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Limitations of EnergyPlus in analyzing energy performance of semi-transparent photovoltaic modules
Case Studies in Thermal Engineering ( IF 6.8 ) Pub Date : 2020-10-16 , DOI: 10.1016/j.csite.2020.100765
Sun-Hye Mun , Jeonga Kang , Younghoon Kwak , Young-Sun Jeong , Sang-Moon Lee , Jung-Ho Huh

Semi-transparent photovoltaic (STPV) modules are a renewable energy source that significantly affects the energy load of buildings by simultaneously producing power and acting as a window. Therefore, the application of STPV to buildings requires investigation from various perspectives.

In this study, the space with STPV was modeled using EnergyPlus and the simulation results were compared with the mock-up data. The characteristics of power production according to cell type were not reflected in simulation because only the cell efficiency was applied to calculate in simulation unlike data obtained from a mock-up. Moreover, the result of analyzing the data based on the mock-up indicated that the indoor temperature in the space with the c-Si module was higher than that in the space with the a-Si. However, the opposite result was derived from simulation. This result was obtained because a temperature increase of modules during power generation was not reflected in simulation. Furthermore, it was found that the indoor temperature was analyzed based on only the u-value and SHGC in simulation because the indoor temperature increasing by the radiation from the STPV was not reflected in simulation. This study proposes the necessity and direction of algorithm improvement through comparison between simulation and mock-up.



中文翻译:

EnergyPlus在分析半透明光伏模块的能源性能方面的局限性

半透明光伏(STPV)模块是可再生能源,通过同时发电和充当窗户,可显着影响建筑物的能源负荷。因此,将STPV应用于建筑物需要从各个角度进行研究。

在这项研究中,使用EnergyPlus对带有STPV的空间进行建模,并将模拟结果与模​​型数据进行比较。根据电池类型的发电特性没有反映在仿真中,因为与从实体模型获得的数据不同,在仿真中仅应用电池效率进行计算。此外,基于模型的数据分析结果表明,使用c-Si模块的空间的室内温度高于使用a-Si模块的空间的室内温度。但是,相反的结果是从模拟得出的。之所以获得此结果,是因为仿真中未反映出发电过程中模块的温度升高。此外,结果发现,在模拟中仅基于u值和SHGC来分析室内温度,因为在模拟中未反映出STPV辐射导致的室内温度升高。通过对仿真与模型的比较,提出了算法改进的必要性和方向。

更新日期:2020-10-30
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