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Table 3 Surface tension ratio of two kinds of nanofluids to the base fluid

From: Application of functionalized nanofluid in thermosyphon

Mass concentration
(wt.%)
Functionalized nanofluid
(20°C)
Functionalized nanofluid
(40°C)
Functionalized nanofluid
(60°C)
Traditional nanofluid
(20°C)
0.5 0.72278 0.71 0.697 0.7858
1 0.71875 0.704 0.686 0.779
1.5 0.71903 0.701 0.684 0.77373
2 0.70833 0.69 0.676 0.765
2.5 0.7125 0.693 0.678 0.759