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RISS 인기검색어
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- 저자 : Uhm Jae-Beop (검색결과 4 건)
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노외핵계측계통 직류전원공급장치의 내환경 검증에 관한 연구
김성영,정운관,엄재법 조선대학교 에너지.자원신기술연구소 2004 에너지·자원신기술연구소 논문지 Vol.26 No.1
According to the procedure of Equipment Qualification on this study, It shows that The DC Power supply of safety Class 1E which will make use of Nuclear Instrumentation System in the Ko-ri 3 & 4 unit, is the example of Equipment Qualification establish a fact that is able to have safety function executed, and can be confirmed on the Environmental Qualification that is able to have application to the Ko-ri Nuclear Power Plant. It hopes that the procedure to present on this study and the definite example, for the Equipment Qualification to have large expense in the domestic manufacturing industries that localized the mini-control component used in the Nuclear Power Plant depends on the import mostly, are large cooperation in the domestic manufacturing industries of the field of Nuclear Power industry.
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정재후(Jae Hoo Jung),윤지섭(Ji Sup Yoon),김영환(Young Hwan Kim),엄재법(Jae Beop Uhm) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
We have developed a slitting machine which separates the UO₂ pallets from the fuel rod clad by slitting the 25㎝ long rod-cut. Since the device will be operated in a intense radiation field, the device should be radiation-tolerant, remotely operable and maintainable. Also the throughput of the device should be fast enough so that it can meet the requirements of the overall process. We introduced new design of the slitting device while considering these concerns. New design includes the semi-automation of the loading-unloading process of the rod-cut, the automatic separation of the pellets and clad, and remote operability and maintainability, etc. The performance of the slitting device was tested by using the simulated fuel rod-cut. Test results showed that over 95 % of fuel rods were successfully separated and over 40 % of the operation time was reduced.
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Young-Hwan Kim,Ji-Sup Yoon,Jae_Hoo Jung,Dong-Hee Hong,Jae-Beop Uhm 한국방사성폐기물학회 2006 방사성폐기물학회지 Vol.4 No.3
[ ] 펠릿 20 kg HM/batch용 분말화 장치는 차세대관리 공정의 금속전환로 안으로 균질화된 분말을 공급하기 위하여 펠릿을 산화하여 으로 분말화하는 장치이다. 본 연구에는 펠릿 20 kg HM/batch용 분말화 장치 설계모델을 제시하고, 실증용 분말화 장치를 제작하여 검증실험을 수행한다. 분말화 장치 설계모델은 내부구조, 성능, 가열로 위치와 크기 등이 고려된다. 실험 방법은 펠릿 20 kg HM/batch용 분말화 장치 설계 모델에 따라 기존의 3단 메시 분말화 장치를 이용하여 분말의 메시 투과시험과 온도변화 특성 실험을 하여 장치 내부구조를 결정한다. 펠릿 20 kg HM/batch의 산화 반응도 실험과 가열로 위치별 온도 분포를 측정하고 장치의 성능과 가열로의 영 역 위치를 결정한다. 장치 크기를 결정하기 위하여 산화전의 20kg의 펠릿과 산화후의 부피를 측정한다. 이상의 결과를 토대로 실증용 분말화 장치를 설계. 제작하고, 검증을 위하여 산화도, 분말특성 및 분석 등을 수행하였다. 산화반응 실험결과 에서 기존장치에 비하여 분말의 메시 투과율이 향상되었으며, 기존의 3단 메시 장치의 펠릿산화시간이 13시간 소요된 것에 비하여 8시간으로 단축되었다. 분말 특성 분석결과, 평균 입도가 이었다. 제작된 펠릿 20 kg HM/batch용 분말화 장치 성능과 설계모델 예측 값은 대체로 잘 일치되었다. Vol-oxidizer is a device to convert pellets into powder and to feed a homogeneous powder into a Metal Conversion Reactor in the ACP(Advanced Spent Fuel Conditioning Process). In this paper, we propose a design model of the vol-oxidizer, develop the new vol-oxidizer with a capacity of 20 kg HM/batch in pellets, and conduct a verification for the device. Design considerations include the internal structure, the capacity, the heating position of the device, and the size. The dimensions of the new vol-oxidizer are decided by the design model. We determine a permeability test of the measuring the temperature distribution, and the volume of and . We manufactured the new vol-oxidizer for a 20 kg HM/batch in pellets, and then analyzed the characteristics of the powder for the verification. The experimental results show that the permeability of the throughout mesh enhance more than old vol-oxidizer, the oxidation time takes only 8 hours when compared with the 13 hours of the old device, and the average distribution of particle size is . The capacities of new vol-oxidizer for a 20 kg HM/batch in pellets were agree well with the predictions of design model.
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설계 모델을 이용한 $UO_2$ 펠릿 20 kg HM/batch용 분말화 장치 제작
김영환,윤지섭,정재후,홍동희,엄재법,Kim Young-Hwan,Yoon Ji-Sup,Jung Jae-Hoo,Hong Dong-Hee,Uhm Jae-Beop 한국방사성폐기물학회 2006 방사성폐기물학회지 Vol.4 No.3
Vol-oxidizer is a device to convert $UO_2$ pellets into $U_3O_8$ powder and to feed a homogeneous powder into a Metal Conversion Reactor in the ACP(Advanced Spent Fuel Conditioning Process). In this paper, we propose a design model of the vol-oxidizer, develop the new vol-oxidizer with a capacity of 20 kg HM/batch in $UO_2$ pellets, and conduct a verification for the device. Design considerations include the internal structure, the capacity, the heating position of the device, and the size. The dimensions of the new vol-oxidizer are decided by the design model. We determine a permeability test of the $U_3O_8$ measuring the temperature distribution, and the volume of $UO_2$ and $U_3O_8$. We manufactured the new vol-oxidizer for a 20 kg HM/batch in $UO_2$ pellets, and then analyzed the characteristics of the $U_3O_8$ powder for the verification. The experimental results show that the permeability of the $U_3O_8$ throughout mesh enhance more than old vol-oxidizer, the oxidation time takes only 8 hours when compared with the 13 hours of the old device, and the average distribution of particle size is $40{\mu}m$. The capacities of new vol-oxidizer for a 20 kg HM/batch in $UO_2$ pellets were agree well with the predictions of design model.
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