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chemkin刚起步的菜鸟向神人请教一个表面反应的问题,希望能得到帮助,十分感谢!
例如木炭的表面燃烧
C(s)+ O2 = CO + O (s)
O (s) + 2 C (B) = CO + C(s)
---C(s) , O(s)是surface active sites, C (B) 是bulk.
该如何确定一下表面 active sites的密度,热力参数, 以及bulk的热力参数。
A Tutorial on Chemkin(http://wenku.baidu.com/view/35a270b369dc5022aaea005e.html)这个里面说把不知道的sites的热力参数都弄成0, 我试了不行啊。
-----------------------input 的列表
SITE/CARBON_SURFACE/ SDEN/1.17E-9/
C(S) O (s) END
BULK C(B) /9.25/ END
THERMO
300.0 1000.0 3000.0
C(s) C 1 I 0300.00 1000.00 3000.00 1
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 2
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 3
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 4
O(s) O 1 I 0300.00 1000.00 3000.00 1
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 2
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 3
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 4
C(B) C 1 I 0300.00 1000.00 3000.00 1
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 2
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 3
0.00000000E+00 0.00000000E+00 0.00000000E+00 0.00000000E+00 4
END
REACTIONS
C(s)+ O2 = CO + O (s)
O (s) + C (B) + C (B)= CO + C(s)
END
----------------------------------
output 关于表面的结果就是
SYNTAX ERROR, OR ILLEGAL VALUE
Error...fit temperatures are not in ascending order;values found are:
0.000000000000000E+000 3000.00000000000 1000.00000000000
SITE: CHAR_SURFACE 0.117E-08 moles/cm**2
3. C(S) 0.0000E+00 1 0 0 0 0 0
Error...no thermodynamic properties for species C(S)
4. O(S) 0.0000E+00 1 0 0 0 0 0
Error...no thermodynamic properties for species O(S)
BULK: BULK1
5. C(B) 0.0000E+00 9.250E+00 g/cm**3 0 0 0 0 0
Error...thermodynamics temperatures must be in order...
SURFACE REACTIONS CONSIDERED A b E
1. C(S)+O2=>CO+O(S) 2.20E+14 0.0 167.4
Error...reaction does not balance in elements/mass...
2. O(S)+C(B)+C(B)<=>CO+C(S) 1.00E+08 0.0 0.0
Error...reaction does not balance in elements/mass...
=
=
=
该如何调整下啊?请大神指导下菜鸟。谢谢啦!
[ 本帖最后由 meng9019 于 2014-1-17 15:31 编辑 ] |
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