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| Photo of the demonstration equipment just after the well was opened with CO2 being pumped into the closed-loop system. |
GreenFire Energy Inc. today announced that Joseph Scherer, CEO, and Alvaro Amaya, Ph.D., Chief Modeling Engineer, will be presenting their recent paper on “Closed-Loop Demonstration Project at Coso Geothermal Field Using Supercritical CO2” at the Stanford Geothermal Workshop, February 10-12, 2020.
GreenFire Energy developed a geothermal power cycle that uses a closed-loop design with different working fluids. An experimental demonstration of this system was performed at the Coso Geothermal Field with supercritical carbon dioxide (sCO2) recirculated in a downhole closed-loop heat exchanger installed into an existing well. In this demonstration, sCO2 was circulated and the well co-produced steam at different flow rates and flow settings. The primary goal of this demonstration was to verify GreenFire Energy’s supercritical CO2 process modeling assumptions and to illustrate the heat and power production potential of closed-loop geothermal technology under various operational conditions.
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