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ISSN Online: 2379-1748

8th Thermal and Fluids Engineering Conference (TFEC)
March, 26-29, 2023, College Park, MD, USA

Smoke Measurements from a High-flux Ignition Experiment

Get access (open in a dialog) pages 219-229
DOI: 10.1615/TFEC2023.cnm.046246


Smoke may be defined as the particulate products from fire and is composed of organics originating from unburnt fuel and soot, which is mostly carbon and is formed in the rich side of the flame. The fire community regularly measures smoke emissions using the cone calorimeter (CC) and the fire propagation analyzer (FPA) devices via laser extinction. Their measurements are conducted over the burn time of the material, generally minutes. Our high-flux exposures from concentrated solar irradiance result in emissions lasting only a few seconds. We have adapted the historical methods to our application to permit similar quantitative assessments of smoke. We illustrate here our modified procedure and present some results of the testing performed by exposing materials to concentrated solar energy. An assessment of the uncertainty in the smoke yield measurements is made. The data are expected to contribute to the body of knowledge on the emissions of smoke from ignitions caused by more unconventional initiating events involving very high heat fluxes.