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Renewables: Wind, Water, and Solar

Table 5 ANOVA results of output characteristics of a V-trough 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 7 11,729.7 1675.7 44.54 0.000 0.008606 0.001229 72.31 0.000 56.7934 8.1133 64.71 0.000
Linear 3 11,383.4 3794.5 100.86 0.000 0.008053 0.002684 157.88 0.000 52.8763 17.6254 140.57 0.000
A 1 10,736.8 10,736.8 285.39 0.000 0.006723 0.006723 395.45 0.000 34.3621 34.3621 274.06 0.000
B 1 34.5 34.5 0.92 0.350 0.001205 0.001205 70.90 0.000 0.0108 0.0108 0.09 0.773
C 1 612.0 612.0 16.27 0.001 0.000124 0.000124 7.30 0.014 18.5035 18.5035 147.58 0.000
Square 1 295.4 295.4 7.85 0.011 0.000072 0.000072 4.24 0.053 3.0960 3.0960 24.69 0.000
C*C 1 295.4 295.4 7.85 0.011 0.000072 0.000072 4.24 0.053 3.0960 3.0960 24.69 0.000
2-Way interaction 3 50.9 17.0 0.45 0.720 0.000481 0.000160 9.43 0.000 0.8211 0.2737 2.18 0.123
A*B 1 25.0 25.0 0.67 0.425 0.000038 0.000038 2.26 0.150 0.0631 0.0631 0.50 0.487
A*C 1 15.7 15.7 0.42 0.527 0.000000 0.000000 0.00 1.000 0.2700 0.2700 2.15 0.159
B*C 1 10.2 10.2 0.27 0.608 0.000443 0.000443 26.05 0.000 0.4880 0.4880 3.89 0.063
Error 19 714.8 37.6    0.000323 0.000017    2.3823 0.1254   
Total 26 12,444.5     0.008929     59.1757    
  1. R2 = 99.04%
  2. R2 (adjusted) = 99.18%
  3. R2 (predicted) = 98.99%
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