<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Results of daylight illuminance measurements of the field testing of two light guides with different roof installations is presented in the article. The first one is a common tubular system with a glass roof dome and the second one is a new light guide prototype with a concentrator head. The daylight illuminance was measured in a test chamber with the light guides installation. The measurements were carried out at the end of a summer season from August to September 2017. The measured data show differences in the daylight illuminance of the two tested light guides. The measured data were compared with simulation outputs in software Holigilm. In summary, it was found that the common light guide is about 37 percentage more efficient in light transmittance compared to the new light guide prototype. In temperate climate with dominant cloudy and partly cloudy daylight conditions the common light guide transmitted more light that the device with the concentrator head which reduced light transmission much more.</p></abstract>

Results of daylight illuminance measurements of the field testing of two light guides with different roof installations is presented in the article. The first one is a common tubular system with a glass roof dome and the second one is a new light guide prototype with a concentrator head. The daylight illuminance was measured in a test chamber with the light guides installation. The measurements were carried out at the end of a summer season from August to September 2017. The measured data show differences in the daylight illuminance of the two tested light guides. The measured data were compared with simulation outputs in software Holigilm. In summary, it was found that the common light guide is about 37 percentage more efficient in light transmittance compared to the new light guide prototype. In temperate climate with dominant cloudy and partly cloudy daylight conditions the common light guide transmitted more light that the device with the concentrator head which reduced light transmission much more.

Light Pipe Comparative Study

Faculty of Civil Engineering, Institute of Building Structures

Selected Scientific Papers - Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Light Pipe Comparative Study"}

Results of daylight illuminance measurements of the field testing of two light guides with different roof installations is presented in the article. The first...

Light Pipe Comparative Study

Published Online: Dec 31, 2019

Page range: 17 - 26

DOI: https://doi.org/10.1515/sspjce-2019-0002

Keywords
light guide, light measurements, daylight evaluations

© 2019 Ayodeji Omishore et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Light Pipe Comparative Study

Published Online: Dec 31, 2019

Page range: 17 - 26

DOI: https://doi.org/10.1515/sspjce-2019-0002

Keywordslight guide, light measurements, daylight evaluations

© 2019 Ayodeji Omishore et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
light guide, light measurements, daylight evaluations