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Table 2 Model summary of responses

From: Experimental and theoretical investigation of heat transfer characteristics of cylindrical heat pipe using Al2O3–SiO2/W-EG hybrid nanofluids by RSM modeling approach

Model SD R squared Adjusted R squared Predicted R squared Adequate precision  
Thermal resistance
Linear 0.90 0.9252 0.9152 0.8970 19.963  
2FI 0.93 0.9254 0.9094 0.8806 16.683  
Quadratic 0.077 0.9996 0.9994 0.9988 167.941 Suggested
Cubic 0.058 0.9998 0.9996 0.9990 181.363 Aliased
Heat transfer coefficient
Linear 3.45 0.9618 0.9567 0.9406 33.402  
2FI 3.27 0.9679 0.9610 0.9393 30.856  
Quadratic 2.56 0.9831 0.9761 0.9556 32.201 Suggested
Cubic 1.97 0.9925 0.9859 0.9570 33.864 Aliased