Patents by Inventor Bjorn Petter Moxnes

Bjorn Petter Moxnes 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).

  • Method and equipment for heat recovery
    Patent number: 9732981
    Abstract: The present invention relates to a method and equipment for recovering heat from exhaust gas removed from an industrial process, such as an electrolysis process for the production of aluminum. Heat is recovered by means of an extraction/suction system, where the exhaust gas contains dust and/or particles. The heat is recovered as the exhaust gas being brought into contact with heat-recovery elements. Flow conditions and the design of the heat recovery elements are such that the deposits of the dust and/or particles on the surfaces stated are kept at a stable, limited level. In preferred embodiments, the heat-recovery elements have a circular or an extended, elliptical cross-section and may be equipped with fins or ribs.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 15, 2017
    Assignees: NORSK HYDRO ASA, NTNU TECHNOLOGY TRANSFER AS
    Inventors: Erling Naess, Otto Kristian Sonju, Torbjorn Slungaard, Bjorn Petter Moxnes
  • METHOD AND EQUIPMENT FOR HEAT RECOVERY
    Publication number: 20140069625
    Abstract: The present invention relates to a method and equipment for recovering heat from exhaust gas removed from an industrial process, such as an electrolysis process for the production of aluminium. Heat is recovered by means of an extraction/suction system, where the exhaust gas contains dust and/or particles. The heat is recovered as the exhaust gas being brought into contact with heat-recovery elements. Flow conditions and the design of the heat recovery elements are such that the deposits of the dust and/or particles on the surfaces stated are kept at a stable, limited level. In preferred embodiments, the heat-recovery elements have a circular or an extended, elliptical cross-section and may be equipped with fins or ribs.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 13, 2014
    Applicants: NTNU TECHNOLOGY TRANSFER AS, NORSK HYDRO ASA
    Inventors: Erling NAESS, Otto Kristian SONJU, Torbjorn SLUNGAARD, Bjorn Petter MOXNES
  • Method and Equipment for Heat Recovery
    Publication number: 20080099185
    Abstract: The present invention relates to a method and equipment for recovering heat from exhaust gas removed from an industrial process, such as an electrolysis process for the production of aluminium. Heat is recovered by means of an extraction/suction system, where the exhaust gas contains dust and/or particles. The heat is recovered as the exhaust gas is brought into contact with heat-recovery elements. Flow conditions and the design of the heat recovery elements are such that the deposits of the dust and/or particles on the surfaces stated are kept at a stable, limited level. In preferred embodiments, the heat-recovery elements have a circular or an extended, elliptical cross-section and may be equipped with fins or ribs.
    Type: Application
    Filed: July 15, 2005
    Publication date: May 1, 2008
    Inventors: Erling Naess, Otto Kristian Sonju, Torbjorn Slungaard, Bjorn Petter Moxnes