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The energy performance of building integrated photovoltaics (BIPV) by determination of optimal building envelope

机译：通过确定最佳建筑信封构建集成光伏（BIPV）的能量性能

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摘要

Building form and envelope surfaces play a significant role in energy performance assessment and the generated energy potential of the building integrated photovoltaics (BIPV) concept in early-stage design. To increase the energy efficiency level, form factor (FF) is proposed as a helpful tool that provides a strong relationship between the exposed surface areas and the treated floor area (TFA). This research aims to develop a methodology for a parametric study to determine the related balance between the TFA and the required BIPV area in the form enclosure to meet specific primary energy demand (SPED) according to the international Passive House standard (PHS). Therefore, various form types, including square, rectangle, L, and T shapes, derived from four modular cubes, are classified based on the same FF. Optimal form selection per group is conducted through BIPV potential evaluation for the exposed surfaces in six different orientations separately. Thereafter, the BIPV efficiency level for the optimized forms is examined using its utilization factor and coverage index scenarios based on the facade and roof combination priorities. The results indicate that the generated energy sufficiency is affected by the form configuration and its orientation. Additionally, the optimal BIPV-based FF value of 0.71 implies the priority of roof-based scenarios for less BIPV utilization. Finally, the correlation value for the BIPV coverage index relative to the total envelope for the optimal forms and orientation is higher than 0.92, which can be extended to other forms in different locations as an assessment model.
机译：建筑形式和信封表面在早期设计中的能量性能评估和建筑物集成光伏（BIPV）概念的产生的能源中发挥着重要作用。为了提高能量效率水平，提出外形（FF）作为提供曝光表面区域和处理过处的地面面积（TFA）之间具有强烈关系的有用工具。该研究旨在开发参数研究的方法，以确定TFA和所需的BIPV区域之间的相关平衡，根据国际被动房屋标准（PHS），以满足特定的主要能量需求（SPED）。因此，基于相同的FF对各种形式类型，包括从四个模块化多维数据集进行分类。每组最佳形式选择通过分别为六种不同的方向的暴露表面的BIPV电位评估进行。此后，使用其利用因子和基于外立面和屋顶组合优先级的覆盖率指标场景来检查优化形式的BIPV效率水平。结果表明，产生的能量充足受到形式配置及其方向的影响。此外，基于最佳的BIPV的FF值为0.71意味着基于屋顶的方案的优先级，以便更少的BIPV利用率。最后，相对于最佳形式和取向的总包络的BIPV覆盖率指数的相关值高于0.92，其可以延伸到不同位置的其他形式作为评估模型。

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