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AssigneeThe Lubrizol Corporation
InventorsAnil Agiral, Melinda E. Bartlett, Douglas T. Jayne, Eugene Pashkovski, Amy L. Short
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The disclosed technology relates to a heat transfer system and heat transfer method employing stable colloidal dispersion of a) a non-conductive, non-aqueous and non-water miscible dielectric oleaginous heat transfer fluid, b) at least one solid nanoparticle, and c) a surfactant. In particular, the technology relates to a stable colloidal dispersion with low electrical conductivity, low flammability, and low freeze point that provides excellent peak temperature reduction in a heat transfer system, such as that for cooling a battery pack or a power system of an electric vehicle.
A stable colloidal dispersion comprising:
A method of preparing a dispersion of solid nanoparticles in a nonconductive, non-aqueous and non-water miscible fluid comprising, consisting essentially of, or consisting of the steps of 1) dispersing the solid nanoparticles in an alcohol with agitation, 2) mixing the surfactant with the non-conductive, non-aqueous and non-water miscible fluid, and 3) combining the dispersion of 1) with the mixture of 2) with agitation.
Dependencies are inferred from the claim text.