期刊
CHEMICAL ENGINEERING SCIENCE
卷 138, 期 -, 页码 810-813出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2015.09.013
关键词
Upper flammability limit; Diluent; Theoretical model; Threshold temperature
资金
- National Natural Science Foundation of China [51206117]
This paper proposed a method using threshold temperature to evaluate upper flammability limit of a hydrocarbon diluted with an inert gas. A priority hypothesis for the consumption of the available oxygen was introduced. A linear relation model that could be applied for evaluating upper flammability limit of any low hydrocarbon diluted with a specific inert gas was founded theoretically. Examination of the model has been conducted on existing experimental data, including the cases of methane, propane, propylene, ethylene and isobutane. Results show that, given an inert gas, there may be a general critical temperature that could fit to any low hydrocarbon in case that the inert gas is not involved in combustion kinetics. The threshold temperatures recommended for carbon dioxide and nitrogen are 1700 K and 1650 K, respectively. The model is further compared to a similar published model and is shown to be far more accurate. (C) 2015 Elsevier Ltd. All rights reserved.
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