Table 4 Analysis of variance of polynomial model of pipeline resistance loss.

From: Influence of coal gangue-aeolian sand aggregate gradation on rheological properties and pipeline transportation characteristics of filling slurry

Source

Sum of square

df

Root mean square

F

P

Model

2.193E+08

9

2.437E+07

1793.46

 < 0.0001

A-Aeolian sand

5.635E+06

1

5.635E+06

414.77

 < 0.0001

B-Concentration

1.957E+08

1

1.957E+08

14,403.07

 < 0.0001

C-Inlet velocity

8.744E+06

1

8.744E+06

643.59

 < 0.0001

AB

1.086E+06

1

1.086E+06

79.95

 < 0.0001

AC

30,680.12

1

30,680.12

2.26

0.1713

BC

1.180E+06

1

1.180E+06

86.86

 < 0.0001

A2

15,077.67

1

15,077.67

1.11

0.3229

B2

3.662E+06

1

3.662E+06

269.57

 < 0.0001

C2

15,421.20

1

15,421.20

1.14

0.3178

Residual

1.087E+05

8

13,586.19

–

–

Lack of fit

84,004.40

5

16,800.88

2.04

0.2955

Error

24,685.12

3

8228.37

–

–

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