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Experimental Study on the Ignition and Extinction Characteristics of the Hydrothermal Flame
Author(s) -
Zhang Fengming,
Zhang Yong,
Xu Chunyan,
Chen Shouyan,
Chen Guifang,
Ma Chunyuan
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300571
Subject(s) - ignition system , extinction (optical mineralogy) , nozzle , combustion , materials science , hydrothermal circulation , mechanics , nuclear engineering , work (physics) , waste management , chemistry , chemical engineering , thermodynamics , mineralogy , engineering , physics , organic chemistry
An inner‐preheating transpiring‐wall reactor with a hydrothermal flame was designed and tested to avoid plugging in the preheating section. Hot water was used as auxiliary heating fluid to preheat the fuel to the ignition temperature. This work focused on the flame characteristics (i.e., the ignition and extinction processes, the ignition and extinction temperatures) inside the inner‐preheating transpiring‐wall reactor. The result shows that higher fuel concentrations and fuel flows permit lower ignition temperatures. The results of the nozzle configuration experiments show that lower velocities provide resistance to extinction.