Solar energy potential on roofs and facades in an urban landscape

被引：277

作者：

Redweik, P. ^{[1
,2
]}

Catita, C. ^{[1
,3
]}

Brito, M. ^{[1
,3
]}

机构：

[1] Univ Lisbon, Fac Sci, Dept Geog Engn Geophys & Energy, P-1749016 Lisbon, Portugal

[2] Univ Lisbon, Ctr Geol, P-1749016 Lisbon, Portugal

[3] Univ Lisbon, Inst Dom Luiz, P-1749016 Lisbon, Portugal

来源：

SOLAR ENERGY | 2013年 / 97卷

关键词：

Urban landscape; Facades; Sky view factor; Solar radiation; Photovoltaic potential; RADIATION;

D O I：

10.1016/j.solener.2013.08.036

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A solar 3D urban model was developed for the calculation and visualisation of the solar energy potential of buildings, integrating the potential of roofs with that of facades. To assess this potential, a digital surface model (DSM) of the urban region was built from LiDAR data and a solar radiation model based on climatic observations was applied. A shadow algorithm was developed in order to calculate shadow maps and sky view factor both for roofs and facades at once. Direct and diffuse solar radiation was then obtained for each point on the ground, roof and facades with a spatial resolution of about 1 m and a time resolution of 1 h. This method was applied to a case study of the Campus of the University of Lisbon. Results show that the irradiation reaching facades is lower than that of the roofs, as expected, but due to the large areas concerned, facades have a significant impact on the solar potential of buildings in an urban area. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：332 / 341

页数：10

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