Original scientific paper
Use of Simplified Nuclear Power Plant Simulator
Marko Čepin
orcid.org/0000-0002-6889-3592
; University of Ljubljana, Faculty of Electrical Engineering Tržaška cesta 25, 1000 Ljubljana, Slovenia
Abstract
Simplified nuclear power plant simulator is a tool for simulating normal, abnormal and
emergency operation of a nuclear power plant. The nuclear power plant with two loop pressurized
water reactor and with inverted U-bend steam generators and dry containment system is considered.
One loop with the pressurizer is modeled separately from the other loop without it. The model deals
with 138 main input parameters related with the plant parameters such as pressures, temperatures,
levels, power, setpoints, concentrations, capacities, masses and dimensionless numbers. The initial
conditions contain 110 parameters. 18 initiating events from the set of internal initiating events can
be considered. The objective of the work is to show the applicability of the simplified nuclear
power plant simulator for modelling of the selected scenarios from a set of selected design basis
accidents for the education purposes. Selected initiating events and scenarios have been identified
and the data about them was collected. The simulation of the scenarios was performed. The initial
conditions have been determined and the operational characteristics were modelled in sense to
timely model plant automatic actuations and manual actions of plant operators. The results have
been obtained in sense of time dependent curves of the main parameters of interest for showing the
state of the plant itself and its systems and subsystems. The obtained results have been compared
with the results of other simulations. The differences and the similarities have been discussed. The
comparison of the results with some measurements and mostly with other simulations shows some
degree of similarity and some differences, which differ among the parameters of interest. In general,
the resulted comparisons show acceptability of simulator for education purposes.
Keywords
nuclear power plant, simulator, safety, human reliability
Hrčak ID:
247096
URI
Publication date:
28.10.2019.
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