Early Career Seminar: Experiments in Natural Circulation for Passive Decay Heat Removal

Passive systems have become one of the primary focus areas for safety and decay heat removal in advanced reactor concepts. Of these systems, natural circulation air and water loops have the potential to offer exceptional performance with relatively simplicity in design. However buoyancy driven flow readily exhibits complex and uncertain behavior, often times invoking a wide range of thermal hydraulic behavior with minimal changes in operating conditions due to their inherent sensitivity. The focus of this seminar will be on physical studies of these systems and their phenomena with examples drawn from on-going research on both air and water driven test facilities. First an overview of the design of the air-based test facility at Argonne will be presented, followed by results and observations from over 2,200 hours of active test operations. Then, an introduction to the planned water-based transformation will be given with details of the AREVA concept design being constructed at Argonne. Remarks of best practices, along with some of the instrumentation commonly used on such test facilities, will also be presented.

June 7, 2016 at 10:00 am in Bldg. 203 Auditorium

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