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Modelling of a Nord...
Modelling of a Nordic BWR containment and suppression pool behavior during a LOCA with GOTHIC 8.1
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- Estévez-Albuja, S. (författare)
- Universidad Politécnica de Madrid (UPM), Spain
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- Gallego-Marcos, Ignacio (författare)
- KTH,Kärnenergiteknik
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- Kudinov, Pavel, 1972- (författare)
- KTH,Kärnkraftssäkerhet
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- Jiménez, G. (författare)
- Universidad Politécnica de Madrid (UPM), Spain
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(creator_code:org_t)
- Elsevier, 2020
- 2020
- Engelska.
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Ingår i: Annals of Nuclear Energy. - : Elsevier. - 0306-4549 .- 1873-2100. ; 136
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Boiling water reactors use the Pressure Suppression Pool (PSP) to relieve the containment pressure in case of an accident. During the event of a Loss of Coolant Accident (LOCA), drywell air and steam are injected into the PSP through blowdown pipes. This may lead to thermal stratification, which is a relevant safety issue as it leads to higher water surface temperatures than in mixed conditions and thus, to higher containment pressures. The Effective Heat (EHS) and Momentum (EMS) Source models were previously introduced to predict the effect of small-scale direct contact condensation phenomena on the large-scale pool water circulation. In this paper, the EHS/EMS models are extended by adding the effect of non-condensable gases on the chugging regime. The EHS/EMS models are implemented in the GOTHIC code to model a full-scale Nordic BWR containment under different LOCA scenarios. The results show that thermal stratification can be developed in the PSP.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- BWR
- Chugging
- Effective momentum source
- GOTHIC
- LOCA
- Pressure suppression pool
- Architecture
- Lakes
- Loss of coolant accidents
- Thermal stratification
- Direct contact condensation
- Momentum sources
- Non-condensable gas
- Safety issues
- Source models
- Water surface temperature
- Boiling water reactors
- Kärnenergiteknik
- Nuclear Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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