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Conference Article: Decay heat removal by passive means in case of a block type HTR reactor core-CFD Analysis

A. Woaye-Hune and S. Ehster, FRAMATOME-ANP, France

Abstract

In the frame of the modular HTR design assessment, the decay heat removal during accident conditions is one of the main problems to investigate in order to demonstrate the passive safety of the concept. The aim of the present paper is to present one methodology using a numerical simulation approach to assess the thermal consequences on HTR core and structures during a Loss Of Forced Convection configuration. The detailed methodology is presented, and different parametric studies are performed to assess the parameters sensitivity. These first results allow to define the leading parameters which will be retained in the frame of a future HTR passive safety function optimisation.

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key words: Gas Cooled Reactor, Nuclear Technology
Reference:
Proceedings of the Conference on High Temperature Reactors, Petten, NL, April 22-24, 2002
Organized by HTR-TN in cooperation with the European Nucler Society (ENS) and the IAEA
International Atomic Energy Agency, Vienna (Austria)
HTR-2002, pp:1-7