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Table 4 ANOVA results of output characteristics of a V-grooved 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 23,948.4 3421.2 36.28 0.000 0.025560 0.003651 38.44 0.000 142.411 20.344 3.72 0.011
Linear 3 23,573.2 7857.7 83.33 0.000 0.025082 0.008361 88.01 0.000 132.546 44.182 8.07 0.001
A 1 20,995.4 20,995.4 222.66 0.000 0.025003 0.025003 263.18 0.000 2.985 2.985 0.55 0.469
B 1 514.3 514.3 5.45 0.031 0.000011 0.000011 0.11 0.741 22.418 22.418 4.10 0.057
C 1 2063.5 2063.5 21.88 0.000 0.000068 0.000068 0.72 0.407 107.143 107.143 19.58 0.000
Square 1 26.8 26.8 0.28 0.600 0.000003 0.000003 0.04 0.852 0.298 0.298 0.05 0.818
C*C 1 26.8 26.8 0.28 0.600 0.000003 0.000003 0.04 0.852 0.298 0.298 0.05 0.818
2-Way interaction 3 348.4 116.1 1.23 0.326 0.000475 0.000158 1.67 0.208 9.566 3.189 0.58 0.634
A*B 1 347.3 347.3 3.68 0.070 0.000064 0.000064 0.67 0.422 5.039 5.039 0.92 0.349
A*C 1 1.1 1.1 0.01 0.917 0.000411 0.000411 4.32 0.051 4.528 4.528 0.83 0.374
B*C 1 0.0 0.0 0.00 1.000 0.000000 0.000000 0.00 0.958 0.000 0.000 0.00 1.000
Error 20 1791.5 94.3    0.001805 0.000095    103.960 5.472   
Total 26 25,739.9     0.027365     246.370    
  1. R2 = 96.01%
  2. R2 (adjusted) = 93%
  3. R2 (predicted) = 91%