• 한국태양에너지학회 논문집
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• 제33권3호
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• pp.67-74
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• 2013

These days, although thermal energy is decreasing, electric energy is increasing in building. Also, it is very important to research and distribute BIPV(Building Integrated photovoltaic) because our society consider electricity more significant than other energy in building. Therefore, in this paper, our research team analyzed difference between BIPV yield and building energy consumption through experimental research. As a result, yearly building energy consumption was 104,602.4kWh and BIPV yield was 105,267kWh. And then, totally counterbalanced time took up 26%, reduced electric load time took up 16%. In other words, peak load could be reduced up to 42% by BIPV. As a result, yearly building energy consumption was 104,602.4kWh and BIPV yield was 105,267kWh. And then, totally counterbalanced time took up 26%, reduced electric load time took up 16%. In other words, peak load could be reduced up to 42% by BIPV.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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• pp.60.1-60.1
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• 2010

공동주택에서 태양광발전(PV)을 통한 세대 전기에너지 이용은 모듈 설치 면적의 제약으로 인해 전 세대를 대상으로 활용하기에 현실적으로 어려움이 있다. 특히 남향이나 남동, 남서향으로 위치한 거실 창호를 활용하는 경우에도 결정질 실리콘(crystalline silicon) 태양전지 셀로 인한 실내 음영문제 등으로 건물통합형 태양광발전(BIPV) 시스템의 가시성을 확보하는데 한계가 있다. 따라서 이런 문제점을 극복하고자 투광형 비정질실리콘(amorphous silicon) 태양전지를 이용한 발코니창호/커튼월 BIPV 시스템을 구축하고, 테스트베드를 통한 적용성 평가 검증을 수행하였다. 테스트베드는 KCC 중앙연구소 1층 외부 측창에 결정질 BIPV 모듈(A2PEAK 사(社), 최대 출력 210 Wp, W 2,000 mm ${\times}$ H 1,066 mm)과 10% 및 30% 투광형 비정질 BIPV 모듈(Sharp 사(社) See Through type, 최대 출력 135 Wp/123 Wp, W 1,930 mm ${\times}$ H 1,180 mm)을 각각 설치(남서 $30^{\circ}$, 수직 $90^{\circ}$)하여, 2009년 5월에서 8월 사이 4개월에 걸친 모니터링을 통해 실제 발전량 데이터를 확보, 시스템에 대한 분석을 진행하였다. 분석 결과, 설치용량당 일평균 발전량은 결정질형이 1.46 kWh/kWp, 10% 투광형은 1.10 kWh/kWp, 30% 투광형은 0.73 kWh/kWp을 나타내었다. 10% 투광형과 30% 투광형의 모듈 성능 차이는 크지 않으나 발전량에 있어서는 큰 차이를 보였고, 10% 투광형의 설치용량당 일평균 발전량은 경정질형의 75.2% 수준으로 투광형 비정질실리콘 BIPV 시스템의 창호 적용 가능성을 확인하였다. 특히 세대 거실 창호를 통한 가시성 확보는 기존 결정질 BIPV 창호의 단점을 개선하였다. 건자재 일체화로 구축된 가시성확보 BIPV시스템 창호는 단위 세대별 적용이 쉽고, 공동주택에서 PV 시스템의 설치면적을 극대화시키므로 향후 Zero Energy 공동주택 구축에도 활용성이 클 것으로 기대된다.

• KIEAE Journal
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• 제15권4호
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• pp.85-90
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• 2015

Purpose: In design and planning Building Integrated Photovoltaic(BIPV) system can reduce cost by replacing building facade as construction material such as roofs, outer walls and windows as well as generating electricity. BIPV system should be applied at the early stage of architectural design. However, it is hard to decide whether using BIPV system or not for architects and builders who are not professional at BIPV system because performance of system is considerably influenced by types of module, installation position, installation methods and so on. It is also hard for experts because commercialized analytical program of photovoltaic systems is too complicated to use and domestic meteorological data is limited to partial areas. Therefore, we need evaluation program of BIPV system which can easily but accurately interpret generating performance and evaluate validity of BIPV system at the early stage of architectural design even for inexpert. Method: In this study, we collected meteorological data of domestic major region and analyzed generation characteristic of BIPV system by using PVsyst(commercialized software) in accordance with regions, types of solar module, place and methods of installation and so on. Based on this data, we developed performance evaluation program of BIPV system named BIPV-Pro, through multiple regression analysis and evaluated its validity. Result: When comparing predictive value of annual average PR and annual electricity production of BIPV-Pro an that of PVsyst, each of root mean square error was 0.01897 and 123.9.

• KIEAE Journal
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• 제14권1호
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• pp.67-74
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• 2014

There have distinctly been no the installation criteria and maintenance management of BIPV systems, although the BIPV market is consistently going on increasing. In addition, consideration of the BIPV generation quantity which has been installed at several diverse places is currently almost behind within region in Korea. Therefore, the main aim of this study is to evaluate the BIPV generation and to be base data of reducing rate depending on regional installation angles using PVpro which was verified by measured data. Various conditions were an angle of inclination and azimuth under six major cities: Seoul, Daejeon, Daegu, Busan, Gwangju, Jeju-si for the BIPV system generation analysis. As the results, Seoul showed the lowest BIPV generation: 1,054kWh/kWp.year, and Jeju-si have 5percent more generation: 1,108.0kWh/kWp.year than Seoul on horizontal plane. Gwangju and Daejeon turned out to have similar generation of result, and Busan showed the highest generation: 1,193.5kWh/kWp.year, which was increased by over 13percent from Seoul on horizontal plane. Another result, decreasing rate of BIPV generation depending on regional included angle indicate that the best position was located on azimuth: $0^{\circ}$(The south side) following the horizontal position(an angle of inclination: $30^{\circ}$). And the direction on a south vertical position(azimuth: $0^{\circ}$, an angle of inclination: $90^{\circ}$) then turned out reducing rate about 40percent compared with the best one. Therefore, these results would be used to identify the installation angle of the BIPV module as an appropriate position.

• 한국산학기술학회논문지
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• 제19권10호
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• pp.578-589
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• 2018

건물일체형 태양광 발전(BIPV) 시스템은 건축물에 태양광 발전시스템이 통합되어 건축물 기능과 태양광 발전 기능을 동시에 수행하는 대표적인 통합시스템이다. BIPV 시스템은 건축물 외피의 기능을 수행하면서 동시에 태양광 발전기능을 수행할 수 있다는 장점이 있지만, 건축물 설계 프로세스의 개념설계 단계에서부터 태양광 발전기능이 통합되어야 하고, 동시에 전력발전을 극대화할 수 있는 태양광 발전시스템의 설계가 필요하다. 이러한 요구사항에 대한 선행연구로서, 건축설계모델기반 BIPV 설계 프로세스에 관한 연구와 태양광 전력발전 성능 향상을 위한 모델기반 컴퓨터 시뮬레이션 결과들이 발표되었다. 그러나, BIPV 시스템의 요구사항이 명확하게 식별되어 체계적으로 반영되지 못하였고, 또한 시스템의 전력발전설계가 개념설계 단계에서부터 반영될 수 있도록 요구사항에 대한 시스템 아키텍쳐, 구조 및 거동이 정의되지 못하였으며, 그리고 BIPV 시스템의 전력발전 설계를 검증할 수 있는 모델이 제시되지 못하였다. 이러한 문제 들을 해결하기 위하여 본 연구에서는 BIPV 시스템의 요구사항을 체계적으로 모델링 하고 이를 기반으로 체계적인 전력발전 설계 방법을 연구하기 위하여 시스템 모델링 표준 언어인 SysML을 사용하여 전체시스템 관점에서 통합적이고 일관적인 설계 방법을 제시하였다. 구체적으로, 먼저 대상시스템(BIPV)에 대한 관련 표준, 사용자 및 설계자 등을 포함하는 이해당사자 들로부터의 요구사항을 식별하였다. 그리고 나서 domain model을 기반으로 BIPV 시스템 수준의 설계요구사항을 도출하였으며, 시스템 요구사항을 바탕으로 대상시스템의 SysML기반 기능 및 물리 아키텍쳐를 생성하였다. 또한 SysML 구조 모델과 거동 모델에 대한 설계를 구체화 하여 시스템의 구성 요소들 사이의 역할과 관계를 정의하였다. 마지막으로, 시뮬레이션이 가능한 SysML 모델(Parametric diagram)을 통하여 BIPV 시스템의 전력발전 성능을 평가하였다. 본 연구에서의 SysML 시스템 모델에 향후 건축물에 적용해야 하는 조건들을 반영하여 시스템 모델을 보강한다면 BIPV 시스템에서 전력발전을 통합적으로 연구할 수 있는 기회가 될 것이다.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2008년도 추계학술발표대회 논문집
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• pp.251-256
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• 2008

Nowaday, The Sustainable Development about global environment is the most important subject. In urban environment, a variety of the nature energy utilization such as the solar energy are the most efficient solution to solve this issue. One of these efficient solutions, a photovoltaic system using sunlight has been introduced to the building with an advantage such as cost-effective, safe for using and good for environment friendly in light with energy utilization. The BIPV is one of the most interesting and promisingly possibilities of an active use of solar energy at the building. Therefore the goal of this study is to get securing the application information of BIPV as finished envelope. The purpose of this study is to investigate the current performance measurement methods of BIPV module and to measure the performance of BIPV module by mock-up tests.

• 국제초고층학회논문집
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• 제6권4호
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• pp.307-313
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• 2017

This paper outlines the processes and strategies studied and selected by the team during the design stages of the project for the incorporation of BIPV into the tower's façade. The goal was to create a system that helps reduce internal heating and cooling loads while collecting energy through photovoltaic panels located throughout the building. The process used to develop this façade system can be broken down into three stages. 1. Concept: BIPV as design catalyst for a high-rise building. 2. Optimization: Balancing BIPV and Human comfort. 3. Integration: Incorporating BIPV into a custom curtain wall design. The FKI Project clearly illustrates the evolution building enclosures from simple wall systems to high performance integrated architectural and engineering design solutions. This design process and execution of this project represent the design philosophy of our firm.

• 한국태양에너지학회 논문집
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• 제38권4호
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• pp.33-42
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• 2018

In the application of the BIPV system, it is expected that the workability is lowered due to the difficulty in securing the space for wiring in the frame and the performance of the frame due to the wiring hole processing is lowered. Therefore, In this study, we propose a method to improve the wiring of the inner space of the BIPV frame, and through the simulation evaluation process, the thermal and condensation performance are secured by complementing the problems caused by the hole machining, and the time and effort required for BIPV construction are reduced. For this purpose, a wiring treatment method using a flange insertion tube was proposed, and the thermal and condensation performance was evaluated through simulation analysis.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2008년도 춘계학술발표대회 논문집
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• pp.196-202
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• 2008

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 Design element for architecture effectively.

• 한국태양에너지학회 논문집
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• 제35권4호
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• pp.57-66
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• 2015

BIPV system not only produces electricity at building, but also acts as a material for building envelope. Thus, it can increase the economical efficiency of PV system by saving the cost for building materials. Bifacial solar cell can convert solar energy to electrical energy from both sides of the cell. In addition, it is designed as 3 busbar layout which is the same with ordinary mono-facial solar cells. Therefore, many of the module manufacturers can easily use the bifacial solar cells without changing their manufacturing equipments. Moreover, bifacial PV system has much potential in building application by utilizing glass-to-glass structure of PV module. However, the electrical generation of the bifacial PV module depends on the characteristics of the building surface which faces the module, as well as outdoor environment. Therefore, in order to apply the bifacial PV module to building envelope as BIPV system, its power generation characteristics are carefully evaluated. For this purpose this study focused on the electrical performance of the bifacial BIPV system through the comparative outdoor experiments. As a result, the power generation performance of the bifacial BIPV system was improved by up to 21% compared to that of the monofacial BIPV system. Therefore, it is claimed that the bifacial BIPV system can replace the conventional BIPV system to improve the PV power generation in buildings.