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주정훈(Ju, Jung-Hoon),박진철(Park, Jin-Chul),전영훈(Jeon, Young-Hoon),김동영(Kim, Dong-Young) 대한건축학회 2015 대한건축학회논문집 Vol.31 No.6
In this study, the usage status and satisfaction of the ventilation system installed in apartment houses of Seoul were investigated for 200 households. The summary of that study result is shown as follows: In the survey, approximately more than 20% of the residents in apartment houses were not aware of the installation of the ventilation system. Meanwhile, even in the residents who were aware that the ventilation system is installed, approximately more than 35% answered that they were not using it at all. The reason was their ignorance about how to use the ventilation system. Also, it showed that approximately more than 75% of the residents didn"t perform maintenance of the ventilation system such as cleaning, etc. Besides, in order to enhance the ventilation system in apartment houses, preparation of manuals about usage, and cleaning method (37.58%), and publicity and instruction on the ventilation system in moving in (29.3%) are necessary. On the analysis of satisfaction on the ventilation system, age, gender, period of residence, and number of residence were found to be irrelevant to the characteristics of the respondents. Also, the respondents answered that the difference in each ventilation system such as ceiling & floor type was irrelevant to the satisfaction. For the ventilation system improvement criteria, maintenance (filtering and cleaning, 46.88%) and cleanliness (21.88%) were found to be priority.
그린리모델링 에너지저감 효과 예측 Tool 구축에 관한 기초연구
주정훈(Ju, Jung-Hoon),이건호(Lee, Keon-Ho),구보경(Koo, Bo-Koung),김기태(Kim, Ki-Tae) 대한건축학회 2018 大韓建築學會論文集 : 構造系 Vol.34 No.8
The purpose of this study was to study on the estimation of green remodeling energy reduction tool in building construction. Green Remodeling Decision System that can predict the energy reduction effect in green remodeling is developed as a tool for simple remodeling of green remodeling considering users’ convenience, so that it can quickly and comprehensively determine power peak load reduction factor technology. A preliminary simulation result of a short preliminary remodeling evaluation is DB. It will be developed as a tool that can be easily accessed by users such as web and apps.
그린리모델링 에너지저감 효과 예측 Tool 구축에 관한 연구
주정훈(Ju, Jung-Hoon),이건호(Lee, Keon-Ho),구보경(Koo, Bo-Kyoung),김기태(Kim, Ki-Tae) 대한건축학회 2017 대한건축학회 학술발표대회 논문집 Vol.37 No.1
The purpose of this study was to study on the estimation of green remodeling energy reduction tool in building construction. Green Remodeling Decision System that can predict the energy reduction effect in green remodeling is developed as a tool for simple remodeling of green remodeling considering users" convenience, so that it can quickly and comprehensively determine power peak load reduction factor technology. A preliminary simulation result of a short preliminary remodeling evaluation is DB. It will be developed as a tool that can be easily accessed by users such as web and apps.
직류와 양극성 펄스직류에 의한 스퍼터링시 타겟 표면의 온도 분포와 그 영향
양원균,주정훈,김영우,이봉주,Yang, Won-Kyun,Joo, Jung-Hoon,Kim, Young-Woo,Lee, Bong-Ju 한국진공학회 2010 Applied Science and Convergence Technology Vol.19 No.1
We measured the temperature of target surface inducing by various physical phenomenon on magnetron sputtering target and confirmed the possibilities if the temperature distribution could affect plasma and deposited thin film. The target of magnetron sputtering has two types: round type and rectangular type. In a rectangular target, the concentrated discharge area by corner effect by magnetic field and non-uniform erosion of target are generated. And we found the generation of non-uniform temperature distribution on the target surface from this. This area was $10{\sim}20^{\circ}C$ higher than non-sputtering area. And if particles are generated during sputtering process, they were $20^{\circ}C$ higher than the area where is higher than non-sputtering area. These effects result in non-uniformity of thin films, crack of ceramic target, and shortening target life by non-uniform erosion. 마그네트론 타겟에서 일어나는 다양한 물리적 현상에 의한 결과로 인해 발생하는 타겟 표면의 온도를 측정함으로써 그 분포가 플라즈마, 혹은 증착되는 박막에 영향을 줄 수 있는 가능성을 분석하였다. 마그네트론 스퍼터링의 타겟은 크게 원형 타겟과 사각 타겟으로 구분되는데, 사각 타겟에서는 자기장에 의한 corner effect 등에 의해 전자 집중 방전 영역이 발생하고 그것에 의해 타겟 표면에서 불균일한 온도분포가 생성됨을 확인했다. 국부적으로 온도가 높게 올라가는 지역은 비스퍼터링 지역에 비해 $10{\sim}20^{\circ}C$ 정도 높았으며, 스퍼터링 공정 시 문제점 중에 하나인 particle이 발생하면 그 부분에서 온도가 $20^{\circ}C$ 정도 더 상승함을 알 수 있었다. 이런 영향은 증착되는 박막의 균일도에도 적지 않은 영향을 주었으며 세라믹 타겟의 경우, 균열의 원인이 될 수 있고, 불균일한 타겟 침식으로 타겟의 수명을 단축시키는 문제를 유발하기도 한다.
조성우,주정훈,류성현,류광선,Cho, Sung-Woo,Ju, Jeong-Hun,Ryu, Seong-Hyeon,Ryu, Kawng-Sun 한국전기화학회 2010 한국전기화학회지 Vol.13 No.4
$LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$의 리튬이온 이차전지 양극 물질로의 특성을 연구하기 위해서 단순 연소합성법을 이용하여 합성했다. 합성된 물질의 구조적 특징을 분석하기 위하여 X-선 회절분석(XRD)과 주사전자현미경 (FE-SEM)을 측정하였다. X-선 회절분석을 통하여 합성된 $LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$시료가 육방정계 층상구조가 형성된 것을 확인하였다. FE-SEM을 통해 측정한 결과 $LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$ 입자는 일정한 형태를 가지지 않았으며 크기는 대략 100~300 nm의 크기임을 확인할 수 있었다. 그리고 전기화학적 특성을 측정하기 위하여 충 방전 용량 측정과 CV(Cyclic Voltammetry)를 측정하였다. 2.8 V에서 4.3 V까지 충 방전 용량을 측정한 결과 ~162 mAh/g의 초기 방전 용량을 가졌다. $LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$ active material was prepared by simple-combustion method and investigated as the cathode material for li-ion battery. The structural characterization was analyzed by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM), respectively. The XRD patterns of $LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$ sample was indicated a phase of layered hexagonal structure. The size of particles has not uniform diameters ranging from 100 to 300 nm. The electrochemical performance of the $LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$ was measured by Cyclic Voltammetry and galvanostatics. The $LiNi_{0.5}Mn_{0.3}Co_{0.2}O_2$ shows the discharge capacity of ~162 mAh/g in the range of 2.8 to 4.3 V at the first cycle.
Polyimide 기판을 이용한 ZnO:Al 박막 특성에 관한 연구
이동진,이재형,주정훈,이종인,정학기,정동수,송준태,Lee, Dong-Jin,Lee, Jae-Hyeong,Ju, Jung-Hun,Lee, Jong-In,Jung, Hak-Kee,Jung, Dong-Su,Song, Jun-Tae 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.8
Aluminuim doped zinc oxide(ZnO:AL)Films have been prepared on Polyimide(PI) and Coming 7059 glass substrates by r.f. magnetron sputtering method. The structural of the ZnO:Al films were studied in accordance with various deposition R.F power and working pressure by XRD, SEM. And The electrical and optical properties of ZnO:Al films were characterized by Hall effect and UN visible spectrophotometer measurements, ZnO:Al films had were hexagonal wurtzite structure and dominant c-axis orientation. The R.f power and working pressure for optimum condition to fabricate the transparent conductive films using a PI substrate were 2 mTorr and 100W, respectively. The resistivity of the ZnO:Al films prepared under this condition were $9.6{\times}10^{-4}{\Omega}cm$. The optical transmittance of 400nm thick films at 550nm is ${\sim}85 %$.
초고층 공동주택의 배기겸용 소형풍력발전 적용에 관한 연구
박정하(Jung Ha Park),주정훈(Jung Hoon Ju),박진철(Jin Chul Park) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.11
The goal of this study was to test the application of a wind power system with combined exhaust to a super high-rise apartment, and the research results can be summarized as follows. 1) The proposed location of the applied wind power system with combined exhaust in the study was a rooftop exhaust pipe from a dining room and bathroom of a super high-rise apartment. At that time, the size of the module for concentrating wind was 500mm in diameter and 320mm in height (upper diameter was 400mm with Venturi effect inducement). Blade was combined Savonius style and Darius style, able to rotate. 2) In the results of measuring the generation quantity for 14 days by installing the wind power system with combined exhaust at an apartment rooftop with 35m height, the case 3 system (outside air + exhaust wind + wind concentrating device) proposed in the study appeared to have a higher generation quantity than other systems. Specifically, even when there was a low outside wind velocity value, the electrical energy appeared to be high, confirming the exhaust wind concentration effect.
그린리모델링 실증 시범사업을 통한 프로세스의 전 과정에 대한 검토
정진우(Jeong Jin-Woo),주정훈(Ju Jung-Hoon),이건호(Lee Keon-Ho) 한국태양에너지학회 2018 한국태양에너지학회 논문집 Vol.38 No.3
The purpose of this study is to review all phases of the pilot project through the implementation of the Green Remodeling process. The Green Remodeling process was developed to facilitate anyone’s ease of use. The Green Remodeling process consists of five phases : project, plan, design, construction, operation and maintenance. Each stage simulation was performed and the energy saving was predicted. Architects can easily obtain energy information of a building. In this study, we propose a green remodeling proposal plan through pilot project. Ultimately, the spread of green remodeling will greatly contribute to achieving the goal of reducing greenhouse gas emissions.