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Oxy-fuel Combustion of Ethanol in Premixed Flames

Nauclér, Jenny LU ; Christensen, Moah LU ; Heimdal Nilsson, Elna LU and Konnov, Alexander LU (2012) In Energy & Fuels 26(7). p.4269-4276
Abstract
First measurements of the adiabatic laminar burning velocities of lean ethanol + oxygen + carbon dioxide flames, at 1 atm and initial gas mixture temperatures of 298, 318, and 338 K, are presented. The oxygen content O-2/(O-2 + CO2) in the artificial air was 35%. The laminar burning velocities were determined using the heat flux method, where a non-stretched flame is stabilized under adiabatic conditions. The measurements were found in qualitative agreement with modeling performed using the Marinov model, the San Diego model, and the model by Leplat et al. In comparison to experimental data, the Marinov model gave the best quantitative agreement Notable quantitative differences between the models were analyzed using sensitivity analysis... (More)
First measurements of the adiabatic laminar burning velocities of lean ethanol + oxygen + carbon dioxide flames, at 1 atm and initial gas mixture temperatures of 298, 318, and 338 K, are presented. The oxygen content O-2/(O-2 + CO2) in the artificial air was 35%. The laminar burning velocities were determined using the heat flux method, where a non-stretched flame is stabilized under adiabatic conditions. The measurements were found in qualitative agreement with modeling performed using the Marinov model, the San Diego model, and the model by Leplat et al. In comparison to experimental data, the Marinov model gave the best quantitative agreement Notable quantitative differences between the models were analyzed using sensitivity analysis and reaction path diagrams. Reaction path analysis showed that the Marinov and the San Diego models have the same 12 most important species. Among the 12 most important species in the model of Leplat et al., 10 species are in common with the other two models. According to predictions of the Marinov model, combustion of ethanol in air and at oxy-fuel conditions proceeds via the same reaction path; however, the sensitivities of the key reactions are different. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Energy & Fuels
volume
26
issue
7
pages
4269 - 4276
publisher
The American Chemical Society
external identifiers
  • wos:000306503100033
  • scopus:84863898351
ISSN
0887-0624
DOI
10.1021/ef3008085
language
English
LU publication?
yes
id
c4336b47-d07c-442e-82e9-1c2c7b234bd8 (old id 2979346)
date added to LUP
2012-08-23 09:17:59
date last changed
2017-01-01 05:40:14
@article{c4336b47-d07c-442e-82e9-1c2c7b234bd8,
  abstract     = {First measurements of the adiabatic laminar burning velocities of lean ethanol + oxygen + carbon dioxide flames, at 1 atm and initial gas mixture temperatures of 298, 318, and 338 K, are presented. The oxygen content O-2/(O-2 + CO2) in the artificial air was 35%. The laminar burning velocities were determined using the heat flux method, where a non-stretched flame is stabilized under adiabatic conditions. The measurements were found in qualitative agreement with modeling performed using the Marinov model, the San Diego model, and the model by Leplat et al. In comparison to experimental data, the Marinov model gave the best quantitative agreement Notable quantitative differences between the models were analyzed using sensitivity analysis and reaction path diagrams. Reaction path analysis showed that the Marinov and the San Diego models have the same 12 most important species. Among the 12 most important species in the model of Leplat et al., 10 species are in common with the other two models. According to predictions of the Marinov model, combustion of ethanol in air and at oxy-fuel conditions proceeds via the same reaction path; however, the sensitivities of the key reactions are different.},
  author       = {Nauclér, Jenny and Christensen, Moah and Heimdal Nilsson, Elna and Konnov, Alexander},
  issn         = {0887-0624},
  language     = {eng},
  number       = {7},
  pages        = {4269--4276},
  publisher    = {The American Chemical Society},
  series       = {Energy & Fuels},
  title        = {Oxy-fuel Combustion of Ethanol in Premixed Flames},
  url          = {http://dx.doi.org/10.1021/ef3008085},
  volume       = {26},
  year         = {2012},
}