Experimental Investigation of Core-Jet Confinement in a MAPLE-type Flow Test Facility

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P.T. Wan
S.Y. Shim
V.S. Krishnan

Abstract

Flow visualization tests were performed in a one-fifth scale adiabatic hydraulic model of a MAPLE reactor to investigate the effectiveness of bypass (or countermomentum) and suction flows in suppressing the core jet in an open-chimney-in-pool arrangement. The bypass-f low requirements for suppression of core flow from the open chimney for various core flows, chimney heights, suction locations and suction angles are presented. The experimental data trends are in qualitative agreement with the results of numerical simulations. Overall, it is concluded that, with the proper chimney design, the core jet can be success- fully confined in a MAPLE-type open-chimney-in-pool arrangement.

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