사례연구를 통한 DSC에 의한 BIPV 가능성 분석 연구

이응직,Lee, Eung-Jik 한국교육녹색환경연구원 2017 교육·녹색환경연구 Vol.16 No.2

건물에너지 자립과 온실가스 배출 저감에 BIPV 역할이 증대되는 가운데 기존 결정계의 한계를 극복할 수 있는 DSC의 적용이 주목받고 있다. 특히 DSC의 다양한 색상과 투명성 그리고 방향에 무관한 작동성은 모듈의 다기능 복합재로서 BIPV폭을 크게 확장시킨다. 이에 사례조사 분석을 통해 DSC BIPV의 가능성을 살펴보고 그 활용성을 조망한다. 국 내외 각 3건씩의 사례 조사 분석을 통해 나타난 대부분의 DSC BIPV는 주로 창호와 차양 장치로 구현되고 있고 이는 DSC의 특성과 무관치 않다. 즉, 다양한 색상과 투명성의 모듈은 건물 외피디자인과 에너지 획득에 커다란 전환점을 마련하고 있는 것으로 파악된다. 한편으로는 적용모듈의 색상으로 인한 눈의 자극성이 존재하여 BIPV 창호적용에는 건물 및 실의 용도에 따른 색감 고려가 필수적이고 건물외피 적용을 위한 유연한 모듈개발의 경우 DSC BIPV는 상당히 기대되는 확산성을 가질 것이다. The various colors and transparency of DSC and operability unrelated with directions greatly expand the use of BIPV, as a multi-functional composite of module. Therefore the possibility of DSC BIPV is examined by the case study and the analysis and then its applicability is examined. Most of the DSC BIPVs, which are found through a total of six case studies and analyzes in Korea and abroad, are mainly implemented with window glass and shading devices. This is related to the DSC transparency property. Improvements are due to the irritation of the eye due to the color of the red module. Therefore, it is important to take into account the color of the BIPV window depending on the use of the building and the room. Meanwhile, some colors of application model may stimulate eyes and such colors should be considered by use of buildings and rooms in the application of BIPV window. DSC BIPV has prospective diffusibility with the development of flexible module for the application of building surface.

평지붕 설치 태양광시스템의 표면형태 조사 · 분석

이응직(Lee Eung-Jik) 한국태양에너지학회 2016 한국태양에너지학회 논문집 Vol.36 No.4

Domestic photovoltaic system for roof-top is installed towards the south at an angle of 20 to 35 degrees and the shape of PV array is divided into two kinds; a plane shape and a curved shape. This paper aims to understand an actual condition of PV facility and strengths and weaknesses of support structure production and installation and to consider the best PV surface shape by analyzing theoretical logics of these two surface shapes and architectural perspective-based realistic case studies. This study targeted 98 facilities including common houses, public institutions and education institutions. In common houses, all of 59 PV facilities have a plane surface. In public institutions, 7 of 15 PV facilities have a curved array surface and 8 PV facilities have a plane surface. In education institutions, also, 14 of 24 PV facilities have a plane array surface and 10 PV facilities have a curved surface. Most of 98 facilities have a flat roof supporting shape. However, it was found that the curved shape wasn"t positive for PV generation due to the change of radial density and it was at least 10 % more expensive to produce its structure. Also, domestic general large single-plate PV facilities have problems of harmony with buildings and wind load. Therefore, it is considered that for fixed-type roof-top PV, a plane PV array shape is good for optimum generation and economic efficiency and a parallel array structure on the roof surface is favorable to wind load and snow load without being a hindrance to the building facade.

An Empirical Study on the DSC Module for Application to Building

Lee Ki-Won(이기원),Lee Eung-Jik(이응직) 한국태양에너지학회 2016 한국태양에너지학회 학술대회논문집 Vol.2016 No.10

PV의 건축물 적용기법에 관한 연구

이응직(E.J.Lee),김회서(H.S.Kim) 한국태양에너지학회 2002 한국태양에너지학회 논문집 Vol.22 No.2

This study is a study on the building integrated method of Photovoltaic. It was analyzed into a basic installation condition and an integrated form in this study. And it was confirmed through the 3D simulation & drawing work of an integrated situation to the real domestic building. The Photovoltaic installation of the country to an optimal efficiency for the year must be installed to the due south with an angle of thirty degrees. And also a module spacing must be more than doubled from the bottom to the top of module to prevent from efficiency falling by a shadow of photovoltaic module in a roof setting of flat roof. If Photovoltaic module is an adequate material that is a basic requirement as a building's finishing material, it's not only an efficiency of alternation with an existing finishing material but also a building's design element.

옥상녹화와 비 옥상녹화 표면의 온도변화 상관관계 고찰

이응직(Lee, Eung-Jik),김준희(Kim, Jun-Hui) 한국태양에너지학회 2012 한국태양에너지학회 논문집 Vol.32 No.6

With rapid modernization and industrialization, many urban areas are becoming overcrowded at arapid pace and such urban ecological problems as heat island effect are becoming serious due to the reduce dgreen zones resulted from the indiscriminate development. To solve this problem, ecological park, constructed wetlands, and greening on the elevation, balcony, and roof of a building that have the structure and function very close to the state of nature are currently being promoted at the urban or regional level. Especially green roof will be able to not only provide the center of a city with a significant portion of green area but also help to relive heat island effect and improve micro climate by preventing concrete of a building from absorbing heat. According to a recent study, the temperature of green roof in the summer season shows a lower temperature than the outdoor temperature, but inversely the concrete surface shows a higher temperature. Accordingly, this study measured the surface temperature of buildings with green roof in Daejeon area in order to determine how the green roof system would have an impact on the distribution of surface temperature and did a comparative analysis of the distribution of the surface temperature of green roof vs non-green roof based on these theoretical considerations. As a result, it was found that the surface temperature of green roof was lower by 4∼7℃ than that of non-green roof. This is expected to contribute to the mitigation of urban heat island effects.

건물을 위한 신ㆍ재생에너지 이용연구

이응직(Lee Eung-Jik) 한국건축친환경설비학회 2007 한국건축친환경설비학회 논문집 Vol.1 No.3

Confronting global climatic changes in connection with burnable fossil fuels, renewable sources of energy offer an interesting prospect of the environmental friendly power supply. Photovoltaic (PV), a technology which directly purifies and transforms solar radiation to electricity, also belongs to this category. Through the photovoltaic integration of buildings, this technology becomes architecturally valuable and it is refered as BIPV (Building Integrated Photovoltaic). In this case the Photovoltaic modules replace conventional construction units thereby possessing not only the ability to generate electricity but also architectural function. Especially, PV modules successfully combine with sunning protection elements for it can have optimal function if the sunning protection is facing the sun. In this study, we will generally look at the contents concerning the new renewable energy and analyze the generation of sunlight in buildings, implicating its possible usage in reality.

BIPV용 컬러형 태양전지 이용현황 분석

이응직(Eung Jik Lee) 한국태양에너지학회 2019 한국태양에너지학회 학술대회논문집 Vol.2019 No.10

컬러형 BIPV 디자인 현황 및 사례 고찰 -스위스 지역을 중심으로

이응직(Lee Eung-Jik) 한국태양에너지학회 2021 한국태양에너지학회 논문집 Vol.41 No.1

Reducing CO₂ emissions and using renewable energy in buildings is a new trend in global architecture. BIPV is establishing itself as an architectural refinement of new corresponding technologies, and in particular, an architectural design solution is being sought for color-type BIPV. Therefore, this study aims to contribute to the extension and application of a BIPV design by capturing the realistic level and current status of a color type BIPV, investigate and analyze advanced cases, and infer the characteristics of the BIPV. A common feature resulting from this is the implementation of different colors by processing the front glass of the module on the basis of a highly efficient monocrystalline module. In this case, the existing PV color and texture are not displayed. This means there is no problem with the design harmonizing with the architecture itself or with the urban esthetics. The SSG point fixation is applied to all modules such that the outside surface appears to be homogeneous and smart, whereas the ventilation on the back of the module prevents a decrease in efficiency.

A Study on the Ways to Apply DSC of Opening Windows and Non-Opening Windows

Lee Ki-Won(이기원),Lee Eung-Jik(이응직) 한국태양에너지학회 2014 한국태양에너지학회 학술대회논문집 Vol.2014 No.11

BIPV 시스템에서의 모듈 종류에 따른 건축적 특성 연구

이응직(Lee Eung-Jik),이충식(Lee Chung-Sik) 한국태양에너지학회 2008 한국태양에너지학회 학술대회논문집 Vol.- No.-

Effective climate protection is a most important tasks of our time. The BIPV is one of the most interesting and promisingly possibilities of an active use of solar energy at the building. In this study it was analyzed by the case study the function of the requirement of the BIPV-module as building material and this architectural characteristic according to the 'kind of the module. Therefore the goal of this study is to get securing the application information of BIPV as windowpane. BIPV modules are manufactured in the form of G/G. in the case of the Crystal type the Transparent and the light Transmission is to be adjusted by the spacer attitude of the cell. Although this type could not be optimal for light effect of indoors because of the inequality of shade, the moving shade play makes a dramatic Roomimage by the run of sun. The application of this type would be for canopy, window or roof in the corridor or resounds. With amorphous the type it is to be manufactured simply largely laminar, and thus that will shorten building process. There is a relatively good economy to use and to the window system easily. After the production technology is easy the transparency of the modules to adjust, and the module shows to a high degree constant characteristics of light permeability and transparency. Without mottle of module shade is good the use for the window or roof glazing of office, library, classroom, etc. to adapt. The BIPV modules took generally speaking a function as building material to the daylight use, shading, isolation and also to the sight. That means that BIPV modules have as multifunctional system to sustainable architecture good successes and they are at the same time as Designelement for architecture effectively.