ARCHER
Table of contents
| ARCHER - Advanced High Temperature Reactors for Cogeneration of Heat and Electricity Research and Development |
| Project manager: | Prof. Dr.-Ing. habil. Antonio Hurtado |
| Contributors: | Dipl.-Ing. Martin Lustfeld Dipl.-Ing. Max Schreier |
| Duration: | 03/2011 - 02/2015 |
| Funding: | EU |
| Cooperations: |
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Brief Description
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A security relevant issue in an HTR is the generation of graphite dust in the reactor through the abrasion of fuel pebbles against each other and with the reflector. In case of a depressurization accident with loss of forced cooling (DLOFC) a release of radioactive contaminated dust is possible. As a prerequisite for a design of a dust restraint construction the transport properties of non-radioactive dust is investigated. |
figure 1: CAD Modell of test facility
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The shape of the particles has a significant impact on the particle transport. Therefore, it is important to use graphite particles, which have the same structure as the ones occurring in an HTR primary circuit. In the frame of this work package, it is planned to build an experimental construction to simulate the friction between the pebbles and the reflector of the HTR concept. The generated graphite particles are then used to investigate the transport behaviour. The aim is to determine the correlation between the particle generation and the aforementioned transport behaviour. |
figure 2: Produced graphite dust particle (LSM image)