Abstract
The effects of particle size on the structures of flame reaction zone and preheat zone of corn starch dust were investigated. Corn starch dust with three different average particle sizes were chosen to conduct explosion experiments in a half-closed vertical duct. A high-speed camera was used to record the flame propagation process and direct light emission images of flame propagation in duct were obtained. The structures of flame reaction zone and preheat zone were detected by an ion current probe and a fine thermocouple. The experimental results show that the structures of reaction zone and preheat zone vary with the particle size. There is a positive correlation between the particle size and the thickness of reaction zone and preheat zone. Meanwhile, the thickness of the two flame structures are determined under these experimental conditions. Additionally, the mass concentrations of dust clouds in duct are founded as a critical common factor for flame structure variation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Loss Prevention in the Process Industries
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
