Table 5.

Percentage enhancement for different volume fraction of Zn.

$\varphi (\text{Zn})$	$\alpha$	$\tau$	$Pr$	$\text{Re}$	$\mathit{Nu}$	Percentage
0.00	0.5	1	21	1.2	4.708	–
0.01	0.7	1	21	1.2	4.815	2.272
0.02	0.5	1.5	21	1.2	4.921	4.524
0.03	0.5	1	21	1.2	5.026	6.754
0.04	0.5	1	25	1.2	5.131	8.984