高反射涂料自然老化后的隔热性能
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TU111.4

基金项目:

重庆市基础与前沿研究计划一般项目(CSTC2014jcyjA90018);“十三五”国家重点研发计划(2017YFC0702903);中国中冶重大科技专项(0012012006)


Thermal insulation performance of high reflective coatings after natural aging
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为研究高反射涂料在夏热冬冷地区一年自然老化后的隔热性能,以重庆市某办公建筑两间建筑外形、围护结构和朝向均相同的顶层房间为研究对象,在屋顶上涂敷普通灰色涂料、白色高反射涂料分别作为基准屋顶、高反射屋顶,分别选取2014年7月和2015年7月的连续3个晴朗日进行夏季隔热性能实测。研究结果表明:经过一年自然老化后的高反射屋顶反射率下降,隔热性能有所降低,在相同空调工况下,内外壁面降温幅度分别减小3.2℃和4.2℃,空调耗电量降低0.03 kWh/m2·d;非空调工况时,室内空气温度降温幅度减小2.5℃。

    Abstract:

    Experiment was carried out to investigate the impact of natural aging of high reflective coating on its thermal insulation performance in hot-summer and cold-winter zone. White reflective coatings and gray coatings were applied respectively on two identical top-floor rooms of an office building in Chongqing with same floor area, envelope material and orientation. Thermal insulation performance was investigated by analyzing the records of three consecutive sunny day in July 2014 and July 2015. The results showed that reflectivity of reflective roof and thermal insulation performance decreased after one-year natural aging. When the room was conditioned with the setting point of 26℃, average temperatures of interior and exterior surfaces decreased by 3.2℃ and 4.2℃ respectively, and the energy consumption of air conditioners decreased by 0.03 kWh/m2·d in July 2014 compared with those in July 2015. When air-conditioners were off, there was a decrease of 2.5℃ in average indoor air temperature in July 2014 compared with those in July 2015.

    参考文献
    相似文献
    引证文献
引用本文

高亚锋,郭睿,徐江民,庄超群,向瑞骐,范东叶.高反射涂料自然老化后的隔热性能[J].土木与环境工程学报(中英文),2017,39(6):129-134. Gao Yafeng, Guo Rui, Xu Jiangmin, Zhuang Chaoqun, Xiang Ruiqi, Fan Dongye. Thermal insulation performance of high reflective coatings after natural aging[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2017,39(6):129-134.10.11835/j. issn.1674-4764.2017.06.018

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2017-04-07
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2017-11-02
  • 出版日期: