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One-step method for the production of nanofluids

United States Patent

August 16, 2011
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A one step method and system for producing nanofluids by a nanoparticle-source evaporation and deposition of the evaporant into a base fluid. The base fluid such oil or ethylene glycol is placed in a rotating cylindrical drum having an adjustable heater-boat-evaporator and heat exchanger-cooler apparatus. As the drum rotates, a thin liquid layer is formed on the inside surface of the drum. An insulated heater-boat-evaporator having an evaporant material (nanoparticle-source) placed within its boat evaporator is adjustably positioned near a portion of the rotating thin liquid layer, the evaporant material being heated thereby evaporating a portion of the evaporant material and forming nanoparticles, the nanoparticles absorbed by the liquid film to form nanofluid.
Kostic; Milivoje (Sycamore, IL), Golubovic; Mihajlo (Chicago, IL), Hull; John (Downers Grove, IL), Choi; Stephen U. S. (Naperville, IL)
The United States of America as represented by the United States Department of Energy (Washington, DC), N/A (
12/ 729,494
March 23, 2010
STATEMENT OF GOVERNMENTAL SUPPORT The United States Government has certain rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy and the University of Chicago operating Argonne National Laboratory.