TY - JOUR
T1 - Explosion characteristics of hydrogen-nitrogen-air mixtures at elevated pressures and temperatures
AU - Tang, Chenglong
AU - Huang, Zuohua
AU - Jin, Chun
AU - He, Jiajia
AU - Wang, Jinhua
AU - Wang, Xibin
AU - Miao, Haiyan
N1 - Funding Information:
The study is supported by the National Natural Science Foundation of China (50636040, 50521604), and the National Basic Research Program (2007CB210006).
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/1/1
Y1 - 2009/1/1
N2 - An experimental study on the combustion characteristics of nitrogen diluted hydrogen was conducted in a constant volume combustion vessel over a wide range of equivalence ratios and dilution ratios at elevated pressures and temperatures. The explosion characteristics such as the explosion pressure, the combustion duration, the maximum rate of pressure rise, the deflagration index and the normalized mass burning rate were derived. The result shows that a short combustion duration and higher normalized mass burning rate were presented with the increase of equivalence ratio. With the increase of initial temperature, the explosion pressure, the maximum rate of pressure rise and the deflagration index were decreased, and a shorter combustion duration and higher normalized mass burning rate were presented. With the increase of initial pressure, the explosion pressure, the maximum rate of pressure rise and the deflagration index increase, a shorter combustion duration and higher normalized mass burning rate were presented. Nitrogen dilution significantly reduces the normalized mass burning rate and the deflagration index and thus the potential of explosion hazards.
AB - An experimental study on the combustion characteristics of nitrogen diluted hydrogen was conducted in a constant volume combustion vessel over a wide range of equivalence ratios and dilution ratios at elevated pressures and temperatures. The explosion characteristics such as the explosion pressure, the combustion duration, the maximum rate of pressure rise, the deflagration index and the normalized mass burning rate were derived. The result shows that a short combustion duration and higher normalized mass burning rate were presented with the increase of equivalence ratio. With the increase of initial temperature, the explosion pressure, the maximum rate of pressure rise and the deflagration index were decreased, and a shorter combustion duration and higher normalized mass burning rate were presented. With the increase of initial pressure, the explosion pressure, the maximum rate of pressure rise and the deflagration index increase, a shorter combustion duration and higher normalized mass burning rate were presented. Nitrogen dilution significantly reduces the normalized mass burning rate and the deflagration index and thus the potential of explosion hazards.
KW - Dilution
KW - Explosion characteristics
KW - Hydrogen
UR - http://www.scopus.com/inward/record.url?scp=57949103543&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2008.10.028
DO - 10.1016/j.ijhydene.2008.10.028
M3 - Article
AN - SCOPUS:57949103543
VL - 34
SP - 554
EP - 561
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 1
ER -