Integral testing of the AP600 passive emergency core cooling systems

In support of the development of the AP600, Westinghouse is conducting two integral system tests to examine the performance of the passive safety systems. A full-height, full-pressure test is being performed to simulate small loss-of-coolant, steam generator tube rupture, and large steam line break events. A one-quarter scale, low-pressure test is being performed to simulate transients with emphasis on the transition to the natural convection post-accident, long-term cooling mode and to demonstrate the long-term cooling capability. Each of the tests will provide detailed experimental results for verification of the accident analysis computer codes. (author)