一体型モジュラー軽水炉(IMR)実用化のための技術開発 : 原子炉設計(NP2 軽水炉の設計・建設技術)

概要

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Integrated Modular Water Reactor (IMR) has being developed as one of advanced small-scale light water reactors with the thermal output of 1000MWt. The IMR, which employs two-phase natural circulation and self-pressurization in the primary cooling system, realizes enhanced safety and reduction of construction cost, housing steam generators and control rod drive mechanism and eliminating pressurizers, primary cooling pumps and pipes. Based on the effective simplification, the innovative key technology of the IMR is being developed as Hybrid Heat Transport System (HHTS) and Stand-alone Direct Heat Removal System (SDHS). The system of IMR has being confirmed thermal-hydraulically through experiment and analysis by code. The development of the IMR is now on the stage of conceptual design, which will be completed with accomplishment of HHTS and SDHS in 2005, and basic design and verification tests will start as the next stage aiming to its practical application in the near future.
2004-06-22