China Safety Science Journal ›› 2022, Vol. 32 ›› Issue (2): 59-65.doi: 10.16265/j.cnki.issn1003-3033.2022.02.009
• Safety engineering technology • Previous Articles Next Articles
CHEN Xiaokun1,2(), WANG Chenxi1,2,**(), ZHAI Xiaowei1,2
Received:
2021-11-20
Revised:
2022-01-08
Online:
2022-08-18
Published:
2022-08-28
Contact:
WANG Chenxi
CHEN Xiaokun, WANG Chenxi, ZHAI Xiaowei. Determination and kinetics analysis of coal ignition point based on thermal explosion method[J]. China Safety Science Journal, 2022, 32(2): 59-65.
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Tab.2
Kinetic parameters of coal before and after ignition point under different heating rates
升温速率 | 反应级数 | 燃点前 | 燃点后 | ||
---|---|---|---|---|---|
拟合函数表达式 | R2 | 拟合函数表达式 | R2 | ||
5 | 0.5 | y=81 309.55x+4.22 | 0.911 1 | y=77 233.00x-0.98 | 0.924 8 |
1 | y=87 216.39x+5.73 | 0.932 4 | y=99 228.46x+3.06 | 0.968 2 | |
1.5 | y=94 344.36x+7.54 | 0.943 5 | y=132 350.23x+9.11 | 0.936 4 | |
2 | y=102 558.67x+9.62 | 0.939 4 | y=173 579.29x+16.62 | 0.865 9 | |
2.5 | y=11 606.71x+11.91 | 0.922 0 | y=219 166.47x+24.91 | 0.807 5 | |
3 | y=121 276.47x+14.36 | 0.896 5 | y=267 219.99x+33.66 | 0.766 7 | |
10 | 0.5 | y=79 483.84x+3.33 | 0.940 1 | y=74 366.62x-1.91 | 0.945 9 |
1 | y=85 320.08x+4.76 | 0.957 1 | y=96 022.88x+1.95 | 0.984 0 | |
1.5 | y=92 249.34x+6.46 | 0.964 5 | y=12 7830.21x+7.58 | 0.956 4 | |
2 | y=100 176.96x+8.42 | 0.958 9 | y=167 316.43x+14.55 | 0.893 9 | |
2.5 | y=108 904.77x+10.57 | 0.941 8 | y=21 148.69x+22.29 | 0.840 2 | |
3 | y=118 245.52x+12.88 | 0.917 5 | y=257 489.20x+30.46 | 0.801 9 | |
15 | 0.5 | y=67 400.88x+0.69 | 0.895 1 | y=73 372.21x-2.41 | 0.940 3 |
1 | y=71 593.32x+1.79 | 0.913 3 | y=92 349.00x+0.93 | 0.980 4 | |
1.5 | y=76 545.00x+3.05 | 0.923 2 | y=121 747.90x+6.01 | 0.979 9 | |
2 | y=82 215.07x+4.51 | 0.920 7 | y=156 691.15x+12.07 | 0.949 7 | |
2.5 | y=88 444.86x+6.13 | 0.906 3 | y=195 659.65x+18.81 | 0.913 5 | |
3 | y=95 098.05x+7.85 | 0.883 8 | y=237 041.23x+25.98 | 0.88 24 |
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