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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한건축학회 대한건축학회 논문집 - 계획계 대한건축학회논문집 - 계획계 제21권 제7호
발행연도
2005.7
수록면
149 - 156 (8page)

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초록· 키워드

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The performance of building integrated Photovoltaic(BIPV) module is affected by various factors such as installation angle, temperature, shadowing and so on. Among them, shadowing must be one of the most important factors. Because the solar cells are connected in series, the output current from the whole string is affected by partial shading and minor shading can result in a major loss of energy. Shadowing will depend on the geography of the site, neighbouring buildings and self-shading by the architectural forms. Therefore, obstructions which can be handled by architectural design should be avoided wherever possible, whether they are telephone poles, chimneys, trees, other buildings or even other parts of the array itself. Especially, self-shading due to the architectural form should be avoided, which is mainly responsible to a architect.
The aim of this study is to evaluate the effect of self-shading by building forms in BIPV application. Firstly, annual average shading area ratios(SAR) of south faced PV facade are evaluated depending on the extrusion length ratio(ELR) of horizontal and vertical self-shading mass. Self-shading effect of PV module output can be indirectly estimated through the SARs with ease in a very early design stage. Secondly detailed full energy simulations with ESP-r program are conducted to evaluate annual power output variation depending on the ELRs. All the effects for BIPV output calculation such as surface temperature of PV module, ambient temperature, diffuse radiation, incidence angle of insolation are considered in those simulations with actual hourly climate data of Daejeon. Various quantitative relationship of self-shading pattern and PV power output are proposed as results. Those may be utilized with BIPV design guideline for architect.

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Abstract

1. 서론

2. 음영과 BIPV와의 관계

3. 음영면적을 기준한 평가결과

4. PV모듈 발전량을 기준한 통합해석 결과

5. 결론

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