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Impact Study of Thermal Environment on Integration of Extensive Green Roof Techniques in Northwestern Arid Regions of China

机译：西北干旱区热环境对广泛绿化屋顶技术集成的影响研究

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摘要

Selection of the xerophils and drought tolerant plants is highly crucial in green roof techniques in longer drought regions in Northwest China. In the current study, the thermal performance under natural conventional climate in summer was analyzed using the self-made simulation experiment platform through comparison of internal surface temperature with and without green roofs. Distribution frequency of internal surface temperature was investigated by dividing internal surface temperature into several ranges. Statistical analysis showed that the frequency of internal surface temperature lower than 33 ℃ for green roofs was 91.8%, about 1.09 times higher than that for non-green roofs, and that the sum of internal surface temperature exceeding 35 ℃ was about 1/3 of that for non-green roofs. The results proved that green roof has a significant insulation effect. Moreover, the thermal insulation property of green roofs had a strong positive relation with outside temperature. The thermal insulation characteristic was improved as the outdoor temperature increased.
机译：在中国西北较长的干旱地区，选择耐旱植物和耐旱植物对于屋顶绿化技术至关重要。在本研究中，通过比较带有和不带有绿色屋顶的内表面温度，使用自制的模拟实验平台分析了夏季自然常规气候下的热性能。通过将内表面温度分成几个范围来研究内表面温度的分布频率。统计分析表明，绿色屋顶的内表面温度低于33℃的频率为91.8％，是非绿色屋顶的内表面温度的1.09倍，并且超过35℃的内部表面温度之和约为温度的1/3。非绿色屋顶结果证明，绿色屋顶具有显着的保温效果。此外，绿色屋顶的隔热性能与外界温度有很强的正相关关系。随着室外温度的升高，隔热性能得到改善。

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  • 会议地点 Beijing(CN)
  • 作者

    Yajun Wang; Rajendra Prasad Singh; Dafang Fu; Junyu Zhang;

  • 作者单位

    Dept. of Municipal Engineering, School of Civil Engineering, Southeast Univ., Nanjing, 210096, China, Dept. of Municipal Engineering, School of Civil Engineering, Lanzhou Univ. of Technology, Lanzhou, 730050, China;

    Dept. of Municipal Engineering, School of Civil Engineering, Southeast Univ., Nanjing, 210096, China;

    Dept. of Municipal Engineering, School of Civil Engineering, Southeast Univ., Nanjing, 210096, China;

    Dept. of Municipal Engineering, School of Civil Engineering, Southeast Univ., Nanjing, 210096, China;

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