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SoFIE-MIST Imagery

jsc2024e053516 (8/8/2024) --- A plexiglass rod burns in microgravity for the Solid Fuel Ignition and Extinction - Material Ignition and Suppression Test (SoFIE-MIST) investigation. Once each rod is ignited, the flame spreads upstream from the ignition end of the rod. As tests progress, the flame spreads along the rod, consuming oxygen. Once the oxygen concentration drops low enough, the flame extinguishes due to natural oxygen depletion. Data to measure the oxygen concentration, flow rate, and heat loss is obtained at the three test pressures. SoFIE-MIST aims to improve understanding of early fire growth behavior and validate models for material flammability, helping to inform the selection of safer materials for future space facilities and determine the best methods for extinguishing fires in space.

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