Study on Thermodynamic Characteristics and Heat Transfer Method of Uncontrolled Fire in Coal Mine Gangue Mountain Spontaneous Combustion Based on System Dynamics

Figure 3

ln[(da/dt)/f(a)], ln[M(a)/T²], and 1/T curves of coal gangue 4# Phase II. Reaction order function with differential form FOR (a), R² = 0.965, with integral form FOR (b), R² = 0.978.

(a)

(b)