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Journal of Engineering
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2023
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Article
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Tab 4
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Research Article
Studying the Synergetic Effect of Point-Extraction and Longitudinal Ventilation on the Maximum Smoke Temperature and Back-Layering Length in Tunnel Fires
Table 4
Suggested model for predicting the maximum temperature (R_Squared = 99%).
Coded coefficients
SE coef
T
value
value
VIF
Term
Coef
Constant
226.8
12
18.85
0
Height
41.99
4.68
8.97
0.001
1.43
Distance
4.11
5.43
0.76
0.491
1.29
L.V.
−41.47
6.33
−6.55
0.003
1.82
E.V
0.31
6.11
0.05
0.963
1.63
Distance × distance
16.6
8.41
1.97
0.12
1.03
L.V. × L.V.
14.5
10.9
1.33
0.254
1.36
E.V × E.V
6.66
9.35
0.71
0.515
1.27
Height × distance
−9.11
5.34
−1.71
0.163
1.24
Height × L.V.
−52.76
6.5
−8.12
0.001
1.95
Height × E.V.
5.9
7.08
0.83
0.451
2.19
Distance × L.V.
29.87
6.95
4.3
0.013
1.49
Distance × E.V
−19.99
7.05
−2.84
0.047
1.45
L.V. × E.V.
5.6
8.52
0.66
0.547
2.23