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Modeling Thermal Comfort and Optimizing Local Renewal Strategies—A Case Study of Dazhimen Neighborhood in Wuhan City

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  • Chong Peng

    (School of Architecture and Urban Planning, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Tingzhen Ming

    (School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Jianquan Cheng

    (School of Science and the Environment, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK)

  • Yongjia Wu

    (School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Zhong-Ren Peng

    (Center for ITS & UAV Applications Research, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    Department of Urban and Regional Planning, University of Florida, Gainesville, FL 32607, USA)

Abstract

Modeling thermal comfort provides quantitative evidence and parameters for effective and efficient urban planning, design, and building construction particularly in a dense and narrow inner city, which has become one of many concerns for sustainable urban development. This paper aims to develop geometric and mathematical models of wind and thermal comfort and use them to examine the impacts of six small-scale renewal strategies on the wind and thermal environment at pedestrian level in Dazhimen neighborhood, Wuhan, which is a typical case study of urban renewal project in a mega-city. The key parameters such as the solar radiation, natural convection, relative humidity, ambient crosswind have been incorporated into the mathematical models by using user-defined-function (UDF) method. Detailed temperature and velocity distributions under different strategies have been compared for the optimization of local renewal strategies. It is concluded that five rules generated from the simulation results can provide guidance for building demolition and reconstruction in a neighborhood and there is no need of large-scale demolition. Particularly, combining the local demolition and city virescence can both improve the air ventilation and decrease the temperature level in the study area.

Suggested Citation

  • Chong Peng & Tingzhen Ming & Jianquan Cheng & Yongjia Wu & Zhong-Ren Peng, 2015. "Modeling Thermal Comfort and Optimizing Local Renewal Strategies—A Case Study of Dazhimen Neighborhood in Wuhan City," Sustainability, MDPI, vol. 7(3), pages 1-20, March.
    • Handle: RePEc:gam:jsusta:v:7:y:2015:i:3:p:3109-3128:d:46800
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    References listed on IDEAS

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    2. Chong Peng & Chu Li & Zuyu Zou & Suwan Shen & Dongqi Sun, 2015. "Improvement of Air Quality and Thermal Environment in an Old City District by Constructing Wind Passages," Sustainability, MDPI, vol. 7(9), pages 1-21, September.
    3. Liang Zhao & Yijie Zhang & Yiting Li & Zichao Feng & Yuetao Wang, 2024. "Correlations of Spatial Form Characteristics on Wind–Thermal Environment in Hill-Neighboring Blocks," Sustainability, MDPI, vol. 16(5), pages 1-22, March.
    4. Toparlar, Y. & Blocken, B. & Maiheu, B. & van Heijst, G.J.F., 2017. "A review on the CFD analysis of urban microclimate," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 1613-1640.
    5. Yi Song Liu & Tan Yigitcanlar & Mirko Guaralda & Kenan Degirmenci & Aaron Liu & Michael Kane, 2022. "Leveraging the Opportunities of Wind for Cities through Urban Planning and Design: A PRISMA Review," Sustainability, MDPI, vol. 14(18), pages 1-78, September.

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