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RISS 인기검색어
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- 저자 : 진재현(Jae Hyoun Jin) (검색결과 3 건)
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정재후(Jae Hoo Jung),윤지섭(Ji Sup Yoon),김영환(Young Hwan Kim),진재현(Jae Hyoun Jin),홍동희(Dong Hee Hong) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
A slitting device which is separating the pellets and hulls from the spent nuclear fuel rod cuts was developed. This device plays an important role in slitting the fuel rod cut into 3 parts in the axial direction of the rod cut. When the rod cuts are slitting in the device installed in the hot cell, if the pellets escape from the device through operator's carelessness, the hot cell is contaminated by the pellets. High level radiation emitting from the pellets lead to affect negatively the other devices in the hot cell. In connection with that problem, the existing device was improved by a series of experiments, and renewed for having higher treating capacity of spent nuclear fuels. The renewed slitting device can treat 20 kgHM/batch at a time, and employed in a scale of pilot or commercial plant for the process of nuclear fuel cycle in the future.
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정재후(Jae Hoo Jung),윤지섭(Ji Sup Yoon),김영환(Young Hwan Kim),진재현(Jae Hyoun Jin) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
The dry pulverizing/mixing device is used to deal with the spent fuels for the safe disposal. The separated pellets from hulls by a slitting device are put and oxidized from UO₂ solid pellet to U:08 powder in the device. The device have been developed based on a voloxidation method which is one of several dry de-cladding methods. We have bench marked dry de-cladding methods, analyzed applicability to the advanced spent fuel management, integrated and compared several configuration, and finally derived detailed specifications. proper to requirements for the device. Also. thermal characteristics of the device such as thermal stress and strain have been analyzed by the commercial software. I-DEAS. and the reliability of the results have been verified by the KOLAS (KOrea Laboratory Accreditation Scheme). The DO₂ solid pellets arc put in the device which has a capacity of 20 kgHM per a batch. heated up about 600℃ in the air environment. Then. the UO₂ solid pellets are oxidized into the U₃O_8 powder. and the powder is collected in a special vessel. The device has been designed and developed as follows: the multi-staged fine hole meshes arc used to reduce the size of the powder gradually. heat and air(oxygen) are supplied continuously to reduce the reaction time. and slight vibration effect are applied to collect powder cling to the device.
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김영환(Young Hwan Kim),윤지섭(Ji Sup Yoon),진재현(Jae Hyoun Jin),홍동희(Dong Hee Hong),정재후(Jae Hoo Jung) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
The authors have settled general modular requirements by analyzing related literatures, but general modular requirements are too massive to be applicable to devices of the Advanced Spent Fuel Management Process of KAERI. So, the very related requirements have to be selected, applied, and modified for the devices. We have chosen two devices, the metallizing device and the dry pulverizing/mixing device for example. The target modules of these devices have been selected by evaluating the relative environmental effects, such as radiation amount, operating temperature, corrosion. The remote assembling and disassembling possibilities of the selected modules have been. analyzed from the viewpoints of visibility, interference, approach, weight and so on. Finally, We have presented modular requirements proper to the target modules.
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