6533b822fe1ef96bd127cec2

RESEARCH PRODUCT

Draining and drying process development of the Tokamak Cooling Water System of ITER

David K FeldeSeokho H. KimJuan J. FerradaJan BerryPietro Alessandro Di MaioG. Dell’orcoMitteau RaphaelWalter Van Hove

subject

Validation studyTokamakProcess developmentMechanical EngineeringNuclear engineeringFlow (psychology)First Wall Blanket Draining Process Drying ProcessBlanketBlow out01 natural sciences010305 fluids & plasmasVolumetric flow ratelaw.inventionNuclear Energy and Engineeringlaw0103 physical sciencesWater coolingEnvironmental scienceGeneral Materials Science010306 general physicsSettore ING-IND/19 - Impianti NucleariCivil and Structural Engineering

description

Abstract The ITER Organization (IO) developed a thermal-hydraulic (TH) model of the complex first wall and blanket (FW/BLK) cooling channels to determine gas flow rate and pressure required to effectively blow out the water in the FW/BLK. In addition, US ITER conducted experiments for selected geometries of FW/BLK flow channels to predict the blowout parameters. The analysis indicates that as low as 2 MPa of pressure difference over the blanket modules will ensure substantial evacuation of the water in blankets with just a few percent remaining in the blanket flow channels. A limited validation study indicates that the analysis yields less conservative results to compare against data collected from experiments. Therefore, the designed blow out flow of the drying system was selected with a large margin above the measured values to ensure the blow out operation.

yearjournalcountryeditionlanguage
2016-11-01Fusion Engineering and Design
https://doi.org/10.1016/j.fusengdes.2016.03.013