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Table 4 Comparison between experimental and RSM model results

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

Volume concentration (%) Power (W) Experimental results using heat pipe RSM model results % of Deviation
Thermal resistance (K/W) Heat transfer coefficient (W/m2 K) Thermal resistance (K/W) Heat transfer coefficient (W/m2 K) Thermal resistance (K/W) Heat transfer coefficient (W/m2 K)
0 30 11.06 14.88 10.90 14.70 1.48 − 1.26
60 5.57 28.55 5.55 29.99 0.39 4.79
90 3.71 43.32 3.68 48.74 0.75 11.12
0.0125 30 10.64 18.93 10.78 17.35 − 1.33 − 9.12
60 5.38 35.27 5.55 29.99 − 3.23 − 17.62
90 3.55 56.79 3.68 48.74 − 3.72 − 16.53
0.025 30 10.64 19.01 10.69 19.41 − 0.49 2.04
60 5.37 35.63 5.55 29.99 − 3.39 − 18.82
90 3.53 58.96 3.68 48.74 − 4.28 − 20.97
0.05 30 10.56 19.97 10.55 21.76 0.09 8.22
60 5.30 38.78 5.55 29.99 − 4.69 − 29.33
90 3.53 59.36 3.68 48.74 − 4.38 − 21.79
0.075 30 10.51 20.67 10.49 21.73 0.20 4.88
60 5.29 39.31 5.55 29.99 − 4.88 − 31.07
90 3.51 61.15 3.68 48.74 − 4.81 − 25.47
0.1 30 10.50 20.82 10.51 19.34 − 0.02 − 7.64
60 5.28 40.02 5.55 29.99 − 5.15 − 33.46
90 3.50 62.02 3.68 48.74 − 5.01 − 27.25
      Mean: − 2.36% − 12.74%