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HECTR assessment of some HDR experiments

Authors
Journal
Nuclear Engineering and Design
0029-5493
Publisher
Elsevier
Publication Date
Volume
121
Issue
1
Identifiers
DOI: 10.1016/0029-5493(90)90004-h

Abstract

Abstract The HECTR (Hydrogen Event: Containment Transient Response) code was assessed against two large-scale thermal-hydraulic and hydrogen mixing tests (Tests 31.1 and 31.5) in the German Heiss Dampf Reaktor (HDR) decommissioned reactor facility. HECTR is a lumped volume code with models for the transport, mixing, and combustion of hydrogen. HECTR was modified to include an isentropic expansion process to describe two-phase water blowdown and a simple model to calculate an effective compartment velocity in each time step. The specific objective of this work is to assess the transport and mixing models in the HECTR code.

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