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<strong>atw</strong> Vol. 63 (<strong>2018</strong>) | Issue 8/9 ı August/September<br />
References<br />
468<br />
AMNT <strong>2018</strong> | YOUNG SCIENTISTS' WORKSHOP<br />
| | Fig. 3-1.<br />
Overview of whole Nodalisation of the IPR-R1 (left) and 13 core channels (right) generated by the software for input deck<br />
generation.<br />
Power<br />
[kW]<br />
| | Tab. 3-2.<br />
Thermal hydraulic data IPR-R1.<br />
Core inlet<br />
temperature<br />
(Position 3)<br />
[°C]<br />
Core outlet<br />
temperature<br />
(Position 3)<br />
[°C]<br />
There is good agreement between<br />
the published RELAP calculations in<br />
[REI2009] and the calculated ATHLET<br />
data.<br />
4 Summary<br />
A new method based on a heuristic<br />
approach for modelling selected<br />
research reactor types in thermal<br />
hydraulic analysis codes is presented.<br />
This new approach allows a fast and<br />
reliable generation of the input deck’s<br />
fundamental elements despite limited<br />
technical documentation. Focusing on<br />
one MTR and one TRIGA design, the<br />
main steps of developing process and<br />
the characteristics of the new method<br />
are highlighted. This includes the<br />
Core inlet<br />
temperature<br />
(Position 8)<br />
[°C]<br />
Core outlet<br />
temperature<br />
(Position 3)<br />
[°C]<br />
Calculation 51 20.87 27.97 20.87 23.94<br />
Reference<br />
[REI2009]<br />
50 20.95 26.95 22.95 24.95<br />
abstraction and modularisation of<br />
research reactor plant designs as well<br />
as the conception of type-specific<br />
nodalisation. At the end of this paper,<br />
an exemplary MTR and TRIGA<br />
research reactor is presented, generated<br />
by the developed software.<br />
Focusing on the stationary conditions,<br />
there is a good agreement between<br />
the calculated and experimental data.<br />
This proves the basic functionality of<br />
the developed modelling system by<br />
generating a realistic plant model for<br />
TRIGA and MTR type. In future work,<br />
the nodalisation for both research reactor<br />
designs will be reviewed and<br />
tested against a range of safety transients<br />
and accidents.<br />
ABD2008A<br />
ABD2008B<br />
ABD2015<br />
I.D. Abdelrazek, E.A. Villarino:<br />
ETRR-2 Nuclear Reactor: Facility<br />
Specification; Coordinated<br />
Research Project on Innovative<br />
Methods in Research Reactor<br />
Analysis, organised by IAEA,<br />
October 2008.<br />
I.D. Abdelrazek, E.A. Villarino:<br />
ETRR-2 Nuclear Reactor:<br />
Experimental Results<br />
Coordinated Research Project<br />
on Innovative Methods in<br />
Research Reactor Analysis, organised<br />
by IAEA, October 2008.<br />
I.D. Abdelrazek, et al.: Thermal<br />
hydraulic analysis of ETRR-2<br />
using RELAP5 code, Kerntechnik<br />
80, 2015.<br />
ATH2016 G. Lerchl et.al.: ATHLET 3.1A<br />
User’s Manual, GRS-P-1/Vol.1,<br />
Ref.7, March 2016.<br />
IAEA2005<br />
IAEA2016<br />
IAEA2016B<br />
REI2009<br />
RRDB<strong>2018</strong><br />
Authors<br />
IAEA: Research reactor<br />
utilization, safety, decommissioning,<br />
fuel and waste management,<br />
ISBN 92-0-113904-7,<br />
IAEA 2005.<br />
IAEA: Safety of Research<br />
Reactors, IAEA Safety Standards<br />
Series No. SSR-3, Vienna<br />
Austria, 2016, ISSN 1020-525X.<br />
IAEA: History, development and<br />
future of TRIGA research<br />
reactors, Technical Report<br />
Series No. 482, ISBN 978-92-0-<br />
102016-1, IAEA 2016.<br />
P. A. L. Resi, et al.: Assessment of<br />
a RELAP5 model for the IPR-R1<br />
TRIGA research reactor, International<br />
Nuclear Atlantic<br />
Conference – INAC 2009,<br />
ISBN: 978-85-99141-03-8.<br />
IAEA: Research Reactor<br />
Database, Website URL:<br />
https://nucleus.iaea.org/RRDB/<br />
RR/ReactorSearch.aspx?rf=1<br />
(01.02.<strong>2018</strong>).<br />
Vera Koppers<br />
Prof. Dr.-Ing. Marco K. Koch<br />
Responsible Professor<br />
Ruhr-Universität Bochum (RUB)<br />
Universitätsstraße 150<br />
44801 Bochum, Germany<br />
| | Fig. 3-2.<br />
Core inlet (left) and core outlet (right) temperature.<br />
AMNT <strong>2018</strong> | Young Scientists' Workshop<br />
Heuristic Methods in Modelling Research Reactors for Deterministic Safety Analysis ı Vera Koppers and Marco K. Koch