• Proceedings of the KIPE Conference
• /
• 2018.11a
• /
• pp.229-230
• /
• 2018

본 논문은 태양광 기반의 '독립형 에너지 하우스'의 전체 전력 시스템과 태양광 외장재 모듈의 에너지를 효율적으로 최대 수급하기 위한 BIPV(Building Integrated PV)용 Optimizer의 개발에 대해 기술한다.

• 한국태양에너지학회:학술대회논문집
• /
• 2008.11a
• /
• pp.57-62
• /
• 2008

Building Integrated PV(BIPV) is one of the best fascinating PV application technologies. To apply PV module in building, various factors should be reflected such as installation position, shading, temperature, and so on. Especially the installation condition should be considered, for the generation performance of PV module is changed or the generation loss is appeared according to installation position, method, and etc. This study investigates variation of electrical characteristics of a PV module according to the change of irradiance and temperature. From this experimental study, we confirmed that the irradiance, the temperature variation and the generation performance of a PV module were appeared differently according seasonal variation. Actually the PV module installed in building facade showed high-generation performance in winter.

• 한국신재생에너지학회:학술대회논문집
• /
• 2008.10a
• /
• pp.105-106
• /
• 2008

In korea, PV business has been growing fast since 2000. There are many ways to build PV System. Among them, BIPV(Building Integrated Photovoltaic) System using PV Modules as external wall has been carried out research on and invested much. Thus I will suggest another way to apply the BIPV System. This System is Eco System designed to consume little energy working the blind by the power that the BIPV System generates. I will show you how to make and apply this BIPV System.

• Advances in Energy Research
• /
• v.8 no.1
• /
• pp.1-19
• /
• 2022

The application of Photovoltaic (PV) power in the building sector, is expanding as part of the ongoing energy transition into renewables. The article addresses the question of sustainability of energy generated from PVs through an environmental assessment of a building-integrated PV system (BIPV) connected to the grid through net metering. Employing retrospective life cycle analysis (LCA), with the CCaLC2 software and ecoinvent data, the article shows that the carrying structure and other balance of system (BOS) components are responsible for a three times higher energy payback time than the literature average. However, total environmental impact can be lowered through reuse or reinstallation of PVs on the same building structure after the 30-year interval. Further ways to improve environmental efficiency include identifying the most polluting materials for each LCA parameter. The results of this study are of interest to researchers and producers of PVs and organizations investing and promoting decentralized power production through PVs.

• New & Renewable Energy
• /
• v.4 no.4
• /
• pp.10-16
• /
• 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. Recently, many of the apartment housings are built in domestic country. The apartment buildings have been constructed since early of 1970's. now apartment is taking over 50% out of entire housing in korea. The apartment housing applying to a photovoltaic system has been extensively studied in the foreign country but our county runs short. So, It was necessary to technical development of PV application which is suitable in Korean house culture. The objective of this study is to develop the building integrated PV application method for apartment building.

• The Transactions of the Korean Institute of Power Electronics
• /
• v.16 no.2
• /
• pp.173-181
• /
• 2011

This paper proposes photovoltaic thermal hybrid module to get the electrical and thermal performance of building integrated photovoltaic(BIPV) system. BIPV system is decreased the system efficiency because output of PV is decreased by the thermal rising on generating. In order to improve the efficiency of BIPV module, water cooling system is applied and generated thermal is used the warm water system. Water cooling system uses the flux control algorithm considering water temperature and power loss. Electrical and thermal performance of proposed photovoltaic thermal hybrid module is confirmed through the actual experiment and herby proved the valid of this paper.

• 한국신재생에너지학회:학술대회논문집
• /
• 2005.06a
• /
• pp.397-402
• /
• 2005

Photovoltaic (PV) module can generate electricity using sunlight without causing any environmental degradation. Due to higher fossil fuel prices and environmental awareness, PV applications are becoming more popular as clean source of electricity generation. PV output is sensitive to the operating temperature and can be drastically affected in Building Integrated PV (BIPV) systems. PV Solarwall (SWPV) combination and PV systems have been evaluated in this study for improvement in electrical output and system costs. PV modules under forced ventilation. A 75W polycrystalline silicon PV module was fixed on SW in front of the ventilation fan as it was indicated to be the coolest position on the SW in phoenix simulations. The effectiveness of cooling by means of the forced ventilating air stream has been studied experimentally. The results indicate that there appears to be significant difference in temperature as well as electricity output comparing the SWPV and BIPV options. Electrical output power recovered is about $4\%$ during the typical day of the month of February. RETScreen(R) analysis of a 3kW PV system hypothetically located at Taegu has shown that with typical temperature reduction of $15^{{\circ}C$, it is possible to reduce the simple payback periods by one year. The work described in this paper may be viewed as an appraisal of a SWPV system based on its improved electrical and financial performances due to its ability to operate at relatively lower temperatures.

• Journal of the Korean Solar Energy Society
• /
• v.24 no.4
• /
• pp.77-87
• /
• 2004

BIPV or double skin applied to the surface of the building, power and thermal load cannot both be increased. In the case of BIPV, because it is applied to the facade, incident solar energy decreases and efficiency drops off. The system in this paper complements these disadvantages and aims to decrease the heating & cooling load by transforming solar energy to electronic and thermal energy. The research in this paper is about the applicability of the clear PV attached double-skin system. And the PV electronic generation and the factors that affect the heating & cooling load such as the daily radiation, sun shading ratio, heating & cooling load, daylight luminance and glare distributions in the building are simulated.

• Journal of the Korean Solar Energy Society
• /
• v.32 no.4
• /
• pp.24-33
• /
• 2012

Recently, finishing materials at spandrel area, a part of curtain-wall system, are gradually forced to improve thermal insulation performance in order to enhance the building energy efficiency. Also, Building Integrated Photovoltaics(BIPV) systems have been installed in the exterior side of the spandrel area, which is generally composed of windows. Those BIPVs aim to achieve high building energy efficiency and supply the electricity to building. However, if transparent BIPV module is combined with high insulated spandrel, it would reduce the PV efficiency for two major reasons. First, temperature in the air space, located between window layer and finishing layer of the spandrel area, can significantly increase by solar heat gain, because the space has a few air density relative to other spaces in building. Secondly, PV has a characteristics of decreased Voltage(Voc and Vmp) with the increased temperature on the PV cell. For these reasons, this research analyzed a direct interrelation between PV Cell temperature and electricity generation performance under different insulation conditions in the spandrel area. The different insulation conditions under consideration are 1) high insulated spandrel(HIS) 2) low insulated spandrel(LIS) 3) PV stand alone on the ground(SAG). As a result, in case of 1) HIS, PV temperature was increased and thus electricity generation efficiency was decreased more than other cases. To be specific, each cases' maximum temperature indicated that 1) HIS is $83.8^{\circ}C$, 2) LIS is $74.2^{\circ}C$, and 3) SAG is $66.3^{\circ}C$. Also, each cases yield electricity generation like that 1) HIS is 913.3kWh/kWp, 2) LIS is 942.8kWh/kWp, and 3) SAG is 981.3kWh/kWp. These result showed that it is needed for us to seek to the way how the PV Cell temperature would be decreased.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2018.07a
• /
• pp.521-523
• /
• 2018

본 논문은 PV시스템과 조명제어 알고리즘을 이용해 건물에너지 감소 ICT 융복합 플랫폼 개발에 관한 연구내용을 보여준다. 개발 된 ICT 플랫폼은 비 주거 건물 환경에서 전력을 절감 할 수 있으며, 건물에너지 감소를 위해 조명부하 감소에 중점을 두었다. 본 연구는 이를 위해 LED 디밍 알고리즘을 설계 및 적용하고, ESS 및 PV와의 연계를 통하여 건물에너지 절감 시스템을 제안한다. 제안 된 시스템은 ICT 융합 플랫폼과 LED제어 알고리즘으로 구성 되어 있으며 ICT 플랫폼은 계통 및 ESS 전력 제어/관리 및 모니터링을 수행하고, LED제어 알고리즘을 통해 상황인지기반 조명부하감소를 수행한다. 본 논문에서 제안 된 시스템의 연계 신뢰성을 시뮬레이터 및 에뮬레이터를 통하여 성능 분석을 하였다.