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Table 3 ANOVA results of output characteristics of a flat absorber plate

From: Multi-thermal performance optimization of semi-circular heat pipes integrated with various solar collector profiles

Source

DF

Heat output

Thermal resistance

Overall thermal efficiency

Adj SS

Adj MS

F value

p value

Adj SS

Adj MS

F value

p value

Adj SS

Adj MS

F value

P value

Model

6

12256.9

1751.0

450.17

0.000

0.009094

0.001299

81262.10

0.000

71.1974

10.1711

278.65

0.000

Linear

3

12128.9

4043.0

1039.44

0.000

0.008446

0.002815

176096.22

0.000

66.3504

22.1168

605.93

0.000

A

1

11445.0

11445

2942.48

0.000

0.006740

0.006740

421572

0.000

42.7581

42.7581

1171.44

0.000

B

1

3.1

3.1

0.80

0.382

0.001582

0.001582

98958.33

0.000

0.3439

0.3439

9.42

0.006

C

1

680.8

680.8

175.03

0.000

0.000124

0.000124

7758.33

0.000

23.2484

23.2484

636.93

0.000

Square

 

88.7

88.7

22.81

0.000

0.000205

0.000205

12844.00

0.000

2.6148

2.6148

71.64

0.000

C*C

 

88.7

88.7

22.81

0.000

0.000205

0.000205

12844.00

0.000

2.6148

2.6148

71.64

0.000

2-Way interaction

3

39.2

13.1

3.36

0.040

0.000443

0.000148

9234.00

0.000

2.2322

0.7441

20.38

0.000

A*B

1

21.9

21.9

5.62

0.028

0.000000

0.000000

0.00

1.000

0.7485

0.7485

20.51

0.000

A*C

1

10.9

10.9

2.79

0.111

0.000000

0.000000

0.00

1.000

1.4784

1.4784

40.50

0.000

B*C

1

6.5

6.5

1.67

0.212

0.000443

0.000443

27702.00

0.000

0.0053

0.0053

0.14

0.709

Error

20

73.9

3.9

  

0.000000

0.000000

  

0.6935

0.0365

  

Total

26

12330.8

   

0.009094

   

71.8909

   
  1. R2 = 98.68%
  2. R2 (adjusted) = 98.29%
  3. R2 (predicted) = 97.91%