Energija, Vol. 65 No. 3-4, 2016.
Izvorni znanstveni članak
Possible accident scenarios related to the Spent Fuel Pool operating events
Miodrag Stručić
orcid.org/0000-0002-9293-514X
; European Commission, Joint Research Centre (JRC), Institute for Energy and Transport (IET), Nuclear Reactor Safety Assessment Unit, Westerduinweg 3,1755LE Petten, Netherlands
Sažetak
After the accident in Fukushima Daiichi NPP, the Nuclear Energy Agency Committee on the Safety
of Nuclear Installations (OECD/NEA CSNI) initiated activities to address some technical issues. As
a one of results, the Status report on Spent Fuel Pools (SFPs) under Loss of Cooling Accident
Conditions was created. To give a valuable contribution to the post-Fukushima accident decision
making process, brief summaries were produced on:
- The status of SFP accident and mitigation strategies;
- Assessment of current experimental and analytical knowledge about loss of cooling accidents
in SFPs and their associated mitigation strategies;
- The strengths and weaknesses of analytical methods used in codes to predict SFP accident
evolution and assess the efficiency of different cooling mechanisms for mitigation of such
accidents;
- Identification of additional research activities required to address gaps in the understanding of
relevant phenomenological processes, where analytical tool deficiencies exist, and to reduce
the uncertainties in this understanding.
The final report was approved by OECD/NEA CSNI in December 2014 with the reference
NEA/CSNI/R(2015)2 and it is available for download on the OECD website http://www.oecdnea.
org/nsd/docs/2015/csni-r2015-2.pdf.
Joint Research Centre of European Commission took the leading role in creation of the chapter about
possible accident scenarios, past accidents and precursor events. Evaluations of past events where
SFP cooling has been lost show that malfunctions of the SFP cooling system are in most cases caused
by inoperable cooling pumps. The other important causes are inadvertent diversion of coolant flow
and Loss of ultimate heat sink.
This paper is providing short general report overview and more details about JRC contribution.
Ključne riječi
Nuclear Safety; Spent Fuel Pool; Accident scenarios M
Hrčak ID:
199644
URI
Datum izdavanja:
1.9.2017.
Posjeta: 940 *