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B. Naik et al.
Fig. 2 Effects of nanofluids on heat transfer: a Al 2 O 3 , b SiO 2 , c Fe 3 O 4
4 Conclusion
The heat transfer performances of the nanofluids streaming within the double pipe
were examined. Impacts of nanofluid on temperature, concentrations of nanoparticles, flow rates, and also on the heat transfer co-efficients were explored. The
following conclusion is obtained, and the nanoparticles enhanced the rate of heat
transfer and the effectiveness of base fluid. Nanofluid temperature and flow rates of
nanofluid increase the heat transfer rate.