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Energy saving analysis of a transparent radiative cooling film for buildings with roof glazing

能源与人工环境(英文) 2021年第2期2卷 214-222页

作者： Zhitong Yi Yingyan lv Dikai Xu Jingtao Xu Hua Qian Dongliang Zhao Ronggui Yang Ningbo Ruiling Advanced Energy Materials Institute Co. LtdNingbo 315500China School of Energy and Environment Southeast UniversityNanjing 210096China Engineering Research Center of Building Equipment Energyand EnvironmentMinistry of EducationChina School of Energy and Power Engineering Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Coal Combustion Huazhong University of Science and TechnologyWuhan 430074China

A transparent radiative cooling(T-RC)film with low transmittance in solar spectra and selectively high emissivity in the atmospheric window(8-13𝜇m)is applied on roof glazing for building energy *** evaluate the per-formance of the T-RC film,two identical model boxes(1.0 m×0.6 m×1.2 m,L×W×H)were constructed and the inside air temperatures were measured in August in Ningbo,*** show that the maximum temperature difference between the two model boxes with and without the T-RC film was 21.6℃during the experiment.A whole building model was built in EnergyPlus for the model *** a good agreement achieved between the calculation results and the measured temperature data,the experimentally validated EnergyPlus model was then extended to an 815.1 m^(2)exhibition building with roof glazing to analyze the annual air conditioning(AC)energy *** results show that by incorporating both the T-RC film’s cooling benefit in summer and heating penalty in winter,the annual AC energy consumption of the exhibition building can be reduced by 40.9-63.4%,varying with different climate conditions.

关键词： transparent radiative cooling film Spectrum selective Window film Building energy saving

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