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Cool roofs in China: Policy review, building simulations, and proof-of-concept experiments

Author

Listed:
  • Gao, Yafeng
  • Xu, Jiangmin
  • Yang, Shichao
  • Tang, Xiaomin
  • Zhou, Quan
  • Ge, Jing
  • Xu, Tengfang
  • Levinson, Ronnen

Abstract

While the concept of reflective roofing 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. EnergyPlus 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, CO2, NOx, and SO2 savings in all hot-summer cities (Chongqing, Shanghai, Wuhan, and Guangzhou).

Suggested Citation

  • Gao, Yafeng & Xu, Jiangmin & Yang, Shichao & Tang, Xiaomin & Zhou, Quan & Ge, Jing & Xu, Tengfang & Levinson, Ronnen, 2014. "Cool roofs in China: Policy review, building simulations, and proof-of-concept experiments," Energy Policy, Elsevier, vol. 74(C), pages 190-214.
    • Handle: RePEc:eee:enepol:v:74:y:2014:i:c:p:190-214
    DOI: 10.1016/j.enpol.2014.05.036
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    References listed on IDEAS

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    1. Boixo, Sergio & Diaz-Vicente, Marian & Colmenar, Antonio & Castro, Manuel Alonso, 2012. "Potential energy savings from cool roofs in Spain and Andalusia," Energy, Elsevier, vol. 38(1), pages 425-438.
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    10. Tran, Ngoc M. & Burdejová, Petra & Ospienko, Maria & Härdle, Wolfgang K., 2019. "Principal component analysis in an asymmetric norm," Journal of Multivariate Analysis, Elsevier, vol. 171(C), pages 1-21.
    11. Tran, Ngoc Mai & Osipenko, Maria & Härdle, Wolfgang Karl, 2014. "Principal component analysis in an asymmetric norm," SFB 649 Discussion Papers 2014-001, Humboldt University Berlin, Collaborative Research Center 649: Economic Risk.
    12. Dong, Yan & Zou, Yanan & Li, Xiang & Wang, Fuqiang & Cheng, Ziming & Meng, Weifeng & Chen, Lingling & Xiang, Yang & Wang, Tong & Yan, Yuying, 2023. "Introducing masking layer for daytime radiative cooling coating to realize high optical performance, thin thickness, and excellent durability in long-term outdoor application," Applied Energy, Elsevier, vol. 344(C).
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    14. Eva Crespo Sánchez & David Masip Vilà, 2022. "Thermochromic Materials as Passive Roof Technology: Their Impact on Building Energy Performance," Energies, MDPI, vol. 15(6), pages 1-25, March.
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