Carbon nanoparticle-containing hydrophilic nanofluid with enhanced thermal conductivity
AssigneeSouth Dakota School of Mines and Technology
InventorsHaiping Hong, Jesse Wensel
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Abstract
The present invention relates to a nanofluid that contains carbon nanoparticles, metal oxide nanoparticles and a surfactant in a thermal transfer fluid. The present invention also relates to processes for producing such a nanofluid with enhanced thermal conductive properties.
Claims19
A nanofluid composition comprising 0.017-0.05% by weight carbon nanoparticles, 0.017-0.05% by weight metal oxide nanoparticles having a pHpzc, and at least one surfactant having a net negative charge in a hydrophilic thermal transfer fluid, wherein the composition has a pH between 7 and 9 and the pH is below the pHpzc of the metal oxide nanoparticles.
A method for making a nanofluid composition comprising the steps of:
- a) mixing together 0.017-0.05% by weight carbon nanoparticles, 0.017-0.05% by weight metal oxide nanoparticles having a pHpzc, and at least one surfactant having a net negative charge into a hydrophilic thermal transfer fluid;
- and
- b) adjusting the pH to between 7 and 9 and below the pHpzc of the metal oxide nanoparticles.
Dependencies are inferred from the claim text.