The Simulation Test to Start up the PIUS-Type Reactor from Isothermal Fluid Condition.

• HAGA Katsuhiro

  Japan Atomic Energy Research Institute

• TASAKA Kanji

  Department of Nuclear Engineering, Nagoya University

• KUKITA Yutaka

  Japan Atomic Energy Research Institute

抄録

A feedback control system of a primary pump is proposed for a PIUS-type reactor based on the temperature distribution in the lower density lock. This control system maintains the fluid temperature at the axial center of the lower density lock at the average of the fluid temperatures below and above the lower density lock in order to prevent the poison water from penetrating into the core during normal operation. This control system was examined in a series of startup tests under different conditions and the test results demonstrated the effectiveness of the control system to startup the reactor from a small initial temperature difference between primary system and poison water system. The startup of a PIUS-type reactor from an isothermal condition, preventing the inflow of the poison water into the core, is the most difficult transient among normal operations. We installed a preheater system at the exit of the primary pump for the startup test from isothermal condition with the purpose of making a initial temperature difference between primary system and poison water pool. It was confirmed from the results of the tests that the preheater and the present pump feedback control system is quite effective to start up the reactor from an isothermal fluid condition.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌）

  Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌） 32 (9), 846-854, 1995

  一般社団法人 日本原子力学会

キーワード

• thermalhydraulics
• process inherent ultimate safety reactor
• passivesafety
• density lock
• temperature distribution
• honeycomb
• pump speed control
• reactor start-up
• feedback
• control systems
• simulation test
• isothermal condition

詳細情報

• CRID: 1390001204093682176
• NII論文ID: 10002073087
• NII書誌ID: AA00703720
• DOI: 10.3327/jnst.32.846
• COI: 1:CAS:528:DyaK2MXoslyhur0%3D
• ISSN: 18811248
• ISSN: 00223131
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可