期刊
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
卷 128, 期 2, 页码 168-172出版社
ASME
DOI: 10.1115/1.2188533
关键词
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BIPV (building integrated photovoltaics) has progressed in the past years and become all element to be considered in city, planning. BIPV has significant influence on microclimate in urban environments and the performance of BIPV is also affected by urban climate. The thermal model and electrical performance model of ventilated BIPV arc combined to predict PV temperature and PV power output in Tianjin, China. Then, by using dynamic building energy model, the building cooling load for installing BIPV is calculated. A multi-layer model AUSSSM of urban canopy layer is used to assess the effect of BIPV on the Urban Heat Island (UHI). The simulation results show that in comparison with the conventional roof the total building cooling load with ventilation PV roof may be decreased by 10%. The UHI effect a er using BIPV relies on the surface absorptivity of original building. In this case, the daily total PV electricity output in urban areas may be reduced by 13% compared with the suburban areas due to UHI and solar radiation attenuation because of urban air pollution. The calculation results reveal that it is necessary to pay attention to and further analyze interactions between BIPV and microclimate in urban environments to decrease urban pollution, improve BIPV performance and reduce cooling load.
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