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Nanofluids and a method of making nanofluids for ground source heat pumps and other applications

Patent ·
OSTI ID:1176537
This invention covers nanofluids. Nanofluids are a combination of particles between 1 and 100 nanometers, a surfactant and the base fluid. The nanoparticles for this invention are either pyrogenic nanoparticles or carbon nanotubes. These nanofluids improve the heat transfer of the base fluids. The base fluid can be ethylene glycol, or propylene glycol, or an aliphatic-hydrocarbon based heat transfer fluid. This invention also includes a method of making nanofluids. No surfactant is used to suspend the pyrogenic nanoparticles in glycols.
Research Organization:
ACTA Technology Inc, Boulder, CO (United States)
Sponsoring Organization:
USDOE
Assignee:
ACTA Technology Inc (Boulder, CO)
Patent Number(s):
8,580,138
Application Number:
13/229,737
OSTI ID:
1176537
Country of Publication:
United States
Language:
English

References (4)

Nanostructured fumed metal oxides for thermal interface pastes journal November 2007
Surface electric and titration behaviour of fumed oxides journal June 2004
Experimental study of heat transfer enhancement using water/ethylene glycol based nanofluids as a new coolant for car radiators journal November 2011
Intriguingly high convective heat transfer enhancement of nanofluid coolants in laminar flows journal May 2010

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