OPTICAL UTILIZATION FACTOR FOR ARCHITECTURAL LIGHTING

被引：3

作者：

Galatanu, Catalin Daniel ^{[1
]}

Ashraf, Muhammad ^{[2
]}

Lucache, Dorin Dumitru ^{[1
]}

Beu, Dorin ^{[3
]}

Ciugudeanu, Calin ^{[3
]}

机构：

[1] Tech Univ Gh Asachi, Iasi, Romania

[2] CUST, Islamabad, Pakistan

[3] Tech Univ Cluj Napoca, Cluj Napoca, Romania

来源：

LIGHT & ENGINEERING | 2019年 / 27卷 / 06期

关键词：

luminance gain; concave inter-reflections; luminance measurements; mesh generation; POLLUTION;

D O I：

10.33383/2017-101

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Optical utilization factor (OUF) is applied to architectural lighting, searching to obtain low light pollution. It is demonstrated that OUF could not be used for the assessment of light pollution, because the inter-reflections could not be neglected. DIALUX simulations and MATLAB original functions are used. Onsite measurements for illuminance and luminance are performed. It is demonstrated that OUF could be greater than one for the facade. For the small scale inter-reflections, a luminance gain is demonstrated. Due to this, the floodlighting could be reduced. The understanding about the light pollution assessment is changed, which is a major achievement. It means that a greater OUF don't represent a lower light pollution, and also a facade could be more "visible" on lower level of floodlighting.

引用

页码：49 / 57

页数：9

共 12 条

[1]

[Anonymous], LIGHT ENG

[2]

Contel T. M., 2016, European Journal of Science and Mathematics Education, V4, P129, DOI [https://doi.org/10.30935/scimath/9459, DOI 10.30935/SCIMATH/9459]

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