Table 5 Dust cloud concentration vs. equivalence ratio for different coal samples.
From: Numerical simulation study of the effect of coal dust on gas explosion overpressure
Coal sample | Φ | ||||
|---|---|---|---|---|---|
100 g/m3 | 200 g/m3 | 300 g/m3 | 400 g/m3 | 500 g/m3 | |
lignite | 0.77 | 1.53 | 2.30 | 3.07 | 3.84 |
gas coal | 0.95 | 1.90 | 2.86 | 3.81 | 4.76 |
fertilizer | 0.93 | 1.87 | 2.80 | 3.73 | 4.66 |
ferroalloys | 0.95 | 1.90 | 2.84 | 3.79 | 4.74 |
lean coal | 0.93 | 1.85 | 2.78 | 3.70 | 4.63 |
