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|Program name||Package id||Status||Status date|
|Package ID||Orig. computer||Test computer|
The FIX-II facility is a volume scaled 1:777 representation of a Swedish BWR with external pumps. The pressure vessel contains a 36 rod full length bundle and a spray condenser at the top to allow steady state operation. The downcomer, bypass channels and guide tube volumes are represented by external piping. The intact loop represents three of the four external reactor loops. The broken loop is constructed such that both guillotine breaks and split breaks may be simulated. The facility is equipped with ADS-simulation, but no ECCS injection are included. The FIX-II loop is also suited to investigate response of pump trips and MSIV closures in internal pump reactors.
Test 3025 simulates an intermediate size split break in one of the four main recirculation lines. The break area was 31 per cent of the scaled down pipe area of the reactor. The initial power of the 36-rod bundle was 3.38 MW, corresponding to the hot channel power of the reactor.
|Package ID||Status date||Status|
|CSNI0049/01||23-SEP-1992||Arrived at NEADB|
L. Nilsson, et. al.:
FIX-II LOCA Blowdown and Pump Trip Heat Transfer Experiments,
Experimental Results from Pump Trip Experiments of Test Groups
Nos. 1, 2, 8 (STUDSVIK/NR-83/324)
Keywords: data, pumps, transients.