Verification tests performed in APWR development program

The APWR has been developed as a nuclear plant incorporated major improvements in areas such as safety, reliability, operational performance and economy. During development of the APWR, various designs, tests and evaluations were conducted according to an elaborately planned development program. The adequacy and reliability of major equipment were confirmed by extensive testing from the design phase to the final verification stage, those were, about 60 of design tests and 14 of verification tests. Especially, the Nuclear Power Engineering Test Center(NUPEC) was commissioned by the Ministry of International Trade and Industry(MITI), to confirm the reliability of the core internals, fuel assembly and core components by tests called 'Hydraulic Flow Test of APWR FUEL under Simulated Operating Conditions' and 'Verification Test of Upper Core Internals for APWR'. This report is to present the role of the tests in the APWR development and to introduce the outline of major verification tests