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International Journal of Energy for a Clean Environment
SJR: 0.195 SNIP: 0.659 CiteScore™: 1.2

ISSN Imprimir: 2150-3621
ISSN On-line: 2150-363X

International Journal of Energy for a Clean Environment

Anteriormente Conhecido Como Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.2017020747
pages 113-122

PREVENTING AUTOIGNITION INSIDE THE BURNER WITH HIGH-TEMPERATURE OXIDANT PREHEATING

Boris Soroka
Gas Institute, National Academy of Sciences of Ukraine, 39 Degtyarivska Str., Kyiv, 03113, Ukraine
V. Zgurskyi
Gas Institute, National Academy of Sciences of Ukraine, 39 Degtyarivska Str., Kyiv, 03113, Ukraine
Aleksandr Kozlov
Gas Technology Institute, 1700 South Mount Prospect Road, Des Plaines, Illinois 60076, USA
Mark Y. Khinkis
Gas Technology Institute, 1700 S. Mount Prospect Rd., Des Plaines, IL, 60018 USA

RESUMO

Probability of autoignition inside a burner has been evaluated by means of comparing the autoignition delay time (ADT) with the residence time under the condition of ignition onset. The shorter the ADT or the greater the residence time, the higher the probability of the onset of ignition. Four chemical kinetics mechanisms, namely, GRI-mech 3.0, Konnov, CRECK, NG III (of 235–2642 equations and of 53–293 components) have been attracted for evaluating the autoignition temperature (AIT) to obtain the most adequate and reliably estimated one. Some empirical generalizations for ADT were used as well. An analysis of proper data has shown that increase in combustion air humidity would increase the ADT and reduce probability of the onset of autoignition.


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