BWR power transient optimization with PRESTO-POWERMAX

Conference · Mon Jan 01 04:00:00 EST 1990 · Transactions of the American Nuclear Society; (United States)

OSTI ID:6845448

Methnani, M

POWERMAX is an ABB-Atom power optimization algorithm developed for use as a boiling water reactor (BWR) operational support tool for prediction of optimal return strategies following power transients. Using input target power versus time data together with relevant data describing the initial core state, including distributions of burnup, void, void history, control rods, and poison, it basically searches for the maximum power path, with nonnegative thermal and pellet/cladding interaction margins as constraints. The model uses a combination of a three-dimensional (3-D) simulator and a closely coupled, one-dimensional (1-D) axial model, which is used as an alternative quick tool in the optimization search, provided the radial power distribution is relatively unchanged. This assumption is considered reasonable in normal control-line operation with unchanged control rod positions. The algorithm, originally built around the POLCA method, has now been also adapted to the PRESTO simulator.

• OSTI ID: 6845448
• Report Number(s): CONF-901101--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 62
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
BURNUP
BWR TYPE REACTORS
COMPUTER CODES
CONTROL ELEMENTS
ENRICHED URANIUM REACTORS
ONE-DIMENSIONAL CALCULATIONS
P CODES
PHYSICS
POISONING
POWER DENSITY
POWER REACTORS
REACTOR COMPONENTS
REACTOR PHYSICS
REACTORS
THERMAL REACTORS
THREE-DIMENSIONAL CALCULATIONS
TRANSIENTS
VOID FRACTION
WATER COOLED REACTORS
WATER MODERATED REACTORS
XENON OSCILLATIONS