Comfort, carbon emissions, and cost of building envelope and photovoltaic arrangement optimization through a two-stage model

Jin Zhan, Wenjing He and Jianxiang Huang

Applied Energy, 2024, vol. 356, issue C, No S0306261923017877

Abstract: The design of a high-performance building necessitates tradeoffs among multiple performance objectives, and many simulation-based optimization tools have been developed for this purpose. In practice, these tools are often constrained by excessive computational load and tight project deadlines. This study aimed to develop a holistic approach to rapidly identify optimal building design schemes. A novel two-stage model was developed as a surrogate to conventional physics-based models, which were then linked to multi-objective optimization algorithms, namely, NSGA-II, NSGA-III, and C-TAEA, in search of the Pareto optimal and best design schemes. The performance of the two-stage model was further enhanced by applying the least absolute shrinkage and selection operator (LASSO) and Neural Architecture Search methods and learning from the statistical layer. The above approach was tested in the design of an apartment building for seniors in Northern China such as thermal comfort, carbon, and cost. The optimal design achieved through the compromise optimum can significantly reduce thermal discomfort, life-cycle carbon emissions, and high levels of daylighting conditions. The design scheme was visualized using a geometrical remodel module. This study contributes methodologically to complex multi-objective building optimization problems with practical implications for design.

Keywords: Building design optimization; Artificial neural network; Life cycle assessment; Multi-objective; Photovoltaic systems; LASSO (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.apenergy.2023.122423

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