Original scientific paper
DECAY HEAT CALCULATION FOR SPENT FUEL POOL APPLICATION
DAVOR GRGIĆ
; University of Zagreb Faculty of Electrical Engineering and Computing
SINIŠA ŠADEK
; University of Zagreb Faculty of Electrical Engineering and Computing
VESNA BENČIK
; University of Zagreb Faculty of Electrical Engineering and Computing
DAMIR KONJAREK
; Enconet d.o.o.
Abstract
The automatic procedure was developed for fuel assembly decay heat
calculation based on PARCS 3D burnup calculation for fuel cycle depletion, and
ORIGEN 2.1 calculation during both depletion and fuel cooling. Using appropriate
pre-processor and post-processor codes it is possible to calculate fuel assembly decay
heat loads for all fuel assemblies discharged from reactor. Simple graphical
application is then used to distribute fuel assemblies within fuel pool and to
calculate any fuel assembly, SFP rack, or whole pool heat load at arbitrary time.
The application can be used for overview of fuel assembly burnups, cooling times or
decay heats. Based on given date it is possible to calculate whole pool heat load and
time to boiling or time to assembly uncover using simple mass and energy balances.
Calculated heat loads can be input to more detailed thermal-hydraulics calculations
D. Grgić, S. Šadek, V. Benčik, D. Konjarek, Decay heat calculation for spent fuel pool application, Journal of Energy, vol. 64 (2015) Special Issue, p.
90-101
of spent fuel pool. The demonstration calculation was performed for NPP Krsko
spent fuel pool.
Keywords
burnup calculation; decay heat; ORIGEN; PARCS; spent fuel pool
Hrčak ID:
199278
URI
Publication date:
15.9.2017.
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