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Conceptual study of...
Conceptual study of axial offset fluctuations upon stepwise power changes in a thorium-plutonium core to improve load-following conditions
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- Lau, Cheuk Wah, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Dykin, Victor, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nylén, Henrik, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Insulander Björk, Klara L, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Sandberg, U. (author)
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
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In: Annals of Nuclear Energy. - : Elsevier BV. - 0306-4549 .- 1873-2100. ; 72, s. 84-89
- Related links:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The increased share of renewable energy, such as wind and solar power, will increase the demand for load-following power sources, and nuclear reactors could be one option. However, during rapid load-following events, traditional UOX cores could be restricted by the volatile oscillation of the power distribution. Therefore, a conceptual study on stability properties of Th-MOX PWR concerning axial offset power excursion during load-following events are investigated and discussed. The study is performed in SIMULATE-3 for a realistic PWR core (Ringhals-3) at the end of cycle, where the largest amplitude of the axial offset oscillations is expected. It is shown that the Th-MOX core possesses much better stability characteristics and shorter reactor dead time compared with a traditional UOX core, and the main reasons are the lower sensitivity to perturbations in the neutron spectrum, lower xenon poisoning and lower thermal neutron flux.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
Keyword
- Thorium
- Load following
- Xenon oscillations
- Axial offset
- PWR
- Stability
Publication and Content Type
- art (subject category)
- ref (subject category)
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