Journal
FIRE AND MATERIALS
Volume 44, Issue 7, Pages 935-942Publisher
WILEY
DOI: 10.1002/fam.2896
Keywords
burner; diffusion flame; heat flux; slug calorimeter
Categories
Funding
- NASA [NNX15AD06A]
- NASA [809600, NNX15AD06A] Funding Source: Federal RePORTER
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The burning rate emulator (BRE) is a burner that emulates condensed fuel flames using gaseous fuel/inert mixtures by matching four properties: the heat of combustion; the heat of gasification; the laminar smoke point; and the surface temperature. Matching the heat of gasification requires measuring the burner heat flux, for which the BRE has embedded heat flux gauges and a copper top-plate calorimeter. Seven condensed fuels were emulated: acetone, ethanol, methanol, polyethylene, polymethylmethacrylate, polypropylene, and polystyrene. The gaseous fuels were methane, ethylene, and propylene, diluted with nitrogen. Emulation data and flame images are shown to demonstrate emulation accuracy. A new method of emulation is developed that shifts the focus on which properties are prioritized and yields similar to 15% improvement in flame height. Calibration and use of the calorimeter are shown to have improved accuracy (within 5%) which provides confidence in the results.
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