http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
수치해석을 통한 KSTAR 주장치 열차폐 패널 열.유동 특성해석
김동락,김광선,노영미,조승연,김승현 한국초전도저온공학회 2002 한국초전도저온공학회논문지 Vol.4 No.2
In order to derive the detailed design of Thermal Shield Cryopanel. which plays a role to make the Tokamak Nuclear Fusion Equipment work at both static and efficient conditions the commercially available software package FLUENT Version 5.3, was utilized. This study investigated the effects of thermal sources and distributions on the temperatures of Lid. Body. Base. and EH-Port Cryopanel by the numerical technique whose grid generations cover the solid and 9as region of the panel. The physical model of the Thermal Shield Cryopanel is that the 10mm diameter of the pipe with 1mm thickness is soldered on the Stainless steel Panel with 4mm thickness. The heat fluxes to the panel are assumed to be by thermal radiation in the vacuum space and by conduction through the supporters. The inlet conditions of Helium gas are 20 atmospheric Pressures and 60K temperature. The panel shapes with cooling Pipes and the operational conditions to keep appropriate temperature distribution of Thermal Shield Cryopanel Have been found and suggested.
김동락(Dong-Rak Kim),김현(Hyun Kim),이치노세토시히코(Toshihiko Ichinose) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
The voltages of unit cells of a fuel cell stack are one of the most significant factors to detect failure conditions and thereof safely control and operate the fuel cell system. In this paper, we describe two methods to monitor the voltages of the unit cells of a stack in consideration of data accuracy, circuit extensibility to various numbers of cells, and cost. The reported methods are approached by (Ⅰ) the power isolation of cell voltage monitoring part from the communications part and (Ⅱ) the utilization of a commercially available cell monitoring integrated circuit IC of a Li-ion battery.