Investigation of particle density on dust cloud dynamics in a minimum ignition energy apparatus using digital in-line holography

Solids industries have inherent dust explosion hazards. Process risk assessment parameters include overpressure, deflagration index, and minimum ignition energy. These are influenced by dynamics, such as turbulence concentration. Cloud dynamics affected particle morphology, density, size, polydispersity, which affect parameters. Influence of properties density during parameter measurement is often overlooked. This study examines influence on clouds in the Kühner MIKE3. Two particles with different but similar size morphology were examined high-speed digital in-line holography, providing velocity concentration measurements prior to ignition. Results show denser lower compared lighter after delay. The results highlight effect cloud make a case for be considered setting delay order get consistent test results.