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Measurement of Smoke Particle Size under Low-Gravity Conditions
- David L. Urban - NASA Glenn Research Center ,
- Gary A. Ruff - NASA Glenn Research Center ,
- George W. Mulholland - University of Maryland ,
- Thomas G. Cleary - National Institute of Standards and Technology ,
- Jiann C. Yang - National Institute of Standards and Technology ,
- Zengguang Yuan - National Center for Space Exploration Research
ISSN: 1946-3855, e-ISSN: 1946-3901
Published June 29, 2008 by SAE International in United States
Citation: Urban, D., Ruff, G., Mulholland, G., Cleary, T. et al., "Measurement of Smoke Particle Size under Low-Gravity Conditions," SAE Int. J. Aerosp. 1(1):317-324, 2009, https://doi.org/10.4271/2008-01-2089.
Smoke detection experiments were conducted in the Microgravity Science Glovebox (MSG) on the International Space Station (ISS) during Expedition 15 in an experiment entitled Smoke Aerosol Measurement Experiment (SAME). The preliminary results from these experiments are presented. In order to simulate detection of a prefire overheated-material event, samples of five different materials were heated to temperatures below the ignition point. The smoke generation conditions were controlled to provide repeatable sample surface temperatures and air flow conditions. The smoke properties were measured using particulate aerosol diagnostics that measure different moments of the size distribution. These statistics were combined to determine the count mean diameter which can be used to describe the overall smoke distribution.
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