Patents by Inventor Mihajlo Golubovic

Mihajlo Golubovic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230304749
    Abstract: Disclosed is a microchannel heat exchanger comprising an inlet header enclosing an inlet header volume and comprising an inlet port, and wherein the inlet header extends along a first direction; an outlet header; a plurality of microchannel tubes extending between, and fluidly connecting the inlet header and the outlet header; and a flow distribution conduit extending into the inlet header volume, interposed between, and in fluid communication with, the inlet port and the plurality of microchannel tubes and wherein the flow distribution conduit is configured to direct a fluid flowing therethrough along the first direction.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 28, 2023
    Inventors: James Amick, Mihajlo Golubovic
  • Patent number: 7998309
    Abstract: 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.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: August 16, 2011
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Milivoje Kostic, Mihajlo Golubovic, John Hull, Stephen U. S. Choi
  • Publication number: 20100171068
    Abstract: 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.
    Type: Application
    Filed: March 23, 2010
    Publication date: July 8, 2010
    Inventors: Milivoje Kostic, Mihajlo Golubovic, John R. Hull, Stephen U.S. Choi
  • Patent number: 7718033
    Abstract: A one step method and system for producing nanofluids by a particle-source evaporation and deposition of the evaporant into a base fluid. The base fluid such (i.e. 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. A heater-boat-evaporator having an evaporant material (particle-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, the evaporated material absorbed by the liquid film to form nanofluid.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: May 18, 2010
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Milivoje Kostic, Mihajlo Golubovic, John R. Hull, Stephen U. S. Choi