A Simulation-Based Study on the Impact of Parametric Design on Outdoor Thermal Comfort and Urban Overheating

Cheuk Yin Wai (), Muhammad Atiq Ur Rehman Tariq, Hing-Wah Chau, Nitin Muttil and Elmira Jamei ()
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Cheuk Yin Wai: College of Sport, Health and Engineering, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia
Muhammad Atiq Ur Rehman Tariq: Centre of Excellence in Water Resources Engineering, G.T. Road, Lahore 54890, Pakistan
Hing-Wah Chau: College of Sport, Health and Engineering, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia
Nitin Muttil: Institute for Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia
Elmira Jamei: College of Sport, Health and Engineering, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia

Land, 2024, vol. 13, issue 6, 1-18

Abstract: Under the current energy crisis and climate change, sustainable urban planning and building design are a priority to achieve a net-zero future, as energy use in buildings for thermal comfort is one of the major carbon emission contributors. To adapt to a rapidly growing and stringent urban environment, where buildings are causing more emissions due to more frequent and severe extreme hot weather events, the parametric design approach has great potential and flexibility in providing a sustainable solution by simulating different design scenarios. This study aims to analyse urban geometry and identify the impact of various built environment scenarios on outdoor thermal comfort under certain climates. The Grasshopper program was used along with the Ladybugs plug-in to provide visualised outcomes of outdoor thermal comfort, with simulation models on Rhinoceros 3D Version 7 SR37 (7.37.24107.1500). Comparing the thermal comfort performance of different design scenarios, based on building height, orientation and urban geometry, helps to identify which factors are more impactful on building design. This study demonstrates the workflow of parametric design in analysing the microclimate pattern and outdoor thermal comfort performance of the existing built environment in Melbourne, Australia, to provide an insight for stakeholders and builders to inform better decision-making in urban planning and building design in order to achieve a zero-emission future.

Keywords: urban heat; thermal comfort; urban geometry; built environment; heatwave; passive cooling; parametric design; generative algorithms; Rhinoceros 3D; Grasshopper plug-in (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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