Fire Emulator/Detector Evaluator

Metadata Updated: March 8, 2017

Description:The fire emulator/detector evaluator (FE/DE) is a computer-controlled flow tunnel used to re-create the environments surrounding detectors in the early stages of fire and background environments that give rise to false alarms. The flow velocity, temperature, humidity, carbon monoxide, carbon dioxide, and hydrocarbon gas concentration, and smoke or nuisance aerosol concentration are controlled to emulate burgeoning fire conditions or nuisance sources. The input controls may be obtained from full-scale fire experiments, computer fire models, or heuristic formulations.Specifications / Capabilities:The FE/DE can provide control of the flow velocity over a range from 2 cm/s to over 1.5 m/s. Temperature change is achieved by feedback controlled electrical heating elements with maximum temperatures exceeding 80 oC depending on the flow velocity. Carbon monoxide, carbon dioxide, and hydrocarbon gas concentrations are independently controlled via electronic mass flow controllers. Black smoke is generated by a propane diffusion flame burner with smoke concentration controlled by fuel flow and the damper control from the burner to the FE/DE duct. Smokes from cotton smolder and wood pyrolysis represent smolder smoke sources. Nuisance sources include cooking activities, tobacco smoke, humidity and condensing water vapor, and dusts. Routine measurements at the detector location include light extinction, temperature, flow velocity, combustion gas concentrations, and water concentration. Detailed measurements of the aerosol number and mass concentration, and size distribution measurements are possible along with detailed 2-D velocity measurements around detector housings with a 2 component LDV.Scientific Opportunities / Applications:The FE/DE is being used in ongoing research concerning low air speed smoke entrance effects in detectors, test and evaluation methodologies for multi-sensor fire detection, modeling of detector output to support real-time computing of building fire environments, development of algorithms for multi-sensor, multi-function detectors, and emulation of aircraft cargo compartment fire conditions to evaluate current and improved detector designs.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date March 8, 2017
Metadata Updated Date March 8, 2017

Metadata Source

Harvested from Federal Laboratory Consortium Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date March 8, 2017
Metadata Updated Date March 8, 2017
Publisher Federal Laboratory Consortium
Unique Identifier AC64A762-588C-4C88-967B-AB920C0C8F5A
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Flcbusinessurl https://flcbusiness.federallabs.org/#/laboratory/5705
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Harvest Source Id 5859cfed-553c-48de-a478-b67b5225f6fc
Harvest Source Title Federal Laboratory Consortium Data.json
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Source Hash b73be7aec7c7f30399871bda76696939e4d0b752
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