Zhang Huining, Zhang Yiping, Peng Yunchuan, Zhou Yue, Peng Guifen. Thermal effects of architecture surface in Kunming and Beijing. J Appl Meteor Sci, 2008, 19(5): 573-581.
Citation: Zhang Huining, Zhang Yiping, Peng Yunchuan, Zhou Yue, Peng Guifen. Thermal effects of architecture surface in Kunming and Beijing. J Appl Meteor Sci, 2008, 19(5): 573-581.

Thermal Effects of Architecture Surface in Kunming and Beijing

  • Received Date: 2007-09-05
  • Rev Recd Date: 2008-06-10
  • Publish Date: 2008-10-31
  • Urban architecture and the urban heat island intensity is extremely closely related. The buildings' outside surface exhibits unique thermal energy characteristic because it absorbs the solar radiation and thermal energy from people's daily life influences buildings. The atmospheric thermal energy condition around buildings is affected inevitably, then the urban climate is affected. The observational data of buildings' external walls' surface temperature, rooftop surface temperature and the air temperature near the buildings' external surfaces in three different cities of Kunming, Beijing utilized. The vertical distribution rule of buildings' external surface temperature and air temperature near the buildings' external surfaces, the thermal effect features of the wall, and the rooftop between the nearby atmosphere are analyzed. The comparative analysis on two cities buildings thermal conditions is conducted. The following preliminary conclusions are drawn. In the same area, buildings' external walls' surface temperature and the air temperature near the buildings' external surfaces are different respectively from different directions, seasons, and heights. The influence of solar radiation on buildings' external walls surface temperature is greater than on the air temperature near the buildings' external surfaces. Generally speaking, the wall's surface is a heat source in daytime, and a heat sink at night. In different areas, there are many similarities and many differences in the thermal energy affect on buildings' external walls. The heat flux of the buildings' external walls basically is positive in daytime, is negative at night, and there is an extreme small value just before sunrise in Kunming. While in summer of Beijing, the heat flux of the buildings' external walls is basically negative in daytime and positive at night. This indicates that the influence of climate and people's activity is great to the thermal energy effect on the urban buildings' external walls in different cities. The average heat fluxes between the buildings' rooftop and its nearby air are basically positive in different areas and seasons. Buildings' rooftop displays the strong heat source effect. The thermal energy effect intensity and the solar radiation show a positive correlation. In summary, the urban building external surfaces (external wall surfaces, the surface of rooftop) are different from the ground in the urban region, and is noticeably influential thermal active surface in the formation of urban climate.
  • Fig. 1  The comparison of buildings' external surface temperature in Kunming (1:January, 2:July)

    (a) east wall, (b) south wall, (c) west wall, (d) north wall

    Fig. 2  The buildings'rooftop surface temperature, the air temperature nearby the buliding's rooftop surface and the heat flux between the buildings' rooftop and the nearby air in Kunming (1:January, 2:July)

    (a) rooftop surface temperature, (b) the air temperature nearly the rooftop surface, (c) heat flux between the rooftop and the nearby air

    Fig. 3  The comparison of the air temperature nearby the buildings' external surfaces in Kunming (1:January, 2:July)

    (a) east wall, (b) south wall, (c) west wall, (d) north wall

    Fig. 4  The heat flux of the building's external walls in different hight in Kunming (1:January, 2:July)

    (a) east wall, (b) south wall, (c) west wall, (d) north wall

    Fig. 5  The comprison between the average heat flux of the building's external walls and the heat flux of the buildings's rooftop in Kunming (1:January, 2:July)

    (a) east wall, (b) south wall, (c) west wall, (d) north wall

    Fig. 6  The buildings' external surface temperature, the air temperature nearby the building's external surface and the heat flux between the buildings' external surface and the nearby air of Beijing in July (1 is south wall, 2 is west wall)

    (a) buildins' external surface temperature, (b) the air temperature nearby the buildings' external surface, (c) heat flux buetween the buildings' external surface and the nearby air, (d) the average of heat flux

    Table  1  The diurnal temperature range and diurnal maximum, minimum temperature of the buildings' external surface of Kunming in January and July (unit:℃)

    Table  2  The diurnal air temperature range and diurnal maximum, minimum air temperature nearby the buildings' external surface of Kunming in January and July (unit:℃)

  • [1]
    Department of Economic and Social Affairs, Population Division, Population Challenges and Development Goals. New York:United Nations, 2005.
    [2]
    国家统计局.中华人民共和国2005年国民经济和社会发展统计公报. 2006.
    [3]
    彭希珑, 邹寒山, 何宗健.城市热岛效应对城市生态系统的影响及其对策研究.江西科学, 2003, 21(3):257-259. http://www.cnki.com.cn/Article/CJFDTOTAL-JSKX200303024.htm
    [4]
    Chandler T J. Urban Climate Inventory and Prospect. Paper Presented at WMO Symposium on Urban Climate and Building Climatology. Brussels, 1969.
    [5]
    张一平, 李佑荣.城市区域内建筑物表面温度特征.城市环境与城市生态, 1997, 10(1):39-42. http://www.cnki.com.cn/Article/CJFDTOTAL-CHCS701.011.htm
    [6]
    张一平.城内外屋顶面附近风·温特征的初步分析.气象科学, 1998, 18(1):56-62. http://www.cnki.com.cn/Article/CJFDTOTAL-QXKX199801007.htm
    [7]
    张一平, 彭贵芬, 张庆平.城市区域屋顶上与地上的风速和温度特征分析.地理科学, 1998, 18(1):45-52. http://www.cnki.com.cn/Article/CJFDTOTAL-DLKX801.006.htm
    [8]
    张一平, 何云玲, 刘玉洪, 等.昆明城市建筑物外壁表面热力效应研究———不同季节建筑物外墙壁面表温和近旁气温时空分布特征.地理科学, 2004, 24(5):597-604. http://www.cnki.com.cn/Article/CJFDTOTAL-DLKX200405014.htm
    [9]
    Zhang Yiping, Liu Yuhong, Ma Youxin, et al. Thermal effects of building's external surfaces in city—characteristics of heat flux into and out of external wall surfaces. Chinese Geographical Science, 2004, 14(4):343-349. doi:  10.1007/s11769-004-0039-6
    [10]
    He Yunling, Zhang Yiping, Liu Yuhong, et al. A study on the characteristics of internal and external wall surface temperature in the urban area. Journal of Tropical Meteorology, 2004, 10 (2):216-224. http://www.cqvip.com/QK/85390X/200402/11629863.html
    [11]
    何云玲, 张一平, 刘玉洪, 等.城市区域内建筑物墙体内外壁表面温度特征的比较研究.热带气象学报, 2004, 20(2):198-205. http://www.cnki.com.cn/Article/CJFDTOTAL-RDQX200402011.htm
    [12]
    张会宁, 张一平, 何云玲, 等.昆明城市庭院气温垂直分布特征及不同下垫面对其影响的研究.热带气象学报, 2007, 23(3):293-299. http://www.cnki.com.cn/Article/CJFDTOTAL-RDQX200703011.htm
    [13]
    陈宗瑜.云南气候总论.北京:气象出版社, 2001.
    [14]
    北京市气象局气候资料室.北京气候志.北京:气象出版社, 1987.
    [15]
    云南省统计局.云南统计年鉴 (2004).北京:中国统计出版社, 2005:706.
    [16]
    陈启高.建筑热物理基础.西安:西安交通大学出版社, 1991:163-166.
  • 加载中
  • -->

Catalog

    Figures(6)  / Tables(2)

    Article views (3962) PDF downloads(1774) Cited by()
    • Received : 2007-09-05
    • Accepted : 2008-06-10
    • Published : 2008-10-31

    /

    DownLoad:  Full-Size Img  PowerPoint