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Effectiveness of retardant on mulch fuels: a case study at Pelican Mountain, 2018

https://library.fpinnovations.ca/en/permalink/fpipub19843
Author
Hsieh, Rex
Date
March 2020
Material Type
Research report
Field
Fibre Supply
Author
Hsieh, Rex
Contributor
Canadian Forest Services (CFS)
Natural Resources Canada (NRC)
Alberta Agriculture and Forestry (AAF)
Date
March 2020
Material Type
Research report
Physical Description
27 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Fire retardant
Fuel treatment
Mulching
Mulch
FPI TR
Retardant
Series Number
Technical Report ; TR 2020 n.7
Language
English
Abstract
Mulching is a common method of fuel treatment. However, it is not currently listed by the U.S. Forest Service as a fuel type in its recommendations for fire retardant coverage levels. FPInnovations researchers set up plots with different coverage levels of retardant on a mulch fuel bed and collected fire behaviour data when a fire interacted with these plots. The results are intended to help wildfire agencies understand the effectiveness of retardant on mulch fuels in developing better suppression plans.
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Fuel amendment as a forest fuel removal treatment: exploratory trials in black spruce fuels at the Fort Providence Wildfire Experimental Site

https://library.fpinnovations.ca/en/permalink/fpipub36410
Author
Hvenegaard, Steven
Date
May 2020
Material Type
Research report
Field
Fibre Supply
Author
Hvenegaard, Steven
Contributor
Northwest Territories Environment and Natural Resources
Date
May 2020
Material Type
Research report
Physical Description
15 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Fire
Crown fire
Mulch
Treatment
Black spruce
FPI TR
Picea mariana
Series Number
Technical Reports ; TR 2020 n.21
Language
English
Abstract
A fuel amendment treatment is proposed as a technique that can allow prescribed burning in hazardous fuels during low to moderate fire hazard conditions to minimize the risk of fire escape. In August 2017, a fuel amendment technique was applied at the Fort Providence Wildfire Experimental Site. In October 2019, a burn trial was conducted in a plot treated with the fuel amendment technique and fire spread to adjacent fuels was documented. Future documentation at this site will include assessing crown mortality to determine the effectiveness of the treatment.
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Helitorch redesign: field test results and modifications

https://library.fpinnovations.ca/en/permalink/fpipub7721
Author
Finn, Dave
Ackerman, Mark
Campbell, Roy
Date
October 2020
Edition
53070
Material Type
research report
Field
Fibre Supply
Project class. Field testing was conducted during AFF wildfire field exercises and actual fire
Author
Finn, Dave
Ackerman, Mark
Campbell, Roy
Date
October 2020
Edition
53070
Material Type
research report
Physical Description
5 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Wildfires
Forestry
Forest fire
Series Number
InfoNote ; 2020 n. 12
Language
English
Abstract
The Alberta Agriculture and Forestry (AFF) Wildfire Management Branch Ignition Specialists Working Group has endorsed a collaborative project to develop a redesigned helitorch. The goal of this project is to have an acceptable and proven replacement helitorch based on extensive testing.
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InfoNote2020N12.PDF

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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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Validating the GS-61 on-board mixing system for water-enhancer use with heavy helicopters

https://library.fpinnovations.ca/en/permalink/fpipub53019
Author
Refai, Razim
Hsieh, Rex
Date
August 2020
Material Type
research report
Field
Fibre Supply
fire management: Qualified by US Forest Service in accordance with Forest Service Specification 5100
Author
Refai, Razim
Hsieh, Rex
Date
August 2020
Material Type
research report
Physical Description
13 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 2020 N 31
Language
English
Abstract
Alberta Agriculture and Forestry (AAF) asked FPInnovations to conduct a field trial of two heavy helicopters that had recently been installed with on-board injection and mixing systems. The study focussed on determining the accuracy and reproducibility of these systems to produce effectively mixed water-enhancers for aerial delivery during wildfire suppression operations. These field trials were conducted north of Slave Lake, Alta. in June 2020. This report discusses the background, methodology, and outcomes of this equipment validation test.
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Wildfire suppressant rheology. Impact of water quality on water-enhancer viscosity

https://library.fpinnovations.ca/en/permalink/fpipub8008
Author
Refai, Razim
Yang, Junyi
Tsai, Peichun Amy
Date
October 2020
Material Type
Research report
Field
Fibre Supply
burning wildfire. Indirect-attack operations often rely on dropping long-term retardants ahead of a fire
Author
Refai, Razim
Yang, Junyi
Tsai, Peichun Amy
Contributor
University of Alberta
Date
October 2020
Material Type
Research report
Physical Description
25 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Wildfire Operations
Subject
Fire retardant
Retardant
Viscosity
Water
FPI TR
Series Number
Technical Report ; TR 2020 n.52
Location
Alberta
Language
English
Abstract
An important characteristic of the majority of the water-enhancing products on the wildfire suppression market is their ability to increase the viscosity of water. This increase in viscosity is linked to their performance. While performance of these products is key, there are several external variables that can influence how these suppressants physically behave. One such external variable is water quality, which is anecdotally known to impact water-enhancing products. This study aimed to understand how water quality—in particular, hardness—affects the viscosity of various water-enhancing products at different mix ratios. Understanding how water quality affects the viscosity of these products can offer insight into (1) which products are highly sensitive to water quality changes, and (2) how the target viscosity of a mixed product can be affected by water quality.
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6 records – page 1 of 1.