The Effect of Nanofluid Volume Concentration on Heat Transfer and Friction Factor inside a Horizontal Tube

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left">Nanofluid</td><td align="center"><i>a</i>1</td><td align="center"><i>b</i>1</td><td align="center"><i>c</i>1</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">TiO<sub>2</sub>-W</td><td align="center">0.3</td><td align="center">−0.1127</td><td align="center">0.00100</td></tr><tr><td align="left">Al<sub>2</sub>O<sub>3</sub>-W</td><td align="center">0.3</td><td align="center">−0.111</td><td align="center">0.00120</td></tr><tr><td align="left">SiO<sub>2</sub>-W</td><td align="center">0.3</td><td align="center">−0.106</td><td align="center">0.00125</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Constants of friction equation (<a href="https://static.hindawi.com/articles/jnm/volume-2013/859563/figures/#EEq15">11</a>).

Journal of Nanomaterials

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Table 2

Table 2: The Effect of Nanofluid Volume Concentration on Heat Transfer and Friction Factor inside a Horizontal Tube 