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Showing posts with the label #DaylightingPerformance

Parametric Multi-Objective Optimization of Building Integrated Photovoltaic Façades

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Building Integrated Photovoltaic (BIPV) façades play a critical role in advancing net-zero and energy-positive building strategies by simultaneously serving as envelope elements and renewable energy generators. However, optimizing BIPV façades is challenging due to competing performance objectives, particularly photovoltaic energy generation and indoor daylighting quality. This study proposes a parametric optimization framework to systematically address these trade-offs during early-stage design. Challenges in Balancing Energy Generation and Daylighting Façade design decisions, such as window-to-wall ratio (WWR), directly influence solar exposure on opaque surfaces for photovoltaic efficiency while also affecting indoor daylight availability and visual comfort. Increasing PV-active areas often reduces daylight penetration, whereas excessive glazing can compromise energy generation potential. These conflicting requirements necessitate a multi-objective optimization approach. Paramet...

Performance Evaluation of Thermotropic Glazing in Mixed-Ventilated Residential Buildings

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Thermotropic (TT) glazing has demonstrated strong energy-saving potential in air-conditioned office buildings located in hot climates. However, its applicability and performance in mixed-ventilated residential buildings—particularly when assessed using the adaptive thermal comfort model—remain insufficiently explored. This study addresses this gap by evaluating TT glazing performance across multiple building performance indicators in residential contexts. Simulation Model Development and Validation A comprehensive building performance simulation model was developed and validated using experimental data to ensure reliability. The validated model enabled accurate assessment of TT glazing behavior under varying climatic and operational conditions, forming a robust foundation for comparative performance analysis against conventional double-clear glazing. Evaluation Framework for Mixed-Ventilated Buildings The study employed a multi-dimensional evaluation framework incorporating availa...