Solarlits - Open Access Energy Journals

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 solar energy and lighting.

ISSN: 2383-8701
Frequency: Bi-annual issues (articles published continuously throughout the year)
Year started: 2014
CiteScore^TM 2020: 2.3
SCImago Journal Rank (SJR) 2020: 0.36
Source Normalized Impact per Paper (SNIP) 2020: 0.771

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Articles

Phasor Method to Estimate Illuminances Due to Parallel Arrays of Light Sources

Direct horizontal illuminance along a calculation row due to two parallel arrays of large numbers of identical light sources behaves like a periodic signal with a sinusoidal pattern, which contains useful information for design purpose. This study aims to describe, verify, and discuss the theoretical concept on the superposition of direct horizontal illuminance from both arrays in such configurations, and how to extract the information using the phasor method.

Rizki A. Mangkuto, Atthaillah
Research article | 30 November 2020

Maximizing the Performance of Laser Cut Panel by Interaction of Ceiling Geometries and Different Aspect Ratio

The interaction between different ceiling geometries with laser cut panels (LCPs) is investigated using real experiments and computer simulations to maximize the daylight performance of the LCP. In addition, LCP with different aspect ratios (width to depth ratio) is studied using simulation with clear sky conditions in hot climate region.

Ahmed A. Freewan
Research article | 22 December 2014

Evaluation of Daylight Availability for Energy Savings

Dynamic daylight simulations are very useful instruments in daylighting design process. They allow an in depth analysis of indoor daylight availability levels and define if they are adequate to perform a particular visual task. Their results can be used to design shading devices or lighting control systems and compare different technical solutions.

Laura Bellia, Francesca Fragliasso, Alessia Pedace
Research article | 05 March 2015

Optimum Glazing Configurations for Visual Performance in Algerian Classrooms under Mediterranean Climate

Daylight quality and quantity in Algerian schools show serious problems in ensuring visual comfort of students and teachers. Some problems are due to window design, which leads to excessive amount of sunlight penetration into the classrooms. The consequences are glare and heat gain.

Mesloub Abdelhakim, Yaik-Wah Lim, Mohd Zin Kandar
Research article | 10 April 2019

Experimental Analysis of the Performance of Light Shelves in Different Geometrical Configurations Through the Scale Model Approach

Daylight plays a significant role in achieving energy saving and comfort in buildings. It is in accordance with the human circadian rhythms and allows the best visual conditions in work environments and residential buildings. Recently, numerous researchers have focused their attention on the performance of technological devices able to increase natural light availability in interior areas of buildings.

Paolo Zazzini, Alessandro Romano, Alessio Di Lorenzo, Valeria Portaluri, Alessandro Di Crescenzo
Research article | 03 March 2020

Solar Energy Gain and Space-Heating Energy Supply Analyses for Solid-Wall Dwelling Retrofitted with the Experimentally Achievable U-value of Novel Triple Vacuum Glazing

A considerable effort is devoted to devising retrofit solutions for reducing space-heating energy in the domestic sector. Existing UK solid-wall dwellings, which have both heritage values and historic fabric, are being improved but yet they tend to have meagre thermal performance, partly, due to the heat-loss through glazings.

Saim Memon, Philip C Eames
Research article | 07 February 2017

The Impact of Courtyard and Street Canyon Surroundings on Global Illuminance and Estimated UV Index in the Tropics

Exposing oneself to outdoor daylight in the morning can be healthy and harmful at the same time, due to the risk of ultraviolet exposure. The presence of surrounding buildings in the urban context may also influence the risk. This study aims to identify the impact of courtyard and street canyon surroundings of various size and heights on the peak time and values of global illuminances and ultraviolet index (UVI), for the case of a tropical city.

Rizki A. Mangkuto, Mochamad Donny Koerniawan, Beta Paramita
Research article | 24 August 2020

Lighting Energy Saving with Light Pipe in Farm Animal Production

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 light intensity, daylight autonomy (DA), and reduced electricity use for illumination can be achieved. In.

Hans von Wachenfelt, Vaia Vakouli, Alejandro Pacheco Diéguez’, Niko Gentile, Marie-Claude Dubois, Knut-Håkan Jeppsson
Research article | 08 September 2015

Economic and Energy Efficiency of Artificial Lighting Control Systems for Stairwells of Multistory Residential Buildings

The aim of the research is to determine the economic and energy efficiency usage of the artificial lighting control systems, with the help of astronomical relays and motion sensors, by various types of light sources for the stairwells (stair landings and staircases) of multistory residential buildings.

Vitalii Burmaka, Mykola Tarasenko, Kateryna Kozak, Viktor Khomyshyn, Nataliia Sabat
Research article | 13 April 2020

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

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 light can be beneficial to healthy older people.

Mariëlle P. J. Aarts, Janny C. Stapel, Toine A. M. C. Schoutens, Joost van Hoof
Research article | 04 May 2018