Research Article

An Experimental Study of ZrO2-CeO2 Hybrid Nanofluid and Response Surface Methodology for the Prediction of Heat Transfer Performance: The New Correlations

Table 3

Thermal resistance and heat transfer coefficient variance analysis.

SourceSum of squaresDegrees of freedomMean square value

Thermal resistance
Model165.42533.088249.02<0.0001
: power147.691147.6936824.82<0.0001
: volume concentration0.1210.1229.900.0001
0.02310.0235.810.0329
12.20112.203043.05<0.0001
0.04310.04310.640.0068
Residual0.048124.011-003
Total165.4717
Heat transfer coefficient
Model4289.645857.93168.13< 0.0001
: power4050.3514050.35793.78< 0.0001
: volume concentration131.341131.3425.740.0003
19.35119.353.790.0752
12.19112.192.390.1482
45.13145.138.840.0116
Residual61.23125.10
Total4350.8717