Radiance of the circumsolar and background parts of skydome for buildings under random obstructions
Radiance of the circumsolar and background parts of skydome for buildings under random obstructions
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随机障碍物下建筑物天幕环日和背景部分的辐射度
DOI:
10.1016/j.enbuild.2021.110796
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发表时间:
2021-02
影响因子:
6.7
通讯作者:
Yang Yanping
中科院分区:
文献类型:
--
作者:
Lou Siwei;Li Danny H. W.;Lun Isaac Y. F.;Huang Yu;Chen Wenqiang;Xia Dawei;Yang Yanping
The diffuse radiation on building envelopes can be essential to the thermal environment and the energy study of buildings. Because a part of the skydome can be obstructed irregularly in city environments, the diffuse radiance distribution over the skydome should be determined to evaluate the radiation accurately. In this study, this distribution is described by several representative sky directions to specifying the radiance variation features over the skydome, especially the attenuation around the sun. The irradiance of each sky element (normalized by the horizontal diffuse) is correlated to the routine global radiation and the solar altitude as an all-sky model for simple engineering uses. According to two sets of one-month field measurements (in different sites) of the vertical irradiance under irregular obstructions in the hot and humid Hong Kong, the coefficient of determination (R2) is 0.041 and 0.142 higher than the classical single-direction anisotropic diffuse model that is adopted by many simulation tools, and theR2difference can be up to 0.38 for partly cloudy days. When compared to the distribution models, theR2outperformance of the proposed model can still be 0.057. The proposed approach is thus effective to the solar radiation studies in the city environments.
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影响因子:
6.7
作者:
Liao Wei;Heo Yeonsook;Xu Shen
通讯作者:
Xu Shen
影响因子:
7.4
作者:
E. Brembilla;J. Mardaljevic
通讯作者:
E. Brembilla;J. Mardaljevic
DOI:
10.18086/eurosun2018.09.16
发表时间:
2018
期刊:
--
影响因子:
--
作者:
C. Gueymard;S. Ivanova
通讯作者:
C. Gueymard;S. Ivanova
DOI:
10.7498/aps.60.069601
发表时间:
2011-06
期刊:
--
影响因子:
--
作者:
Ma Jin-yu;Liang Hong;Luo Yong;Li Shi-kui
通讯作者:
Ma Jin-yu;Liang Hong;Luo Yong;Li Shi-kui
影响因子:
3.9
作者:
D. Bourgeois;C. Reinhart;G. Ward
通讯作者:
D. Bourgeois;C. Reinhart;G. Ward