Figure 4.

Thermal conductivity enhancement for the 3.0 vol.% and 5.5 vol.% ZnO nanofluids as a function of temperature. (a) Thermal conductivity enhancement data for 3.0 vol.% ZnO nanofluids. (b) Thermal conductivity enhancement data for 5.5 vol.% ZnO nanofluids.

Lee et al. Nanoscale Research Letters 2011 6:258   doi:10.1186/1556-276X-6-258
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