Abstract
The Multi-purpose HYbrid Research ReActor (MYRRHA) is a 100 MWth pool-type fast-spectrum research reactor cooled by
Lead-Bismuth Eutectic (LBE) under development at SCK•CEN. MYRRHA’s Primary Heat eXchangers (PHX) represent the
most important interface between the nuclear island and the secondary water-steam system since they are located inside the
reactor’s pool. Recent PHX design updates employ a double-wall bayonet tube bundle coupled with a leak monitoring system
for improved safety. This technology has been used in industry for many years and proposed for nuclear applications since the
1960s. Nevertheless, a thorough demonstration of its performances and reliability are not readily available. SCK•CEN launched
an experimental Research and Development (R&D) programme to close this R&D gap. Among the envisaged facilities, the
existing COMPonent LOop Testing (COMPLOT) LBE loop type facility will be coupled to the recently constructed Heat
EXchAnger at COMplot (HEXACOM) water/steam loop, to test a single tube Primary Heat eXchanger (PHX) representative of
MYRRHA (full scale).
This paper aims to introduce the PHX test section and the HEXACOM facility, together with the preliminary T-H system code
(RELAP-5 mod3.3) analyses conducted in support to the design of experiments. The main focus is given to the performances of
the double wall bayonet tube PHX with leak monitoring system based on pressurized helical cavities.
Details
Original language | English |
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Title of host publication | SESAME international workshop |
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Publisher | Unknown |
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Pages | 1-13 |
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Number of pages | 13 |
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Publication status | Published - 19 Mar 2019 |
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Event | SESAME International Workshop - NRG, Petten, Netherlands Duration: 19 Mar 2019 → 21 Mar 2019 |
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Workshop | SESAME International Workshop |
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Country | Netherlands |
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City | Petten |
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Period | 2019-03-19 → 2019-03-21 |
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