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Kafe 바로가기주관연구기관 | 한국원자력연구원 Korea Atomic Energy Research Institute |
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연구책임자 | 홍진태 |
참여연구자 | 안성호 , 정창용 , 박상준 , 심봉식 , 김가혜 , 허성호 , 김종범 , 박승재 |
보고서유형 | 1단계보고서 |
발행국가 | 대한민국 |
언어 | 한국어 |
발행년월 | 2015-01 |
과제시작연도 | 2014 |
주관부처 | 미래창조과학부 Ministry of Science, ICT and Future Planning |
등록번호 | TRKO201800009536 |
과제고유번호 | 1711009868 |
사업명 | 원자력기술개발사업 |
DB 구축일자 | 2018-05-26 |
키워드 | 핵연료노내조사시험설비.조사시험.핵연료 성능검증.노내시험부 계측.신형핵연료 개발.Fuel Test Loop.Irradiation Test.Fuel Performance Evaluation.In-pile Instrumentation.Advanced Fuel Development. |
DOI | https://doi.org/10.23000/TRKO201800009536 |
○ 핵연료 중심온도 계측기 장착용 정밀 후가공장치 개발
○ 노내시험부 온도계측 기술사양 작성
○ 조사리그 정밀 용접장치 설계 및 제작
○ 조사리그 핵연료 장착부 및 압력경계부 설계기술개발
○ 조사특성 측정용 핵연료봉 설계/제작기술 개발
○ 노내시험부 냉각수 유량계측기술 개발
○ 핵연료봉 조사리그 조립/정밀용접 장치 및 기술 개발
○ 핵연료봉 조사리그 제작기술 개발
○ 모의핵연료봉 제작 및 노외성능평가
○ 측정자료 원격취급 및 신호처리기술 개발
○ 조사리그 정밀용접 및 조립기술 개
○ 핵연료 중심온도 계측기 장착용 정밀 후가공장치 개발
○ 노내시험부 온도계측 기술사양 작성
○ 조사리그 정밀 용접장치 설계 및 제작
○ 조사리그 핵연료 장착부 및 압력경계부 설계기술개발
○ 조사특성 측정용 핵연료봉 설계/제작기술 개발
○ 노내시험부 냉각수 유량계측기술 개발
○ 핵연료봉 조사리그 조립/정밀용접 장치 및 기술 개발
○ 핵연료봉 조사리그 제작기술 개발
○ 모의핵연료봉 제작 및 노외성능평가
○ 측정자료 원격취급 및 신호처리기술 개발
○ 조사리그 정밀용접 및 조립기술 개발
○ 핵연료봉 조사리그 핵심장치 노외성능시험
( 출처 : 보고서 요약서 3p )
IV. Results of the Project
1. Development of the installation techniques for in-pile instruments and the technical specifications for temperature measurement
A. Development of precision drilling machine for the instrumentation of a thermocouple to measure the central temperature of a nuclear f
IV. Results of the Project
1. Development of the installation techniques for in-pile instruments and the technical specifications for temperature measurement
A. Development of precision drilling machine for the instrumentation of a thermocouple to measure the central temperature of a nuclear fuel pellet
- hole diameter: 1.0 mm, 1.4 mm ± 0.05
- 6 times faster (53 min./hole), 20 times longer lifetime (10 hole/drill_bit) than conventional techniques
B. Installation of thermocouples in the in-pile test section to measure the coolant temperature, and development of specification for coolant temperature measurement at the in-pile test section
- measurement accuracy: less than ±1%
C. Development of water proof joining technique between instrumentation cables and general signal cables
- end tip sealing (Rilsan) + silver brazing + water proof joining (epoxy)
- insulation resistance : larger than 10 GΩ
2. Development of Fabrication/welding devices and test rig design technology
A. Development of precision welding devices for the fabrication of nuclear fuel rod
- development of orbital TIG welding system for end cap of fuel rod
- development of an automatic laser welding system
- development of an automatic vacuum induction brazing system
B. Design improvement for fuel rod assembly and pressure boundary of test rig
- design and feasibility test of fuel rods assembly for intermediate examination
- design improvement and performance test for the instrumentation feed through part to apply graphite sealing technique : pass hydraulic pressure test (larger than 21.9 MPa), and helium leak test (less than 5.0x10-9 torr․l/sec)
C. Design improvement of the double pressure vessel to concern highly activated area
- remove thermal sleeve to prevent activation problem
3. Optimization of in-pile instrumentations and flow measurement techniques
A. Design in-pile instrumentation of the nuclear fuel rod
- in-pile instrumentation of a thermocouple to measure the central temperature of nuclear fuel pellets
- in-pile instrumentation of a LVDT to measure the pressure of fission gas
B. Design of turbine flowmeter at in-pile test section
- change bottom design of the inner pressure vessel to install the turbine flow meter
- development of coolant flow simulator and check the soundness of flow meter
C. Development of signal processing and data acquisition system for precise measurement of coolant flow
- design protocol to extract fluctuation signal from temperature signals
- development of specification for sensing, signal processing and data acquisition system
4. Optimization of fabrication technology for test rig and in-pile pressure vessel
A. Development of precision welding technologies for the fabrication of test rig
- optimize spot TIG welding process in the high pressure chamber
- optimize laser welding process according to penetration depth and material
- optimize vacuum induction brazing process to seal out the instrumentation feed through part
B. Specification for the fabrication of pressure boundary part in the test rig
C. Specification for the assembly process of in-pile pressure vessel to endure highly activated circumstance
5. Out-pile performance verification of in-pile instrumentation and flow measurement techniques
A. Fabrication of instrumented fuel rod mockup and out-pile performance verification test
B. Development of coolant flow simulator and out-pile performance verification for coolant flow measurement
- calibration of flow meters in the in-pile pressure vessel
- development of flow measurement technique using cross correlation of fluctuation signals obtained from thermocouples
C. Technology development of remote handling and display/storage of irradiation data
6. Out-pile performance verification of test rig and in-pile pressure vessel
A. Development of assembly process specification for the test rig and in-pile pressure vessel
B. Out-pile sealing performance test for the pressure boundary between test rig and in-pile pressure vessel
- fabrication of test mockup by adding a metal seal at the pressure boundary
- pass hydraulic pressure test up to 22.5 MPa
C. Out-pile sealing performance test for the pressure boundary between IPS head and double pressure vessel
- fabrication of test mockup using EB weld
- pass hydraulic pressure test (larger than 22.5 MPa), NDE, and tensile test
( 출처 : SUMMARY 11p )
과제명(ProjectTitle) : | - |
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연구책임자(Manager) : | - |
과제기간(DetailSeriesProject) : | - |
총연구비 (DetailSeriesProject) : | - |
키워드(keyword) : | - |
과제수행기간(LeadAgency) : | - |
연구목표(Goal) : | - |
연구내용(Abstract) : | - |
기대효과(Effect) : | - |
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