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LCC를 고려한 KSTAR 냉각수설비의 설계특징 및 성능평가
김영진(Young-Jin Kim),정남용(Nam-Yong Jung),임동석(Dong-Seok Im),김상태(Sang-Tae Kim),김양수(Yaung-Su Kim),유성연(Seong-Yeon Yoo) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
KSTAR is the final aim that is development of the nuclear fusion power plant to generate the green and stable high-capacity electricity. Most of the components of KSTAR are to obtain the thermal stability by deionized (DI) water. KSTAR performed the plasma experiment annual is used the electric energy of many billions won per year, and the cooling water system (CWS) currently comprise about twenty five percent of the total energy. Therefore, the CWS should be minimized fabrication, operation and maintenance costs. In order to minimize the life cycle cost (LCC), the CWS has design features as following: to classify as a pulse load cooling loop type operated intermittently and a continuous load cooling loop type operated continuously, to apply two-step heat exchanger (HE) in the cooling loops, to install the by-pass pipe between the cooling tower water loops and the chilled water loops for shutdown chillers in winter, to equip a separate small pump system and interface piping because the first neutral beam injection (NBI-1) is carried out the experiment operation at day and the standby unload one, being operation for beamline vacuum, at night, and to fit a 3-way valve and a pre-cooler in a plasma facing component (PFC) nitrogen gas baking system. In operation results, we analyzed the flow stream in a cooling water storage tank and a tower water header, the water temperature state in the two-step HE, and the performance of a polishing system, the NBI-1 cooling system and the PFC nitrogen gas baking system.
양명지(Myoung-Ji Yang),오완식(wan-shik Oh),김양수(Su-Yaung Kim),이유경(Yu-Kyeong Lee),김재문(Jae-Moon Kim) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10
전차선로 주요설비인 급전계통 부하개폐기 정밀안전점검 방법 고찰