ABSTRACT The ignition and combustion behavior of particle clouds is a key factor in designing and operating burners and combustion chambers. Because particle–particle interactions significantly impact these processes, research beyond single‐particle studies is necessary. This study analyzes the influence of particle size, water content, and particle cloud density on ignition and combustion behavior using spectroscopic measurements. The results show that ignition delay time increases with increasing particle size and cloud density due to reduced heating rates. In contrast, combustion duration is primarily determined by water content and cloud density. Fragmentation induced by moisture shortens, whereas the high amount of volatiles obstructs oxygen diffusion in dense particle clouds prolongs burnout.
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Matteo Giesen
Daniel Bernhardt
Michael Beckmann
Chemie Ingenieur Technik
Technische Universität Dresden
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Giesen et al. (Thu,) studied this question.
www.synapsesocial.com/papers/69c7724e8bbfbc51511e2a45 — DOI: https://doi.org/10.1002/cite.70091