Improvement Strategy of Urban Street Thermal Environment
Owing to the increase in building structures and road system,lack of sufficient green area in urban environment,imperviousness of ground surface and large amount of waste heat,a large heat retainer has been fabricated,which has resulted in the heat island effect.This research mainly focuses on the geographic feature of the urban buildings groups in its investigation of the outdoor thermal environment.This research used factors such as improving the reflectivity of the building materials,increasing the permeable rate of the paving material and planting arbours as shade trees as the design variables.Moreover,the research has employed the Computational Fluid Dynamics as the prediction and analysis tool to analyze the feasibility and efficiency in order to improve cooling through the design variables in the urban street canyons where there is only limited room for improvement.This research then proposes the guidelines which help in reducing the heat island effect based on the analysis results.Partly from the research results,the wind speed can improve the cooling effect of the variables.Compared with the preset reference temperature,it was observed that 5%discomfort zone can be improved through improving the reflectivity of the building materials,13%through improving the permeable rate of the paving material and 40%through the shade from arbours,which is the maximum.
micro-climate temperature lowering computational fluid dynamics
WANG Wen-an
Tamkang University,Taiwan
国际会议
2017世界可持续建筑环境大会(the World Sustainable Built Environment Conference)
香港
英文
1432-1438
2017-06-05（万方平台首次上网日期，不代表论文的发表时间）