STRUCTURE OPTIMIZATION AND ENERGY SAVING POTENTIAL INVESTIGATION OF NOVEL INTERGRATED VENTILATED PV ROOF

被引：0
|
作者：
Peng J. [1 ]
Zhang Q. [1 ]
Zhou C. [2 ]
Zhang S. [2 ]
Zhang F. [3 ]
Luo Y. [1 ]
机构：
[1] College of Civil Engineering, Hunan University, Changsha
[2] Longi Green Energy Technology Co.，Ltd., Xi’an
[3] Center International Group Co.，Ltd., Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 12期
关键词：
BAPV; BIPV; energy saving; photovoltaic; roof; structure optimization; thermoelectric properties;
D O I：
10.19912/j.0254-0096.tynxb.2023-1334
中图分类号：
学科分类号：
摘要：
A novel integrated ventilated photovoltaic roof was proposed in the paper. To optimize the structure of the roof, a CFD model was established and verified by experiments. With the CFD model, the effect of the heat dissipation channel height H and module spacing D on the temperature distribution of the PV roof were investigated. The results show that the increase of H and D can strengthen the heat dissipation of the PV roof and effectively improve its power generation efficiency. Considering both of the heat dissipation effect and structural reliability, the optimal H and D are calculated to be 50 mm and 100 mm respectively. Furthermore, the heat transfer and energy generation characteristics of the PV roof were simulated with EnergyPlus. Compared to the conventional roof, its heat gain in summer and heat loss in winter were reduced by 48.0% and 27.1% in Xi’an, and the annual energy saving potential was as high as 198.0 kWh/m2. © 2023 Science Press. All rights reserved.
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页码：24 / 32
页数：8
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