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마이크로 구조물 반사판의 광 회수를 통한 고효율 염료감응형 태양전지 모듈개발
신인동(In-Dong Shin),김용우(Yong-Woo Kim),최수창(Soo-Chang Choi),이득우(Deug-Woo Lee) 한국기계가공학회 2009 한국기계가공학회 춘추계학술대회 논문집 Vol.2009 No.6
Recently, The Solar Cell Energy is presently promising because of Oil Inflation, fuel exhaustion, global warming and space development. Many advanced countries rapidly develop the solar cell energy under a nation enterprise. Particularly, Dye-sensitized solar cell(DSC) that is the 3rd generation solar cell has low-cost of manufacture about 1/3~1/5 times compared with the silicon solar cell. Accordingly, the DSC is constantly researched globally. In this paper, we have studied a reflector recovering the loss light for improvement conversion efficiency of DSC. The reflector angle was determined by optical analysis program. Micro pyramid patterns with the 112.6° were processed using the ultra precision shaping machine in order to maximize the conversion efficiency due to increasing light distance. In addition, a comparative study carried out about the conversion efficiency.
마이크로 구조물 반사판의 광 회수를 통한 고효율 염료감응형 태양전지 모듈개발
신인동(In-Dong Shin),김용우(Yong-Woo Kim),최수창(Soo-Chang Choi),이득우(Deug-Woo Lee) 한국기계가공학회 2009 한국기계가공학회 춘추계학술대회 논문집 Vol.2009 No.6월
Recently, The Solar Cell Energy is presently promising because of Oil Inflation, fuel exhaustion, global warming and space development. Many advanced countries rapidly develop the solar cell energy under a nation enterprise. Particularly, Dye-sensitized solar cell(DSC) that is the 3rd generation solar cell has low-cost of manufacture about 1/3~1/5 times compared with the silicon solar cell. Accordingly, the DSC is constantly researched globally. In this paper, we have studied a reflector recovering the loss light for improvement conversion efficiency of DSC. The reflector angle was determined by optical analysis program. Micro pyramid patterns with the 112.6° were processed using the ultra precision shaping machine in order to maximize the conversion efficiency due to increasing light distance. In addition, a comparative study carried out about the conversion efficiency.
이승준,신인동,최수창,김용우,이종렬,이득우,Lee, Seung-Jun,Shin, In-Dong,Cha, Sao-Chang,Kim, Yong-Woo,Lee, Jong-Ryul,Lee, Deug-Woo 한국생산제조학회 2010 한국생산제조학회지 Vol.10 No.6
The development of high-speed spindle have been studied extensively for micro machining in advanced industrial countries. The research of miniaturized high-speed air spindle is important part which needs for the micro machining process of high quality. So, This study was to carry out results about design characteristics of miniaturized high-speed air spindle. We had designed 4type turbines and shaft. They were simulated in use the computer simulation programs. We made them as products. They measured RPM (revolutions per minute). As a result of experiments, there was a contrast among 4type Turbines. it reached 384,000rpm in 4.5bar of air pressure. And, We tried to compare the results of measurement whit the results of computer simulation.
초고속 RPM변화에 따른 니켈-크롬 합금의 밀링가공 특성 평가
이승준(Seung-Jun Lee),최수창(Soo-Chang Choi),김진근(Jin-Geun Kim),신인동(In-Dong Shin),이득우(Deug-Woo Lee),이종열(Jong-Ryul Lee) 한국기계가공학회 2010 한국기계가공학회지 Vol.9 No.2
According to the high demand of hybrid components, the hybrid materials development and processing technology were increased in the industry field. Although hybrid materials have various machining technologies, the research about them has rarely been proceed. This study is to carry out results about design technology of miniaturized high-speed air spindle and machining characteristics of hybrid materials using that. We studied machining characteristics in Nickel-Chrome alloy(Ni-Cr) according to change rotating speed using miniaturized high-speed air spindle. As the following results, the change of surface shape and roughness was investigated as the processing conditions such as rotating speed of miniaturized high-speed air spindle.
이승준(Seung Jun Lee),최수창(Soo Chang Choi),김진근(Jin Geun Kim),신인동(In Dong Shin),이종열(Jong Ryul Lee),이득우(Deug woo Lee) 한국생산제조학회 2009 한국공작기계학회 추계학술대회논문집 Vol.2009 No.-
The development of high-speed spindle has been studied extensively for micro machining in advanced industrial countries. The study of miniaturized high-speed air spindle appears to have attached great importance to high quality micro machining. In this regard, this study is to carry out results about design characteristics of miniaturized high-speed air spindle. And, we manufactured that is turbine of 4type designs. As a result of RPM(revolutions per minute) experiment, there was a contrast of design characteristics between 4type rotors. And, it reached 384,000rpm by 4.5bar in air pressure.