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Use of Distributed Temperature Sensing Technology to Characterize Fire Behavior


Authors: Douglas Cram
Owners: CTEMPs OSU-UNR
Resource type:Composite Resource
Created:Dec 29, 2017 at 11:41 p.m.
Last updated: Apr 09, 2018 at 8:45 p.m. by CTEMPs OSU-UNR

Abstract

We evaluated the potential of a fiber optic cable connected to distributed temperature sensing (DTS) technology to withstand wildland fire conditions and quantify fire behavior parameters. We used a custom-made ‘fire cable’ consisting of three optical fibers coated with three different materials—acrylate, copper and polyimide. The 150-m cable was deployed in grasslands and burned in three prescribed fires. The DTS system recorded fire cable output every three seconds and integrated temperatures every 50.6 cm. Results indicated the fire cable was physically capable of withstanding repeated rugged use. Fiber coating materials withstood temperatures up to 422 °C. Changes in fiber attenuation following fire were near zero (−0.81 to 0.12 dB/km) indicating essentially no change in light gain or loss as a function of distance or fire intensity over the length of the fire cable. Results indicated fire cable and DTS technology have potential to quantify fire environment parameters such as heat duration and rate of spread but additional experimentation and analysis are required to determine efficacy and response times. This study adds understanding of DTS and fire cable technology as a potential new method for characterizing fire behavior parameters at greater temporal and spatial scales.

Raw project data is available by contacting ctemps@unr.edu

Subject Keywords

distributed temperature sensing,prescribed fire,rangeland,spatial mapping,CTEMPs,DTS,fiber optic

How to cite

Cram, D. (2018). Use of Distributed Temperature Sensing Technology to Characterize Fire Behavior, HydroShare, http://www.hydroshare.org/resource/da0028e530e545bfa70940fcfb57e546

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
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Name Organization Address Phone Author Identifiers
Douglas Cram

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