Experimental study on overpressure and flame propagation of coal dust explosions for various coal types in a confined vessel

Key Points

• Flame propagation was significantly influenced by different coal types and the resulting dust characteristics.
• Maximum overpressure measurements reached 5.8 bar under certain conditions with specific coal types.
• Experimental analysis conducted within a confined vessel allowed for controlled observation of explosion dynamics.
• Understanding these explosion behaviors in coal dust can guide safety measures and coal handling standards.