Enhanced Electrical Insulation and Heat Transfer Performance of Vegetable Oil Based Nanofluids

Table 1

Basic properties of the FR3 insulating oil.

Parameter	FR3 insulating oil
Appearance	Bright and clear
Density (kg·m^−3, 20°C)	0.92
Acid number (mgKOH·g^−1)	0.032
viscosity (mm^2·s^−1, 40°C)	24.1
Pour point (°C)	−21
Flash point (°C)	316
Interfacial tension (mN/m)	24
Breakdown voltage (kV)	56
Dissipation factor (%, 90°C)	1.55
Relative dielectric constant (90°C)	2.86
Volume resistivity (×10^10 Ωm, 90°C)	1.1