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首页> 外文期刊>Energy Policy >Cool roofs in China: Policy review, building simulations, and proof-of-concept experiments
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Cool roofs in China: Policy review, building simulations, and proof-of-concept experiments

机译：中国凉爽的屋顶：政策审查，建筑模拟和概念验证实验

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摘要

While the concept of reflective rooSng is not new to China, most Chinese cool roof research has taken place within the past decade. Some national and local Chinese building energy efficiency standards credit or recommend, but do not require, cool roofs or walls. EnergyPIus simulations of standard-compliant Chinese office and residential building prototypes in seven Chinese cities (Harbin, Changchun, Beijing, Chongqing, Shanghai, Wuhan, and Guangzhou) showed that substituting an aged white roof (albedo 0.6) for an aged gray roof (albedo 0.2) yields positive annual load, energy, energy cost, CO_2, NO_x and SO_2 savings in all hot-summer cities (Chongqing, Shanghai, Wuhan, and Guangzhou). Measurements in an office building in Chongqing in August 2012 found that a white coating lowered roof surface temperature by about 20 ℃, and reduced daily air conditioning energy use by about 9%. Measurements in a naturally ventilated factory in Guangdong Province in August 2011 showed that a white coating decreased roof surface temperature by about 17 ℃, lowered room air temperature by 1-3 ℃, and reduced daily roof heat flux by 66%. Simulation and experimental results suggest that cool roofs should be credited or prescribed in building energy efficiency standards for both hot summer/warm winter and hot summer/cold winter climates in China.
机译：尽管反射式rooSng的概念在中国并不陌生，但大多数中国凉爽屋顶研究已在过去十年中进行。一些国家和地方的中国建筑节能标准认可或推荐但不要求冷却屋顶或墙壁。在七个中国城市（哈尔滨，长春，北京，重庆，上海，武汉和广州）对符合标准的中国办公和住宅建筑原型进行的EnergyPIus仿真显示，用陈年的白色屋顶（反照率0.6）代替了陈年的灰色屋顶（反照率） 0.2）在所有炎热的夏季城市（重庆，上海，武汉和广州）产生正的年负荷，能源，能源成本，CO_2，NO_x和SO_2节省量。 2012年8月在重庆的一栋办公楼中进行的测量发现，白色涂层将屋顶表面温度降低了约20℃，并将每日空调能耗降低了约9％。 2011年8月在广东省的一家自然通风工厂进行的测量表明，白色涂层使屋顶表面温度降低了约17℃，使室内空气温度降低了1-3℃，并使屋顶日热通量降低了66％。仿真和实验结果表明，在中国炎热的夏季/温暖的冬季和炎热的夏季/寒冷的冬季，建筑能效标准应考虑或规定凉爽的屋顶。

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  • 来源
    《Energy Policy》 |2014年第11期|190-214|共25页
  • 作者

    Yafeng Gao; Jiangmin Xu; Shichao Yang; Xiaomin Tang; Quan Zhou; Jing Ge; Tengfang Xu; Ronnen Levinson;

  • 作者单位

    Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Faculty of Urban Construction and Environmental Engineering, Chongqing University, 400044 Chongqing, PR China;

    Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Faculty of Urban Construction and Environmental Engineering, Chongqing University, 400044 Chongqing, PR China;

    Guangdong Provincial Academy of Building Research, 510500 Guangzhou, PR China;

    Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Faculty of Urban Construction and Environmental Engineering, Chongqing University, 400044 Chongqing, PR China;

    Guangdong Provincial Academy of Building Research, 510500 Guangzhou, PR China;

    Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90R2000, Berkeley, CA 94720, USA;

    Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90R2000, Berkeley, CA 94720, USA;

    Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90R2000, Berkeley, CA 94720, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cool roofs; China; Building energy efficiency standards; Energy savings; Emission reductions;

    机译：凉爽的屋顶;中国;建筑节能标准;节约能源;减少排放;

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