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Experimental study of hydrogen/air premixed flame propagation in a closed channel with inhibitions for safety consideration
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Zhang, Chao, Wen, Jennifer X., Shen, Xiaobo and Xiu, Guangli (2019) Experimental study of hydrogen/air premixed flame propagation in a closed channel with inhibitions for safety consideration. International Journal of Hydrogen Energy, 44 (40). pp. 22654-22660. doi:10.1016/j.ijhydene.2019.04.032 ISSN 0360-3199.
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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2019.04.032
Abstract
An experimental study of hydrogen/air premixed flame propagation in a closed rectangular channel with the inhibitions (N2 or CO2) was conducted to investigate the inhibiting effect of N2 and CO2 on the flame properties during its propagation. Both Schlieren system and the pressure sensor were used to capture the evolution of flame shape and pressure changes in the channel. It was found that both N2 and CO2 have considerable inhibiting effect on hydrogen/air premixed flames. Compared with N2, CO2 has more prominent inhibition, which has been interpreted from thermal and kinetic standpoints. In all the flames, the classic tulip shape was observed. With different inhibitor concentration, the flame demonstrated three types of deformation after the classic tulip inversion. A simple theoretical analysis has also been conducted to indicate that the pressure wave generated upon the first flame-wall contact can affect the flame deformation depending on its meeting moment with the flame front. Most importantly, the meeting moment is always behind the start of tulip inversion, which suggests the non-dominant role of pressure wave on this featured phenomenon.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Journal or Publication Title: | International Journal of Hydrogen Energy | ||||||||
Publisher: | Elsevier BV | ||||||||
ISSN: | 0360-3199 | ||||||||
Official Date: | 23 August 2019 | ||||||||
Dates: |
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Volume: | 44 | ||||||||
Number: | 40 | ||||||||
Page Range: | pp. 22654-22660 | ||||||||
DOI: | 10.1016/j.ijhydene.2019.04.032 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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