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This project investigates soot particle morphology and light attenuation properties during combustion under Normal gravity and Microgravity. High-Resolution Scanning Electron Microscopy (HRSEM) was used for detailed observation, addressing limitations of traditional techniques like TEM and SEM. A methodology was developed for sample preparation and analysis of soot morphology, including particle size distribution and aggregation. MATLAB was employed to process images of soot-laden flames, estimating particle diameters and calculating soot volume fractions using a novel light attenuation approach. Materials tested include Cellulose (flaming) and Nomex (flaming) and Kapton and Silicon Rubber (smouldering). The findings enhance understanding of fire safety in spacecraft and contribute to improved combustion diagnostics.

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Comparative Analysis of Soot Formation in Normal Gravity and Microgravity

  • 会议论文

  • 发表日期：

    2026年

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  • Aditya Sai Deepak,
  • Lelin Adhikari,
  • T. M. Muruganandam,
  • Amit Kumar

摘要

This project investigates soot particle morphology and light attenuation properties during combustion under Normal gravity and Microgravity. High-Resolution Scanning Electron Microscopy (HRSEM) was used for detailed observation, addressing limitations of traditional techniques like TEM and SEM. A methodology was developed for sample preparation and analysis of soot morphology, including particle size distribution and aggregation. MATLAB was employed to process images of soot-laden flames, estimating particle diameters and calculating soot volume fractions using a novel light attenuation approach. Materials tested include Cellulose (flaming) and Nomex (flaming) and Kapton and Silicon Rubber (smouldering). The findings enhance understanding of fire safety in spacecraft and contribute to improved combustion diagnostics.