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Id 2846
Author Zheng X.; Chen L.; Yang J.
Title Simulation framework for early design guidance of urban streets to improve outdoor thermal comfort and building energy efficiency in summer
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Zheng X.; Chen L.; Yang J. Simulation framework for early design guidance of urban streets to improve outdoor thermal comfort and building energy efficiency in summer,Building and Environment 228

Keywords Air conditioning; Architectural design; Atmospheric temperature; Bridges; Cooling; Deterioration; Economic and social effects; Energy efficiency; Pareto principle; Structural design; Thermal comfort; Thermal load; Thermal stress; Building energy efficiency; Microclimate; Outdoor thermal comfort; Outdoor thermal environment; Parametric simulations; Pareto-optimality; Street design; Urban heat island; Urban street design; Urban streets; computer simulation; energy efficiency; heat island; microclimate; summer; urban design; Global warming
Link to article https://www.scopus.com/inward/record.uri?eid=2-s2.0-85145610013&doi=10.1016%2fj.buildenv.2022.109815&partnerID=40&md5=aa1ae2b6e12be5a87a5b69b8bf14e4b9
Abstract Global warming and the urban heat island effect have led to the deterioration of the outdoor thermal environment and the rise of building cooling demand, calling for urban design with high environmental quality. However, little has been changed in the practice of urban street design. This paper bridges this gap by developing a framework of parametric simulation for design guidance of urban streets with an advanced urban canopy model that can simulate the interactive indoor-outdoor environment. Case studies are conducted at the neighborhood scale for six cities to improve outdoor thermal comfort and building energy efficiency in summer. The influence of street and building design parameters has been investigated based on 31104 simulations. Results reveal the conflict between optimizing outdoor thermal comfort and optimizing building energy efficiency. In the majority of the investigated cities, window-to-wall ratio, window type, and street orientation are the most influential parameters. Strategies by adjusting these parameters can significantly improve outdoor thermal comfort, as quantified by thermal stress hours, at a cost of increasing the building cooling load. Planting bigger and denser roadside trees always moderately reduces the thermal stress hours and building cooling load. These results demonstrate the potential of this framework to identify the design trade-offs between thermal comfort and building energy efficiency. The framework can be extended to various cities to help designers and policymakers at the early design stage. © 2022 Elsevier Ltd

Metodology

DOI 10.1016/j.buildenv.2022.109815
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Technique
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