| Related citation: | Lin Liu,Yaoyu Lin,Dan Wang,Jing Liu.Quantitative Analysis of the Outdoor Thermal Comfort in the Hot and Humid Summertime of Shenzhen, China[J].Journal of Harbin Institute Of Technology(New Series),2017,24(2):30-38.DOI:10.11916/j.issn.1005-9113.15293. |
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| Author Name | Affiliation | | Lin Liu | School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090,China | | Yaoyu Lin | Shenzhen Key Laboratory of Urban Planning and Decision Making Simulation, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, Guangzhou,China | | Dan Wang | Shenzhen Key Laboratory of Urban Planning and Decision Making Simulation, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, Guangzhou,China | | Jing Liu | School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090,China
State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: |
| Outdoor thermal comfort has always been a major issue due to its irreplaceable role in maintaining good health and energy use. Thus, quantitative analysis of outdoor thermal comfort and discussions on influential factors seem very necessary to achieve the climate-conscious urban design. Therefore, an outdoor thermal comfort questionnaire survey and the simultaneous field measurement were conducted in six different places during the hot and humid summertime in Shenzhen. The results show that the overall weather conditions during the investigation can be expressed with high temperature and high humidity with strong solar radiation. The micro-meteorological parameters of six test sites vary greatly due to their different regional spatial layouts. Moderate range of air temperature (Ta) is between 28 to 30 ℃ while that of relative humidity (RH) mainly concentrates in 60%-70% with the thermal sensation votes. The main influential factors impacting outdoor thermal comfort are obtained and Ta has the greatest effect. The overall thermal comfortable ranges in Shenzhen are expressed by the range of 28.14-32.83 ℃ of PET and 24.74-30.45 ℃ of SET*. With the correlation analysis between the characteristic parameters of regional spatial layout and thermal climate and thermal comfort, it reveals that increasing the coverage ratio of water and green space (S) helps lower Ta and increase RH. The global solar radiation (G) has a significant negative correlation with the height of buildings (H) and a positive correlation with sky view factor (SVF). Overall, reasonable configuration of the regional spatial layout contributes to providing a thermal comfortable environment. |
| Key words: outdoor thermal comfort micro-meteorology hot and humid climate field survey influential factors regional spatial layout |
| DOI：10.11916/j.issn.1005-9113.15293 |
| Clc Number:TU14 |
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| Descriptions in Chinese: |
| 湿热地区夏季室外热舒适的量化分析：以深圳为例 刘 琳1 ，林姚宇2，王 丹2，刘 京1,3 （1. 哈尔滨工业大学市政环境工程学院； 2. 哈尔滨工业大学深圳研究生院；3. 哈尔滨工业大学 城市水资源与水环境国家重点实验室） 创新点说明：（1）本文采用问卷调查与气象测试相结合的方法，通过将近1000余份的人体舒适性问卷统计及气象条件监测结果，得到了以深圳为例的湿热地区的热舒适区间分布。 （2）通过局地气候的参数区间及人体对气候参数的实时反应，得到了湿热地区人体对气候参数的舒适性气象参数区间分布。 （3）本文重点考虑了多个测点空间格局对局地气候与热舒适的量化作用。 研究目的： 本文针对湿热地区长期的夏季气候条件，拟通过人体对室外舒适性的及时反应和气象参数值，得到室外多种气象参数和热舒适参数的舒适性量化区间，并讨论多种建筑空间布局对人体舒适性的量化影响；为可持续的气候适宜的舒适城市建设提供理论基础和技术支持。 研究方法： 采用气象条件实时监测与人体舒适性问卷调查相结合的方法，同时考虑了城市建筑空间布局的参数化影响，通过统计分析及线性回归分析的数学方法，得到参数化的量化区间分布及量化影响。 结果： （1）测试期间的整体气候条件表现为高温高湿及强太阳辐射条件。六个测点的微气象参数由于其不同的空间布局而导致不同的变化。 （2）通过舒适性投票的结果可知，适中的温度区间在28℃—30℃，适中的相对湿度区间在60%—70%，影响室外热舒适的气象参数主要是气温的影响最大。 （3）深圳整体热舒适区间在PET为28.14℃—32.83℃，而SET*的区间为24.74℃—30.45℃。 （4）通过空间格局参数及热舒适参数的相关性分析结果可知，增加水体与绿地空间的比率可以有效地降低炎热的空气温度。太阳辐射量与建筑平均高度有着很明显的负相关，与天空角系数SVF存在着明显的正相关性。 结论： 通过人体舒适性的空间测试及问卷统计研究可知，城市气象条件影响着室外空间热舒适条件，且通过合理的城市空间布局与下垫面特性条件配比，可以有效地改善城市局地区域的室外热舒适条件，提高室外空间的气候适宜程度。 关键词：室外热舒适；微气象；热湿气候；实地测试；影响因子；城区空间布局 |
