Neutronic feasibility of a soluble Boron-Free PWR core design with the bigt burnable absorbers

Mohd Syukri Yahya, Yonghee Kim, Hyeong Heon Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A soluble boron-free (SBF) pressurized water reactor (PWR) core potentially offers a number of significant operational improvements over commercial designs. Firstly, it eliminates risk of boric acid-induced corrosion on structural materials in reactor pressure vessel. Secondly, it is possibly simpler in plant design, operation and maintenance. Thirdly, it may have smaller accumulated volumes of crud and radioactive liquid waste. Fourthly, an SBF PWR core has consistently 'large negative' moderator temperature coefficients (MTC). All these are desirable advantages in term of economic and safety of a PWR. This paper extends authors' previous research on the SBF PWR core with BigT ("Burnable absorber-Integrated Guide Thimble") absorber. In particular, this research investigates use of the BigT in tandem with a commercial burnable absorber technology, namely integral fuel burnable absorber (IFBA) rods, to realize an SBF AP1000 equilibrium core. 3-D core analyses of the BigT-loaded and IFBA-rodded AP1000 core were simulated using Monte Carlo Serpent-2 code with ENDF/B-VII.0 library. The equilibrium core was directly searched via repetitive Monte Carlo depletion calculations until convergence. The analyses clearly demonstrate a promising SBF PWR design as burnup reactivity swing over the equilibrium cycle is reasonably small (~1,850 pcm). Fairly consistent albeit high radial power peaks (<2.0) with strongly negative MTC and sufficiently high shutdown margin (>2,600 pcm) are obtained throughout the cycle. In conclusion, an SBF AP1000 equilibrium core design is neutronically-feasible with BigT absorbers and IFBA rods.

Original languageEnglish
Title of host publicationInternational Congress on Advances in Nuclear Power Plants, ICAPP 2016
PublisherAmerican Nuclear Society
Pages1707-1712
Number of pages6
ISBN (Electronic)9781510825949
Publication statusPublished - 01 Jan 2016
Event2016 International Congress on Advances in Nuclear Power Plants, ICAPP 2016 - San Francisco, United States
Duration: 17 Apr 201620 Apr 2016

Publication series

NameInternational Congress on Advances in Nuclear Power Plants, ICAPP 2016
Volume3

Other

Other2016 International Congress on Advances in Nuclear Power Plants, ICAPP 2016
CountryUnited States
CitySan Francisco
Period17/04/1620/04/16

Fingerprint

Reactor cores
Pressurized water reactors
Boron
Boric acid
Moderators
Pressure vessels
Corrosion
Economics
Liquids

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering

Cite this

Yahya, M. S., Kim, Y., & Kim, H. H. (2016). Neutronic feasibility of a soluble Boron-Free PWR core design with the bigt burnable absorbers. In International Congress on Advances in Nuclear Power Plants, ICAPP 2016 (pp. 1707-1712). (International Congress on Advances in Nuclear Power Plants, ICAPP 2016; Vol. 3). American Nuclear Society.
Yahya, Mohd Syukri ; Kim, Yonghee ; Kim, Hyeong Heon. / Neutronic feasibility of a soluble Boron-Free PWR core design with the bigt burnable absorbers. International Congress on Advances in Nuclear Power Plants, ICAPP 2016. American Nuclear Society, 2016. pp. 1707-1712 (International Congress on Advances in Nuclear Power Plants, ICAPP 2016).
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Yahya, MS, Kim, Y & Kim, HH 2016, Neutronic feasibility of a soluble Boron-Free PWR core design with the bigt burnable absorbers. in International Congress on Advances in Nuclear Power Plants, ICAPP 2016. International Congress on Advances in Nuclear Power Plants, ICAPP 2016, vol. 3, American Nuclear Society, pp. 1707-1712, 2016 International Congress on Advances in Nuclear Power Plants, ICAPP 2016, San Francisco, United States, 17/04/16.

Neutronic feasibility of a soluble Boron-Free PWR core design with the bigt burnable absorbers. / Yahya, Mohd Syukri; Kim, Yonghee; Kim, Hyeong Heon.

International Congress on Advances in Nuclear Power Plants, ICAPP 2016. American Nuclear Society, 2016. p. 1707-1712 (International Congress on Advances in Nuclear Power Plants, ICAPP 2016; Vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Yahya MS, Kim Y, Kim HH. Neutronic feasibility of a soluble Boron-Free PWR core design with the bigt burnable absorbers. In International Congress on Advances in Nuclear Power Plants, ICAPP 2016. American Nuclear Society. 2016. p. 1707-1712. (International Congress on Advances in Nuclear Power Plants, ICAPP 2016).