Signal processing method of bubble detection in sodium fl ow based on inverse Fourier transform to calculate energy ratio

Wei Xu; Ke-Jun Xu; Xin-Long Yu; Ya Huang; Wen-Kai Wu

doi:https://doi.org/10.1016/j.net.2021.03.025

추천

검색

자료유형: 학술저널

저자정보: Wei Xu (Hefei University of Technology) Ke-Jun Xu (Hefei University of Technology) Xin-Long Yu (Hefei University of Technology) Ya Huang (Hefei University of Technology) Wen-Kai Wu (Hefei University of Technology)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제9호

발행연도: 2021.9

수록면: 3,122 - 3,125 (4page)

DOI: https://doi.org/10.1016/j.net.2021.03.025

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

Electromagnetic vortex flowmeter is a new type of instrument for detecting leakage of steam generator,and the signal processing method based on the envelope to calculate energy ratio can effectively detectbubbles in sodium flow. The signal processing method is not affected by changes in the amplitude of thesensor output signal, which is caused by changes in magnetic field strength and other factors. However,the detection sensitivity of the electromagnetic vortex flowmeter is reduced. To this end, a signal processingmethod based on inverse Fourier transform to calculate energy ratio is proposed. According tothe difference between the frequency band of the bubble noise signal and the flow signal, only theamplitude in the frequency band of the flow signal is retained in the frequency domain, and then theflow signal is obtained by the inverse Fourier transform method, thereby calculating the energy ratio. Using this method to process the experimental data, the results show that it can detect 0.1 g/s leak rate ofwater in the steam generator, and its performance is significantly better than that of the signal processingmethod based on the envelope to calculate energy ratio.

#Sodium-cooled fast reactor #Steam generator #Leak detection #Electromagnetic vortex flowmeter #Signal processing method

참고문헌 (4)

참고문헌 신청

B. Raj / 2002 / Development of fuels and structural materials for fast breeder reactors / Sadhana 27(5):527~558

Ji-Young Jeong / 2009 / Analysis of micro-leak sodium-water reaction phenomena in a sodium-cooled fast reactor steam generator / Korean Journal of Chemical Engineering 26(4):1004~1008

R. Hans / 1977 / Leak detection of steam or water into sodium in steam generators of liquid-metal fast breeder reactors / Atom. Energy Rev 15(4):611~699

Xu Wei / 2020 / Signal processing method based on energy ratio for detecting leakage of SG using EVFM / Nuclear Engineering and Technology 52(8):1677~1688

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!