Table 4 The value of constants in Eq. (8).

From: Quantitative analysis of heat release during coal oxygen-lean combustion in a O2/CO2/N2 atmosphere by TG-DTG-DSC

Coal samples

Atmosphere

Conversion rate range

a1

b1

a2

b2

a3

b3

BLT

O2/N2

0.05–0.80

1.59

20.78

−1.67

−13.35

−0.09

0.19

 

0.80–0.95

1.28

21.04

−0.04

0.83

/

/

YW

O2/N2

0.05–0.50

0.33

22.12

0.08

−25.54

−0.00

−0.01

 

0.50–0.95

0.75

0.84

−0.35

21.32

−0.42

2.89

O2/CO2/N2

0.05–0.50

1.47

6.42

−1.23

−12.41

−0.00

0.00

 

0.50–0.95

1.31

−4.48

0.05

13.32

−0.42

3.07