| Autor: |
Shirou Takahashi, Tetsuya Totani, Takahisa Kondo, Norimichi Yamashita, Kooji Shiina, Kousei Umemori, Akihiro Sakashita |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
10th International Conference on Nuclear Engineering, Volume 2. |
| DOI: |
10.1115/icone10-22344 |
| Popis: |
It is possible to simplify the reactor internal pump power supply system in the ABWR without affecting the core flow supply when a trip of all RIPs event occurs by eliminating the motor-generator sets and increasing the rotating inertia of the RIPs. This inertia increase due to an additional flywheel, which leads to a gain in weight and length, requires a larger diameter nozzle with a thicker sleeve. However, a thicker sleeve nozzle and a longer and heavier motor casing may change the RIP performance. In the present study, the inertia-increased RIP was verified through full-scale tests. The rotating inertia time constant for coastdown characteristics (behavior of the RIP speed in the event of power loss) for the inertia-increased RIP was doubled compared with the current RIP. The inertia-increased RIP with the thicker sleeve nozzle maintained good performance and its power supply system without motor-generator sets was judged appropriate for the ABWR.Copyright © 2002 by ASME |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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