Patents Assigned to Greenfire Partners LLC
  • Circulation of algal broth by thermally-induced convection
    Patent number: 8247212
    Abstract: The present invention provides a method of circulating algae in growing containers using thermally-induced convection techniques. In particular, a method of growing algae by providing a thermal gradient in algae containing medium is disclosed.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: August 21, 2012
    Assignee: Greenfire Partners LLC
    Inventors: Mark P. Muir, Alan D. Eastman, Randy Balik
  • PROCESS TO OBTAIN THERMAL AND KINETIC ENERGY FROM A GEOTHERMAL HEAT SOURCE USING SUPERCRITICAL CO2
    Publication number: 20110100002
    Abstract: Methods and systems for extracting geothermal energy from an underground hot dry rock reservoir using supercritical carbon dioxide are disclosed. In a first step, the methods and systems utilize a heat exchanger in a binary system to heat a secondary fluid that is used to perform work. In a second step, the supercritical carbon dioxide is transferred to a pseudo turbine (e.g., a free-piston linear engine) to perform additional work through expansion.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 5, 2011
    Applicant: GreenFire Partners LLC
    Inventors: John R. Muir, Alan D. Eastman, Mark P. Muir