Research Article
Influence of Gas from Long-Flame Coal Spontaneous Combustion on Gas Explosion Limit
Table 3
Statistics of explosion limit test data for combustible gases.
| CO explosion limit | C2H4 explosion limit | C2H6 explosion limit | CH4 explosion limit | CH4 explosion hazard | Explosion limit of mixed gas | Mixed gas explosion hazard | Lower explosive limit | Upper explosive limit | Lower explosive limit | Upper explosive limit | Lower explosive limit | Upper explosive limit | Lower explosive limit | Upper explosive limit | Lower explosive limit | Upper explosive limit |
| 12.1 | 73.8 | 2.7 | 35.6 | 3.2 | 14.9 | 5.1 | 15.5 | | | | | Explosion hazard H = 5.1 | Explosion hazard H = 12.2 | Explosion hazard H = 3.6 | Explosion hazard H = 2.0 | | | | | CO concentration | C2H4 concentration | C2H6 concentration | | | | | | 0 | 0 | 0 | 5.1 | 15.5 | 2.03 | 5.1 | 15.5 | 2.03 | 0.2 | 0 | 0 | 4.55 | 15.35 | 2.37 | 4.75 | 15.55 | 2.27 | 0.4 | 0 | 0 | 4.45 | 15.25 | 2.43 | 4.85 | 15.65 | 2.23 | 0.6 | 0 | 0 | 4.30 | 15.20 | 2.53 | 4.95 | 15.80 | 2.19 | 0.8 | 0 | 0 | 4.25 | 15.15 | 2.56 | 5.05 | 15.95 | 2.16 | 0 | 0.2 | 0 | 3.8 | 14.95 | 2.93 | 4.0 | 15.15 | 2.78 | 0 | 0.4 | 0 | 3.7 | 14.8 | 3.00 | 4.1 | 15.20 | 2.71 | 0 | 0.6 | 0 | 3.4 | 14.0 | 3.12 | 4.0 | 14.6 | 2.65 | 0 | 0.8 | 0 | 3.0 | 13.9 | 3.63 | 3.8 | 14.7 | 2.87 | 0 | 0 | 0.2 | 3.78 | 14.25 | 2.77 | 3.98 | 14.45 | 2.63 | 0 | 0 | 0.4 | 3.52 | 14.02 | 2.98 | 3.92 | 14.42 | 2.68 | 0 | 0 | 0.6 | 3.32 | 13.4 | 3.04 | 3.92 | 14.0 | 2.57 | 0 | 0 | 0.8 | 2.98 | 12.2 | 3.09 | 3.78 | 13.2 | 2.49 |
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