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It would be desirable to have consistent full, skeletal, and
reduced mechanisms for H2, CO, and CH4 that include NO chemistry
and have been tested for a wide range of appropriate conditions.
As these do not exist at present, the following reduced mechanisms
are being made available to facilitate consistent comparisons
of model calculations. These mechanisms were contributed by
TNF participants, and most have been used in calculations of
TNF target flames. They do not necessarily represent the best
available mechanisms. However, their performance in the context
of the TNF flames has been reasonably well documented. All
mechanisms listed below are in Chemkin compatible format.
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H2 |
5-step reduced mechanism of Chen,
Chang, and Koszykowski, Combust.
Sci. Tech. 1995, vol 110-111, pp.
505-529. |
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CO/H2/N2 |
6-step reduced mechanism from
J-Y Chen intended for calculation
of the Sandia/ETH-Zurich CO/H2/N2 flames.
This mechanism has had limited
testing, as described in the documentation. |
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CH4 |
Various calculations of CH4 and
natural gas flames presented at
the TNF Workshops have used detailed
or reduced versions of several
mechanisms, including GRI Mech
(versions 1.2, 2.11, and 3.0) and
the mechanisms from Lindstedt and
Warnatz. Only some are available
for posting on the web. Comparisons
of several detailed and reduced
mechanisms are included in the
TNF5 Proceedings and in Barlow
et al. Combust. Flame 127:2102-2118
(2001). Differences in major species
results from these mechanisms are
considered to be small. Differences
among NO predictions can be substantial.
ARM2 as used in calculations
of methane flames by Steve Pope’s
group at Cornell. This is a 16-step
reduced mechanism, which is based
on GRI Mech 2.11 and includes NO. |
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Three reduced mechanisms from
J-Y Chen, including 12-step (from
GRI 2.11), 13-step (from GRI 3.0),
and 15-step (from GRI 3.0). All
three reduced mechanisms include
NO chemistry. |
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A detailed mechanism from Lindstedt and coworkers (48 species, 303 reactions) has been made available in Chemkin II format.
Windows/UNIX |
Lindstedt CH4 (to be updated soon) |
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CH3OH |
Peter Lindstedt and J-Y Chen
collaborated to provide a chemkin
compatible reduced mechanism for
methanol, which is consistent with
the reduced mechanism reported
by R.P. Lindstedt and M.P. Meyer. |
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