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KINGS 학과운영팀 행정조교를 다음과 같이 채용하고자 합니다. 관심 있는 분들의 많은 지원 부탁드립니다.

□ 채용인원: 총 1명 (학과운영팀 소속)

□ 공고시작일: 2021. 8. 23.(월)

□ 접수기간: 2021. 8. 23.(월) ~ 2021. 9. 5.(일) 24:00

자세한 사항은 첨부된 공고문을 참고하시기 바랍니다.

KINGS 학과운영팀 행정조교를 다음과 같이 채용하고자 합니다. 관심 있는 분들의 많은 지원 부탁드립니다.

□ 채용인원: 총 1명 (학과운영팀 소속)

□ 공고시작일: 2021. 8. 6.(금)

□ 접수기간: 2021. 8. 6.(금) ~ 2021. 8. 20.(금) 12:00

자세한 사항은 첨부된 공고문을 참고하시기 바랍니다.

Mr. Muhammad Subhan (NPP alumni)’s paper was selected as a best paper of the 2021 KSME Reliability Division 2021 Spring Conference.

The Abstract of the paper is:
 Currently, the seismic analysis model of APR 1400 consists of beam and lumped mass in 2D separated model in horizontal direction and vertical direction. Also in the core, fuel assemblies are aggregated and simplified into few beam and lumped masses. WEC also used beam and lumped mass elements for the AP1000 seismic analysis model, but used 3D beam and mass to represent whole core where fuel assemblies are aggregated as well. The main purpose of the lumped mass and beam modeling of fuel assembly is to simplify model and make core dynamic analysis possible without aggregating all fuels in core into few beam elements and lumped masses. This research investigates 3D dynamic analysis modeling methodology of nuclear fuel assembly reflecting performance improvement of computer technology and analysis software functionality. A 3D modeling approach of FA was proposed in which fuel rods mass was lumped, CEA guide tubes and spacer grid are represented by beam elements and lower end-fitting and upper end-fitting are represented by shell elements. The FA dynamic analysis model so developed consists of 2,740 elements and 5,148 nodes. The model was optimized for the 1st mode from the test results of FA applying modal analysis. The model was successfully represents 1st mode modal values. Also the modal analysis results exhibits similarities for 2nd, 3rd and 4th modes, hence the model can be used for further dynamic analysis of fuel assembly such as seismic analysis or time-history analysis. The corresponding mode shapes revealed additional mode of twist motion that was not shown by current FA dynamic model of APR1400 or AP1000. This research revealed there are extra modes of twist motion that could induce contact between FAs and would require further investigation of dynamic interaction between FAs.

Mr. Ahmed Mohammed Abd El-Hameed Abd EL-Samed (Department of Nuclear Power Plant Engineering, second-year student) won the KNS (Korea Nuclear Society) scholarship 2021 based on his excellent academic performance.

The awarding ceremony for KNS scholarships had been held at KNS spring conferences before the pandemic; however, this year, there was no awarding ceremony since the KNS spring conference was held online due to the COVID-19.

On behalf of KNS, Prof. Eric Yee, Head of the Department of Nuclear Power Plant Engineering, and Prof. Kim Ju-youl, Mr. Ahmed’s advisor, awarded the certificate to Mr. Ahmed on 18 May 2021 at KINGS.

(from left to right) Prof. Kim Ju-youl and Mr. Ahmed.

 

 

(from left to right) Prof. Kim Ju-youl, Mr. Ahmed, and Prof. Eric Yee