improved urban heat island mitigation using bio climatic redevelopment along an

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improved urban heat island mitigation using bio climatic redevelopment along an urban waterfront at Victoria Dockside,Hong Kong

• Introduction
  • Background
    • 1.Global warming negative impacts & Urban redevelopment causes dramatic changu
    • 2.bioclimatic interventions—more comfortable urban spaces—improve the quality of life in urban spaces
    • 3.status、problem of HongKong
    • 4. the Sustainable Building Design (SBD) Guidelines and its aim
  • UHI mitigation strategies
    • Urban form
    • Urban ventilation
    • Urban blue space
    • Urban greenery
  • Study objectives
    • (1) expand on existing knowledge of the synergistic effects of UHI mitigation strategies on the microclimates and outdoor thermal comfort of urban waterfronts
    • 2) contribute to a better understanding of bioclimatic design strategies for more appropriate urban redevelopment.
• Methodology
  • Study area
    • location/climate/temperature
    • property/density
  • Microclimatic measurements
    • Acquisition period
    • Survey location
    • Measuring instruments and indicators
  • ENVI-met simulation
    • Model description:a holistic three-dimensional non-hydrostatic microcli- mate model intended for the simulation of surface-plant-air interactions
    • Model setup
      • climate: subtropical hot- humid summer climate
      • meteorological data :30min
      • relative indicators:linear interpolation
    • Simulation scenarios
      • the previous building configu- ration (Case A)
      • redeveloped building configuration (Case B)
      • Case B with the adoption of a ventilation corridor and extensive greenery (Case C)
  • Data analysis
• results
  • Evaluation of the ENVI-met model
  • Synergistic effects of waterfront UHI mitigation strategies
    • Ta between Cases A,B and C
    • Comparison of wind speed between Cases A,B and C
    • Comparison of Tmrt between Cases A,B and C
    • Comparison of PET between Cases A,B and C
  • Cooling effect of extensive greenery
    • Cooling effect of trees on Ta
    • Cooling effect of green facade and green roof on Ts
• Discussion
  • Effect of UHI mitigation strategies on microclimate change and thermal comfort improvement
  • Practical implication for UHI mitigation strategies along waterfronts
• Conclusions
  • evaluated the synergistic effect of UHI mitigation strategies on local microclimate and outdoor thermal comfort in a waterfront and inner urbanised setting of Hong Kong’s Victoria Dockside area.
  • Three scenarios for a typical summer day were simulate using ENVI-met
  • demonstrate the synergistic effects of bioclimatic design on UHI mitigation along waterfronts.
• 评价与感想
  • 本论文选题结合全球时下热点，关注气候变化。通过ENVI-met数值模拟研究了重新开发的城市形态、通风廊道和广泛的绿化对香港维多利亚港的一个城市海滨的当地微气候和室外热舒适度的协同缓解作用，为沿城市水岸使用生物气候设计提供了科学指导，以实现改善微气候和街区范围内的热舒适性，具有较高的战略价值。本论文综述相对全面，对国内外研究动态基本掌握。研究运用了一定的基础理论、专业知识，并可结合相关的数理模型进行定量化分析。实验设计及研究方法正确，可引证相关资料。写作有条理、论证逻辑清晰、格式规范，但个人认为对于生物设计的方面不太突出。