Analysis of diffuse irradiance from two parts of sky vault divided by solar meridian using portable spectral sky-scanner

被引：16

作者：

Komar, Ladislav ^{[1
]}

Rusnak, Anton ^{[2
]}

Dubnicka, Roman ^{[2
]}

机构：

[1] Slovak Acad Sci, Inst Construct & Architecture, Bratislava, Slovakia

[2] Slovak Univ Technol Bratislava, Fac Elect Engn & Informat Technol, Bratislava, Slovakia

来源：

SOLAR ENERGY | 2013年 / 96卷

关键词：

Spectral sky measurements; Diffuse solar radiation; Sky scanner; CIE sky standard; SURFACES;

D O I：

10.1016/j.solener.2013.07.003

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 self-constructed prototype of a portable sky scanner with calibrated spectroradiometer was used for scanning of the sky vault. Methodology widely used in daylight in combination with the spectral measurements in a broader range of the electromagnetic spectrum can improve calculations of incoming diffuse radiation usable in various electricity saving systems like light-transporting devices, building-integrated systems and with some limitations also PV panels. Determining sky radiance gradation and scattering indicatrix function based on CIE standard are applicable to some extent for computations of the immediate diffuse irradiance on the arbitrary inclined surfaces. Various sky conditions were considered with emphasis on different cloud coverage. Disadvantages of CIE sky standard and its applicability in partly cloudy conditions are discussed. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1 / 9

页数：9

共 9 条

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