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김용식(Kim Yong-Sik),강기환(Kang Gi-Hwan),심상용(Sim Sang-Yong),이후락(Lee Hoo-Rock),이진섭(Lee Jin-Seob),홍진기(Hong Jin-Ki) 한국태양에너지학회 2009 한국태양에너지학회 논문집 Vol.29 No.1
This paper aims at enhancing the electric production efficiency of photovoltaic(PV) system. The electrical power of PV system is proportional to light intensity on a PV module surface. In this paper, we apply two types of systems to enhance power generation efficiency. First of all, concentring sunlight using specular surface and one-axis tracking system which traces the sun with vertical direction are applied in this project. From this, we analyze the fixed type method and power generation efficiency.
476배의 집광 비를 갖는 프레넬 렌즈를 이용한 이차 광학계 설계
강성원(Sung-won Kang),심상용(Sang-yong Sim),김용환(Yong-hwan Kim),김용식(Yong-sik Kim),이후락(Hoo-Rock Lee),박창대(Chang-dae Park),정경열(Kyung-Yul Chung) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.10
Primary fresnel lens with 476X concentration factor has its focal length of 200㎜. Focal length of primary lens is set up for size of 5㎜ by 5㎜ triple junction solar cell. Tilted angle of incident sun light causes focal point of primary fresnel lens away from its original position. Secondary optics is built on corrected version of its tilted angle tolerance of ±1°. This design is modeled from spherical type lens due to low cost of manufacture. We analyze both solar ray distributions of focal point region in case of no secondary optics and secondary optics. Secondary optics for our design are the most important issue for off axis from sun light. Advantages of secondary optical elements of our design are irradiation uniformity and acceptance angle tolerance of ±1°
강성원(Sung-won Kang),이후락(Hoo-Rock Lee),심상용(Sang-yong Sim),김용환(Yong-hwan Kim),김용식(Yong-sik Kim),박창대(Chang-dae Park),정경열(Kyung-Yul Chung) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.10
High concentration fresnel lens design is required for high optical efficiency for CPV(Concentraion Photovoltaic)system. But optical efficiency of fresnel lens increases with focal length. Too much longer focal length is not reasonable for practical CPV module. Optimized and cost effective focal length is feasible for practical CPV module. Draft angle and facet corner rounding are great loss factor of optical efficiency for practical fresnel lens manufacture procedure. Optical efficiency of fresnel lens design is not only determined from focal length of its lens but from its draft angle and facet corner rounding. We will analysis optical loss factor of fresnel lens with its draft angle and facet corner rounding.
Ko, Young-Joon,Lee, Hyang-Sim,Jeoung, Hye-Young,Heo, Eun-Jeong,Ko, Hyo-Rim,Chang, Byung-Sik,Joo, Hoo-Don,Gerelmaa, U.,Dashzeveg, B.,Tserendorj, S.,Sodnomdarjaa, R.,Park, Jong-Hyeon,Kweon, Chang-Hee,Ch American Society for Microbiology 2010 CLINICAL AND VACCINE IMMUNOLOGY Vol.17 No.1
<B>ABSTRACT</B><P>A blocking enzyme-linked immunosorbent assay (ELISA) with a baculovirus-expressed structural protein was developed for the detection of antibodies to foot-and-mouth disease virus type A. It exhibited 99% specificity with a cutoff of 53% inhibition. Its sensitivity was comparable to the sensitivities of the virus neutralization test and the liquid-phase blocking ELISA, indicating its potential as an alternative assay.</P>
고집광 태양광 시스템을 이용한 Light-pipe 및 Light-tunnel 에 관한 연구
서현수(Hyun-soo Seo),강성원(Sung-won Kang),홍진기(Jin-ki Hong),임재우(Jae-woo Lim),심상용(Sang-yong Sim),김용환(Yong-hwan Kim),김용식(Yong-sik Kim),이후락(Hoo-Rock Lee),임병주(Byung-ju Lim),정경열(Kyung-yul Chung) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.10
The purpose of this study, using with high efficiency solar cell in high concentration solar system, is comparing performance of Light-pipe and Light-tunnel which primary function to emit heat that produced by high concentration solar system with uniformly distributed light over the group Ⅲ-Ⅴ solar cell.
프리넬렌즈를 이용한 Ⅲ-Ⅴ족 CPV 단위 모듈의 야외 성능시험에 관한 연구
정경열(Kyung-yul Chung),서현수(Hyun-soo Seo),강성원(Sung-won Kang),임재우(Jae-woo Lim),심상용(Sang-yong Sim),김용환(Yong-hwan Kim),김용식(Yong-sik Kim),박창대(Chang-dae Park),임병주(Byung-ju Lim),이후락(Hoo-rock Lee) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.10
Recently, developments in the solar technology with Ⅲ-Ⅴ concentrating photovoltaic cell technology has much attention in the market. In this paper, we propose the concentrating photovoltaic module packaging method with fresnel lens and verify test for performance by using the 2-axis solar tracker for concentrating photovoltaic system in the out-door.