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Small Skeletal Kinetic Mechanism for Kerosene Combustion

Zettervall, N. LU ; Fureby, C. and Nilsson, E. J K LU (2016) In Energy and Fuels 30(11). p.9801-9813
Abstract

The development and validation of a new skeletal mechanism for kerosene combustion, suitable for reacting direct-, large-eddy, and Reynolds averaged Navier-Stokes Simulations, are presented. The mechanism consists of 65 irreversible reactions between 22 species and is built on a global fuel breakdown approach to produce a subset of C2 intermediates. A more detailed set of reactions for H/O/C1 chemistry largely determines the combustion characteristics. The mechanism is validated for combustion characteristics related to ignition, flame propagation, and flame extinction over a wide range of pressure, temperature, and equivalence ratios. Agreement with experiments and a more complex reference mechanism are excellent... (More)

The development and validation of a new skeletal mechanism for kerosene combustion, suitable for reacting direct-, large-eddy, and Reynolds averaged Navier-Stokes Simulations, are presented. The mechanism consists of 65 irreversible reactions between 22 species and is built on a global fuel breakdown approach to produce a subset of C2 intermediates. A more detailed set of reactions for H/O/C1 chemistry largely determines the combustion characteristics. The mechanism is validated for combustion characteristics related to ignition, flame propagation, and flame extinction over a wide range of pressure, temperature, and equivalence ratios. Agreement with experiments and a more complex reference mechanism are excellent for laminar burning velocities and extinction strain rate, while ignition delays are overpredicted at stoichiometric and rich conditions. Concentration profiles for major stable products are in agreement with reference mechanism, and also a range of intermediate species and radicals shows sufficient agreement. The skeletal mechanism shows an overall good performance in combination with a numerical stability and short computation time, making it highly suitable for combustion Large Eddy Simulation (LES).

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Energy and Fuels
volume
30
issue
11
pages
13 pages
publisher
The American Chemical Society
external identifiers
  • scopus:84996563881
  • wos:000388428800110
ISSN
0887-0624
DOI
10.1021/acs.energyfuels.6b01664
language
English
LU publication?
yes
id
66a9fc33-2f89-48de-b1f3-c61519ab3678
date added to LUP
2016-12-12 09:44:53
date last changed
2017-09-18 11:31:01
@article{66a9fc33-2f89-48de-b1f3-c61519ab3678,
  abstract     = {<p>The development and validation of a new skeletal mechanism for kerosene combustion, suitable for reacting direct-, large-eddy, and Reynolds averaged Navier-Stokes Simulations, are presented. The mechanism consists of 65 irreversible reactions between 22 species and is built on a global fuel breakdown approach to produce a subset of C<sub>2</sub> intermediates. A more detailed set of reactions for H/O/C<sub>1</sub> chemistry largely determines the combustion characteristics. The mechanism is validated for combustion characteristics related to ignition, flame propagation, and flame extinction over a wide range of pressure, temperature, and equivalence ratios. Agreement with experiments and a more complex reference mechanism are excellent for laminar burning velocities and extinction strain rate, while ignition delays are overpredicted at stoichiometric and rich conditions. Concentration profiles for major stable products are in agreement with reference mechanism, and also a range of intermediate species and radicals shows sufficient agreement. The skeletal mechanism shows an overall good performance in combination with a numerical stability and short computation time, making it highly suitable for combustion Large Eddy Simulation (LES).</p>},
  author       = {Zettervall, N. and Fureby, C. and Nilsson, E. J K},
  issn         = {0887-0624},
  language     = {eng},
  month        = {11},
  number       = {11},
  pages        = {9801--9813},
  publisher    = {The American Chemical Society},
  series       = {Energy and Fuels},
  title        = {Small Skeletal Kinetic Mechanism for Kerosene Combustion},
  url          = {http://dx.doi.org/10.1021/acs.energyfuels.6b01664},
  volume       = {30},
  year         = {2016},
}