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Ar 가스 압력과 RF 전력변화에 따른 유도결합형 플라즈마 E-H모드 변환의 광학적 특성
허인성,조주웅,이영환,김광수,최용성,박대희 대한전기학회 2004 전기학회논문지C Vol.53 No.1(C)
In this paper, the emission properties of electrodeless fluorescent lamp were discussed using the inductively coupled plasma. To transmit the electromagnetic energy into the chamber, a RF power of 13.56 [MHz] was applied to the antenna and considering the Ar gas pressure and the RF electric power change, the emission spectrum, Ar I line, luminance were investigated. At this time, the input parameter for ICP RF plasma, Ar gas pressure and RF power were applied in the range of 10~60 [mTorr], 10~300 [W], respectively. From emission intensity and lumnance intensity results, the mode transition from E-mode to H-mode was observed. This implies that this method can be used to find an optimal RF power for efficient light illumination in an electrodeless fluorescent lamp.
Ne, Ar, Kr 혼합가스에서의 유도결합형 플라즈마 방전특성
허인성(In-Sung Her),최용성(Yong-Sung Choi),이종찬(Chong-Chan Lee),정영일(Young-Il Jeong),박대희(Dae-Hee Park) 한국조명·전기설비학회 2004 한국조명·전기설비학회 학술대회논문집 Vol.2004 No.11월
Recently, the environmental problem has received considerable attention. so, many lamps have been developing for environmental requirement and energy efficiency. also, at glow discharge lamp researchers try to reduce energy spending that is power saving lamp. this kind requirement agree with strong points of electrodeless fluorescent lamp has received to now lighting sauce. At low pressure as mTorr I.C.P make high density plasma easily, is good to maintain discharge, has high ionization and does not have failing lighting and losing ability of electron radiation by oxidation and volatilization of electrodes, because this tape does not have electrodes. This point of I.C.P can use at electrodeless fluorescent lamp in this study ICP display elements and Ar, Ne, Kr are researched for optical characteristic. each gas is looked into optical characteristic, also mixed gases is experiment for optical characteristic.
CFD전산모사를 이용한 Al 6063 Heat Sink 최적화 설계와 열전도성 Polycarbonate와의 방열성능 비교 분석
허인성(In-Sung Her),이세일(Se-Il Lee),이아람(A-Ram Lee),유영문(Young Moon Yu) 한국조명·전기설비학회 2014 조명·전기설비학회논문지 Vol.28 No.7
In the LED lighting applications, because LED packages are the origin of heat generation, there are thermal design problem on heat sinks. In the thermal design, it is important to consider the total volume and the total weight of heat sink simultaneously. In this study, an Al 6063 heat sink was optimized using Computational Fluid Dynamics(CFD) simulation tool for the cooling of 30W LED module, and then the cooling performance and the total weight of heat sinks with Al 6063 and Thermal Conductive Polycarbonate(TCP) were compared under the same conditions. As the result of simulation, an Al 6063 heat sink was optimized with 22 ea. of fins and 1.6 mm of fin thickness. LED Junction Temperature of the TCP Heat Sink was 5.6℃ higher, but total weight of it was 47 % less than the Al 6063.