Hybrid Reactor Simulation and 3-D Information Display of BWR Out-of-Phase Oscillation

Conference · Sun Jun 17 04:00:00 EDT 2001

OSTI ID:786058

Edwards, Robert; Huang, Zhengyu

The real-time hybrid reactor simulation (HRS) capability of the Penn State TRIGA reactor has been expanded for boiling water reactor (BWR) out-of-phase behavior. During BWR out-of-phase oscillation half of the core can significantly oscillate out of phase with the other half, while the average power reported by the neutronic instrumentation may show a much lower amplitude for the oscillations. A description of the new HRS is given; three computers are employed to handle all the computations required, including real-time data processing and graph generation. BWR out-of-phase oscillation was successfully simulated. By adjusting the reactivity feedback gains from boiling channels to the TRIGA reactor and to the first harmonic mode power simulation, limit cycle can be generated with both reactor power and the simulated first harmonic power. A 3-D display of spatial power distributions of fundamental mode, first harmonic, and total powers over the reactor cross section is shown.

• Research Organization: The Pennsylvania State University, University Park, Pennsylvania (US)
• Sponsoring Organization: US Department of Energy (US)
• OSTI ID: 786058
• Report Number(s): NONE; ISSN 0003-018X; CODEN TANSAO; ISSN 0003-018X; CODEN TANSAO
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
COMPUTERIZED SIMULATION
DISPLAY DEVICES
HARMONICS
HYBRID REACTORS
ON-LINE SYSTEMS
OSCILLATIONS
POWER DISTRIBUTION
PSTR REACTOR
REACTOR CORES
REACTOR SIMULATORS
THREE-DIMENSIONAL CALCULATIONS