Mathematical modeling of atmospheric fine particle-associated primary organic compound concentrations The ISS cabin was found to be a very clean environment with particulate levels substantially below the space shuttle and typical ground-based environments. These background levels are critical to the design of future smoke detectors. A precursor experiment (DAFT: Dust Aerosol measurement Feasibility Test) flew recently on the ISS and provided the first measurement of the background smoke particulate levels on the ISS.
The SAME experiment will make measurements of the particle size distribution of the smoke particulate from several typical spacecraft materials providing quantitative design data for spacecraft smoke detectors. To address this issue, the SAME ( Smoke Aerosol Measurement Experiment) experiment is manifested to fly on the ISS in 2007. Recent space shuttle experiments confirmed that, in some cases, increased particles sizes are seen in low-gravity and that the relative performance of the ISS (International Space Station) and space-shuttle smoke-detectors changes in low-gravity however, sufficient particle size information to design new detectors was not obtained. The removal of buoyancy reduces the velocities in the high temperature zones in flames, increasing the residence time of smoke particles and consequently allowing longer growth time for the particles. Owing to the absence of microgravity smoke data, all current spacecraft smoke detectors were designed based upon normal-g conditions. Proper design of a fire detector requires detailed knowledge of all of these signal sources so that a discriminating detector can be designed. Rapid fire detection requires the ability to differentiate fire signatures from background conditions and nuisance sources. Ruff, Gary Yuan, Zeng-guang Sheredy, William Funk, Greg
Particle and Smoke Detection on ISS for Next Generation Smoke Detectors The report summarizes the initial loading of data into the Fine Particle Emissions Information System (FPEIS), a computerized database on primary fine particle emissions to the atmosphere from stationary sources, designed to assist engineers and scientists engaged in fine particl. The relations between the rotating frequency and the motion of ring and charge dependency were investigated mainly by using an optical methodįINE PARTICLE EMISSIONS INFORMATION SYSTEM: SUMMARY REPORT (SUMMER 1976) The charges of particles increased and Γ also increased when the power of the halogen lamp was increased. We compared indoor air quality before and after the smoking ban by monitoring the indoor concentrations of fine (1) in these experimental conditions. Valente, Pasquale Forastiere, Francesco Bacosi, Antonella Cattani, Giorgio Di Carlo, Simonetta Ferri, Monica Figà -Talamanca, Irene Marconi, Achille Paoletti, Luigi Perucci, Carlo Zuccaro, PiergiorgioĪ smoking ban in all indoor public places was enforced in Italy on 10 January 2005. Exposure to fine and ultrafine particles from secondhand smoke in public places before and after the smoking ban, Italy 2005.