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Design and optical evaluation of a novel asymmetric lens-walled compound parabolic concentrator (ALCPC) integration with building south wall

Qingdong Xuan, Guiqiang Li, Gang Pei, Yuehong Su, Jie Ji

Research Article Solar concentrating system is an effective way of combing solar energy with the building to satisfy the needs besides of electricity and hot water, also includes building heating, refrigeration, dehumidification, which require higher quality heat source. This paper put forward a novel static incorpo ...

Published on 04 September 2017
http://dx.doi.org/10.15627/jd.2017.5

Quantitative Investigation Through Climate-based Daylight Metrics of Visual Comfort Due to Colorful Glass and Orosi Windows in Iranian Architecture

Seyed Morteza Hosseini, Masi Mohammadi, Alexander Rosemann, Torsten Schröder

Research Article There are several alternatives to passive strategies in the early stages of the design process including orientation, window to wall ratio, shading device, material and colour that affect occupants’ visual comfort. However, applying simple traditional principles such as using colorful glasses for wi ...

Published on 26 August 2018
http://dx.doi.org/10.15627/jd.2018.5

Exploring the Impact of Natural Light Exposure on Sleep of Healthy Older Adults: A Field Study

Mariëlle P. J. Aarts, Janny C. Stapel, Toine A. M. C. Schoutens, Joost van Hoof

Research Article Studies among people with dementia demonstrated that the sleep quality and rhythm improves significantly when people are exposed to ambient bright light. Since almost half of the healthy older people also indicate to suffer from chronic sleep disorders, the question arises whether ambient bright lig ...

Published on 04 May 2018
http://dx.doi.org/10.15627/jd.2018.2

Effect of window glazing on colour quality of transmitted daylight

Rajendra Dangol, Thijs Kruisselbrink, Alexander Rosemann

Research Article In this study, the colour quality of the daylight transmitted through different window glazing types is evaluated. The analysis considered four different types of window glazing: laminated, monolithic, coated and applied film glazing ranging in luminous transmittance from around 0.97 to <1. The spec ...

Published on 09 November 2017
http://dx.doi.org/10.15627/jd.2017.6

Journal of Daylighting

Journal of Daylighting is an international journal devoted to investigations of daylighting in buildings. It is the leading journal that publishes original research on all aspects of daylighting. The aim is to present cutting edge research aimed at reducing the electric lighting energy use in buildings and improving indoor environment.

ISSN: 2383-8701
Frequency: Bi-annual issues (articles published continuously throughout the year)
Year started: 2014

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Research Articles

Daylight utilization with light pipe in farm animal production: a simulation approach

Alejandro Pacheco Diéguez’, Niko Gentile, Hans von Wachenfelt, Marie-Claude Duboisba

Research Article Light pipes, which are complex optical systems, offer a passive way to bring daylight to deep buildings, such as agricultural buildings. However, the lack of reliable performance predictability methods for light pipes represents a major obstacle preventing their widespread use. This paper evaluates ...

Published on 08 January 2016
http://dx.doi.org/10.15627/jd.2016.1

Lighting Energy Saving with Light Pipe in Farm Animal Production

Hans von Wachenfelt, Vaia Vakouli, Alejandro Pacheco Diéguez’, Niko Gentile, Marie-Claude Dubois, Knut-Håkan Jeppsson

Research Article The Swedish animal production sector has potential for saving electric lighting of €4-9 million per year using efficient daylight utilisation. To demonstrate this, two light pipe systems, Velux® (house 1) and Solatube® (house 2), are installed in two identical pig houses to determine if the required ...

Published on 08 September 2015
http://dx.doi.org/10.15627/jd.2015.5

A Methodology to Link the Internal Heat Gains from Lighting to the Global Consumption for the Energy Certification of Buildings in Italy

Valerio R.M. Lo Verso, Guglielmina Mutani, Laura Blaso

Research Article This paper critically discusses the procedure prescribed by the Italian Technical Standards to account for the internal gains in the calculation of the energy performance indices for a building. This procedure is based on a tabular value set depending on the building usage only (e.g., 6 W/m2 for off ...

Published on 22 December 2014
http://dx.doi.org/10.15627/jd.2014.6