Nuclear Engineering and Technology

  • 제54권12호
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  • Pages.4798-4808
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  • 2022
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Development of the vapor film thickness correlation in porous corrosion deposits on the cladding in PWR

  • Yuan Shen (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Zhengang Duan (Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China) ;
  • Chuan Lu (Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China) ;
  • Li Ji (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Caishan Jiao (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Hongguo Hou (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Nan Chao (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Meng Zhang (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Yu Zhou (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University) ;
  • Yang Gao (Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University)
  • 투고 : 2022.03.28
  • 심사 : 2022.08.14
  • 발행 : 2022.12.25
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초록

The porous corrosion deposits (known as CRUD) adhered to the cladding have an important effect on the heat transfer from fuel rods to coolant in PWRs. The vapor film is the main constituent in the two-phase film boiling model. This paper presents a vapor film thickness correlation, associated with CRUD porosity, CRUD chimney density, CRUD particle size, CRUD thickness and heat flux. The dependences of the vapor film thickness on the various influential factors can be intuitively reflected from this vapor film thickness correlation. The temperature, pressure, and boric acid concentration distributions in CRUD can be well predicted using the two-phase film boiling model coupled with the vapor film thickness correlation. It suggests that the vapor thickness correlation can estimate the vapor film thickness more conveniently than the previously reported vapor thickness calculation methods.

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과제정보

This work was financially supported by Sichuan Science and Technology Program (2021YJ0512).

참고문헌

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