Research of Thermal Hydraulic Conditions Effect on PWR CIPS Risk

In order to reveal the effect of thermal hydraulic conditions on the PWR CIPS risk, the evaluation of a PWR CIPS risk in the first cycle under different core flow rates, average primary temperatures, power levels, and primary pressures was conducted by combining thermal hydraulic codes LINDEN and CR...

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Bibliographic Details
Published inFrontiers in energy research Vol. 10
Main Authors Meng, Shuqi, Yan, Yalun, Hu, Yousen, Hu, Yisong, Ruan, Tianming
Format Journal Article
LanguageEnglish
Published Frontiers Media S.A 02.03.2022
Subjects
boron precipitation
CIPS (crud-induced power shift)
PWR (pressurized water reactor)
SNB (subcooled nucleate boiling)
thermal hydraulic
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Summary:In order to reveal the effect of thermal hydraulic conditions on the PWR CIPS risk, the evaluation of a PWR CIPS risk in the first cycle under different core flow rates, average primary temperatures, power levels, and primary pressures was conducted by combining thermal hydraulic codes LINDEN and CRUD (Chalk River unidentified deposit) analysis software CAMPSIS. The research result illustrating the essential effect of thermal hydraulic conditions on CIPS is changing the SNB (subcooled nucleate boiling) level of the fuel assembly’s surface; thus, boron precipitation and local power distribution will be affected. Theoretical evidence and statistical support of the effect of thermal hydraulic conditions on the PWR CIPS risk could be obtained via this research.
ISSN:2296-598X
2296-598X
DOI:10.3389/fenrg.2022.823872