildfire Management Branch has recently contracted two Sikorsky S-61N heavy helicopters. Both helicopters are equipped with an external tank (max. volume 1000 U.S. gallons) and have on-board injection systems that are capable of mixing class A foams and water-enhancers. Currently, there is limited data on comparative drop footprints of foam and water-enhancers (suppressants) for these heavy helicopters. To fill this knowledge gap, AAF has asked FPInnovations to conduct drop tests in different wildland fuel environments. This study focuses on mapping the drop footprints of water, foam, and water-enhancers in an open field at specific flight parameters.
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Performance evaluation of commercially available wildland fire chemicals using a custom-built thermal canister

https://library.fpinnovations.ca/en/permalink/fpipub36373
Author
Refai, Razim
Coronel, Eder Alain Villa
McDonald, Andre
Date
March 2020
Material Type
Research report
Field
Fibre Supply
Author
Refai, Razim
Coronel, Eder Alain Villa
McDonald, Andre
Contributor
Canadian Forest Services (CFS)
Ontario Ministry of Natural Resources & Forestry (OMNR)
Date
March 2020
Material Type
Research report
Physical Description
24 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Fire retardant
Wildfires
Chemicals
Gel
Retardant
FPI TR
Water
Series Number
Technical Report ; TR 2020 n.11
Location
Ontario
Language
English
Abstract
This study focuses on evaluating the relative performance of different commercially available wildland fire chemicals using a custom-built sensible enthalpy rise calorimeter, known as the ‘Thermal Canister.’ Six different fire chemicals were evaluated in this study: Blazetamer 380, AquaGel-K, Firewall II, WD 881C, Thermo-Gel 200 L, and FireIce 561. The evaluation of the relative performance of the fire chemicals was conducted by using the average heat release rate as the primary metric. It was found that under the test conditions, Thermo-Gel 200L at 3% concentration and FireIce 561 at 1.4% concentration were the most effective at suppressing combustion. The fire chemicals that were least effective at suppressing combustion were Firewall II at 0.25% and 2% concentration and WD 881C at 0.1%, 0.3%, and 1% concentrations. The study also found that certain fire chemicals such as AquaGel-K and FireIce 561 at their highest approved mix ratios were too viscous to be applied and may prove to be challenging to use for firefighting operations. Data from this study will be used in the Wildfire Chemical Roadmap, where results from multiple tests will help assess the effectiveness and cost of using gels.
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Prolongation du camionnage en période de dégel par des technologies qui préservent la route

https://library.fpinnovations.ca/en/permalink/fpipub40362
Author
Blair, Colin
Date
December 2001
Material Type
Research report
Field
Fibre Supply
Author
Blair, Colin
Date
December 2001
Material Type
Research report
Physical Description
15 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Transportation Infrastructure
Subject
Tires
Systems
Roads
Gel
Trucks
Advantage
Series Number
Avantage ; Vol. 2, No. 48
Language
French
Abstract
Restrictions de charge
Routes en période de gel
Trajets de camionnage des billes
Systèmes de gonflage central des pneus
Camions grumiers
Abstract
Durant le dégel du printemps, les routes secondaires peuvent être affaiblies par l’eau qui en sature les diverses couches. Les gouvernements imposent par conséquent des restrictions de charge pour atténuer l’impact de la circulation des véhicules lourds. Comme le transport de charges utiles réduites n’est pas viable économiquement, les usines accumulent d’importants stocks de bois pour maintenir une production continue pendant cette période. De récentes améliorations technologiques des camions, telles que les systèmes de gonflage central des pneus (CTI) et des configurations d’essieux moins dommageables pour les routes, peuvent réduire la charge appliquée à la structure de la route et permettre de reprendre des opérations viables de camionnage grumier plus rapidement qu’avec les équipements traditionnels. Le rapport documente les résultats d’une étude sur le terrain en vue d’explorer si ces deux technologies qui préservent la route pourraient rendre le camionnage possible durant les périodes de restriction.
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Recovery rates of suppressants from heavy helicopter drops

https://library.fpinnovations.ca/en/permalink/fpipub8013
Author
Refai, Razim
Hsieh, Rex
Date
March 2021
Material Type
Research Report
Field
Fibre Supply
Author
Refai, Razim
Hsieh, Rex
Date
March 2021
Material Type
Research Report
Physical Description
16 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Forestry
Forest fire
FPI TR
Gel
Test methods
Foam
Series Number
Techncial Reports ; TR 2021 N 19
Language
English
Abstract
In 2020, Alberta Agriculture and Forestry’s (AAF) Wildfire Management Branch contracted two externally tanked heavy helicopters with on-board injection and mixing systems. The two heavy helicopters are Sikorsky S-61N helicopters with modified Isolair tanks, capable of dropping water, foam, and water-enhancers. Drop tests were conducted using these helicopters to understand the relative footprints of different suppressants. This study focuses on using drop footprint data to estimate recovery rates of water, foam, and water-enhancers in two scenarios – an open field and a forested stand. These estimates may provide a primarily understanding of how best different suppressants can be used for different applications.
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Surveillance des conditions de dégel des routes au printemps pour maximiser la période de camionnage des billes

https://library.fpinnovations.ca/en/permalink/fpipub5828
Author
Webb, C.R.
Kelly, L.M.
Date
June 2001
Edition
40356
Material Type
Research report
Field
Fibre Supply
Author
Webb, C.R.
Kelly, L.M.
Date
June 2001
Edition
40356
Material Type
Research report
Physical Description
8 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Transportation Infrastructure
Subject
Roads
Gel
Trucks
Advantage
Series Number
Avantage ; Vol. 1, No. 37
Language
French
Abstract
Limites de charge
Routes en période de dégel
Routes de camionnage des billes
Niveaux de gel
Colombie-Britannique
Abstract
Quand les diverses couches qui forment les routes de camionnage commencent à dégeler au printemps, les fonctionnaires chargés de la réglementation en C.-B. imposent des limites de charge pour éviter ou restreindre les dommages causés par des véhicules lourdement chargés. Jusqu'à récemment, la décision relative au moment où imposer ces limites était basée sur des critères subjectifs ou des dates traditionnelles, et avait donc tendance à être conservatrice. Il existe toutefois une technologie permettant de déterminer avec plus de précision à quel moment imposer des restrictions pour protéger l'intégrité de la surface de roulement tout en maximisant le nombre de jours de camionnage avant l'arrêt des activités au printemps. Le rapport documente l'expérience du ministère des Forêts de C.-B. dans l'application de cette technologie à deux routes de camionnage des billes dans le nord-ouest de la C.-B.
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Transport des copeaux de bois en hiver

https://library.fpinnovations.ca/en/permalink/fpipub40329
Author
Brown, Mark
Date
October 2001
Material Type
Research report
Field
Fibre Supply
Author
Brown, Mark
Date
October 2001
Material Type
Research report
Physical Description
10 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Transportation Infrastructure
Subject
Trailers
Operations
Gel
Advantage
Series Number
Avantage ; Vol. 1, No. 36
Language
French
Abstract
Remorques à copeaux
Copeaux de bois
Opérations hivernales
Copeaux de bois gelés
Poids parasite
Prévention
Temps morts
Abstract
Dans le calcul du taux de transport des copeaux de bois en hiver, on oublie souvent de prendre en considération les coûts imputables au gel des chargements (temps d'arrêt, perte de charge utile et temps de la main-d'oeuvre nécessaire pour l'enlèvement des copeaux). Les entrepreneurs ont essayé de nombreux moyens pour résoudre ce problème, et la plupart en sont arrivés à des solutions acceptables. Au cours des deux derniers hivers, FERIC a travaillé avec des entrepreneurs du nord-ouest de l'Ontario pour faire l'inventaire de leurs "bonnes pratiques" et essayer de nouvelles solutions. Le présent rapport dresse un bilan de ces bonnes pratiques et des nouvelles pratiques préventives relevées pendant l'étude de FERIC.
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Use of sprinklers and aqueous gel for structure protection from wildfire

https://library.fpinnovations.ca/en/permalink/fpipub40895
Author
Walkinshaw, Stew
Ault, Ray
Date
February 2008
Material Type
Research report
Field
Fibre Supply
Author
Walkinshaw, Stew
Ault, Ray
Date
February 2008
Material Type
Research report
Physical Description
10 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Wildfires
Gel
Advantage
Series Number
Advantage ; Vol. 9, No. 8
Language
English
Abstract
FPInnovations studied the effectiveness of sprinkler systems and aqueous gel for the protection of structures from wildfire. The study results may assist fire suppression personnel when making strategic decisions on wildland–urban interface fires. The time and resources required to set up the systems, water volumes used, structural damage, and structure temperatures were investigated.
Structure protection
Fire suppression
Sprinklers
Aqueous gel
Wildfires
Wildland– urban interface
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12 records – page 1 of 2.