建筑光伏一体化瓦屋面构造优化

Structure Optimization of Building Integrated Photovoltaic Tile Roof

摘要

本文提出了一种建筑光伏一体化瓦(光伏瓦)屋面模块，在北京搭建试验台，建立其数值模型，优化结构参数，以解决光伏瓦屋面散热问题. 采用田口法和计算流体力学仿真，设计和模拟正交方案，首次综合考虑顺水条高度、散热孔半径和散热孔间距 3 个因素，优化光伏瓦构造. 结果表明，散热孔半径对光伏背板温度影响最大，其次是散热孔间距和顺水条高度. 在北京地区，优化方案是顺水条高度 60mm，散热孔半径 60mm，散热孔间距 250mm. 与对照组相比，优化方案的光伏板背板温度降低了 1.43℃.

Abstract

This paper proposes a novel building-integrated photovoltaic (BIPV) tile module, builds an experimental test rig in Beijing, and establishes a corresponding numerical model to optimize the structural parameters of the module, addressing the heat dissipation problem of BIPV tile roofs. Taguchi method and Computational Fluid Dynamics (CFD) numerical simulation were employed to design and simulate orthogonal schemes, optimizing photovoltaic tile roof structure for the first time by considering three factors: height of counterbatten, radius of heat emission hole and hole spacing. The results indicate that the radius of heat emission hole has the most significant impact on the temperature of the photovoltaic backsheet, followed by hole spacing and the height of counterbatten. In the Beijing area, the optimal scheme features a counterbatten height of 60mm, radius of heat emission hole of 60mm and spacing between heat emission holes of 250mm. Compared with the control group, the temperature of the photovoltaic panel backsheet is reduced by 1.43℃.

关键词

建筑光伏一体化瓦屋面 / 结构优化 / 散热 / 田口法 / 计算流体力学仿真

Key words

building integrated photovoltaic tile roof / structure optimization / heat dissipation / Taguchi method / Computational Fluid Mechanics simulation

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基金资助

河北水利电力学院基本科研业务费项目(SYKY2402)

中国建筑设计研究院有限公司科技创新项目(1100C080240213)