Effect of N2/CO2 dilution on laminar burning velocity of H2COO2 oxyfuel premixed flame
(2015) In International Journal of Hydrogen Energy 40(2). p.12031211 Abstract
 The dilution effect of N2/CO2 on the laminar burning velocity of H2COO2 mixtures was investigated. The dilution fraction of N2 and CO2 in the unburned mixtures varied from 0% to 70% and 0%50%, respectively, and H2 content in H2CO fuels altered from 5% to 100%. All the studies were carried out at standard laboratory conditions (1 atm, 298 K) with equivalence ratio changing from 0.6 to 2.0. The Heat flux method and OHPLIF (Planar LaserInduced Fluorescence) based Bunsen flame method were employed to measure the laminar burning velocities. The Li mechanism was used in simulations, due to its good prediction of laminar burning velocities. Based on extensive experimental results, the correlations between dilution fraction and laminar... (More)
 The dilution effect of N2/CO2 on the laminar burning velocity of H2COO2 mixtures was investigated. The dilution fraction of N2 and CO2 in the unburned mixtures varied from 0% to 70% and 0%50%, respectively, and H2 content in H2CO fuels altered from 5% to 100%. All the studies were carried out at standard laboratory conditions (1 atm, 298 K) with equivalence ratio changing from 0.6 to 2.0. The Heat flux method and OHPLIF (Planar LaserInduced Fluorescence) based Bunsen flame method were employed to measure the laminar burning velocities. The Li mechanism was used in simulations, due to its good prediction of laminar burning velocities. Based on extensive experimental results, the correlations between dilution fraction and laminar burning velocity reduction rate were analyzed. It was found that, for a given dilution fraction, the reduction in laminar burning velocity is largely independent equivalence ratio and fuel H2CO mole fraction. This behavior does not extend to all fuels, e.g. methane. Exploiting the lack of dependence on equivalence ratio and fuel composition, a unified correlation equation was proposed which can be used to predict the laminar burning velocities of H2CO fuels for given fuel component, dilution rate and equivalence ratio. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/5193563
 author
 Weng, W. B. ; Wang, Z. H. ; He, Y. ; Whiddon, R. ; Zhou, Y. J. ; Li, Zhongshan ^{LU} and Cen, K. F.
 organization
 publishing date
 2015
 type
 Contribution to journal
 publication status
 published
 subject
 keywords
 Syngas, Laminar burning velocity, Mixture dilution, Heat flux method, OHPLIF
 in
 International Journal of Hydrogen Energy
 volume
 40
 issue
 2
 pages
 1203  1211
 publisher
 Elsevier
 external identifiers

 wos:000349270600031
 scopus:84916910491
 ISSN
 18793487
 DOI
 10.1016/j.ijhydene.2014.11.056
 language
 English
 LU publication?
 yes
 id
 72d5e476d4d9493d8c05de08f0432062 (old id 5193563)
 date added to LUP
 20160401 14:05:17
 date last changed
 20201004 05:38:20
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