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 2021: 2.6
SCImago Journal Rank (SJR) 2021: 0.33
Source Normalized Impact per Paper (SNIP) 2021: 1.06

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Articles

Automatic vs Manual Control Strategy for Window Blinds and Ceiling Lights: Consequences to Perceived Visual and Thermal Discomfort

A case study to evaluate the occupants' satisfaction in relation to two different control strategies (fully automatic and manual) for blind and ceiling lights use in cell offices was carried on in Trondheim, Norway. A group of 11 participants with varying age, gender, and ethnicity, used two test cells of a laboratory as a workspace primarily carrying out office tasks at a personal computer for a total of 19 calendar days.

Nicola Lolli, Alessandro Nocente, Johannes Brozovsky, Ruth Woods, Steinar Grynning
Research article | 19 November 2019

Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-Uniform Illumination

This study was performed in outdoor conditions to quantify the level of influence on the electrical performance of the Multi-junction (MJ) solar cells. It was discovered that non-uniform illumination on the solar cell could reduce the MJ electrical output by more than 40%.

Hashem Shatnawi, Abdulrahman Aldossary
Research article | 13 February 2020

Annual Performance Assessment of Complex Fenestration Systems in Sunny Climates Using Advanced Computer Simulations

Complex Fenestration Systems (CFS) are advanced daylighting systems that are placed on the upper part of a window to improve the indoor daylight distribution within rooms. Due to their double function of daylight redirection and solar protection, they are considered as a solution to mitigate the unfavorable effects due to the admission of direct sunlight in buildings located in prevailing sunny climates (risk of glare and overheating).

Chantal Basurto, Jérôme H. Kämpf, Jean-Louis Scartezzini
Research article | 09 October 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

A First Approach to a New Index on Indoor Lighting Comfort Based on Corneal Illuminance

In this study, the conditions of visual comfort were assessed in an indoor environment intended for students. For this reason, a transversal field survey was carried out in two libraries, one at the Sapienza University of Rome (Italy) and another at the University of Granada (Spain).

Ferdinando Salata, Iacopo Golasi, Antonio Peña-García, Virgilio Ciancio, Zahra Yousefi
Research article | 28 November 2019

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

Daylighting metrics: an approach to dynamic cubic illuminance

Advances in research work in the field of numerical analysis of daylight performance have generated in-depth knowledge on photometric measurements of daylight quality. Most dynamic metrics are based on illuminance, which is a two-dimensional concept insofar as it is concerned with the density of luminous flux incident at a point on a surface.

Juan Manuel Monteoliva, Ayelén Villalba, Andrea Pattini
Research article | 28 November 2018

Application of Different Circadian Lighting Metrics in a Health Residence

During the last three decades, various scientific researchers analysed the connection between natural elements and human life, both as far as well-being and productivity. This study simulates circadian lighting metrics on elderly occupants in a healthcare residence, with different types of metrics.

Nicola Busatto, Tiziano Dalla Mora, Fabio Peron, Piercarlo Romagnoni
Research article | 20 February 2020

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

Power Factor Correction of Compact Fluorescent and Tubular LED Lamps by Boost Converter with Hysteretic Control

Compact Fluorescent Lamps (CFLs) and Light-emitting Diode (LED) lamps have received wide acceptance in lighting applications during the last few years. However, without a power factor correction (PFC), the lamps reach a lagging power factor below 0.64 while the total harmonic distortion (THD) in the input current can be over 136%.

Javier Revelo-Fuelagán, John E. Candelo-Becerra, Fredy E. Hoyos
Research article | 02 April 2020

Development of Fresnel-based Concentrated Photovoltaic (CPV) System with Uniform Irradiance

Different designs have been presented to achieve high concentration and uniformity for the concentrated photovoltaic (CPV) system. Most of the designs have issues of low efficiency in terms of irradiance uniformity. To this end, we present a design methodology to increase irradiance uniformity over solar cell.

Irfan Ullah
Research article | 22 December 2014

Acrylic Panels Applications as Building Materials and Daylighting Devices

Enormous studies have been conducted to enhance the daylighting utilization in buildings either by direct lighting techniques, lighting reflection systems, lighting transporting systems, or by light tracking systems. The current research aims at evaluating acrylic panels as a light transmitting medium and studying their possible applications to bring natural light to inner spaces due to the lack of researches on acrylic sheets.

Rawan AlQudah, Ahmed Freewan
Research article | 12 December 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

A New Trend for Indoor Lighting Design Based on A Hybrid Methodology

Most power system planners are interested in the savings of electrical power consumption. Various references demonstrate that the highest consumed power is by the lighting systems standing around 19% of worldwide energy consumption. This article presents novel design methodology leading to maximizing revenue due to savings in electrical energy consumption through energy efficient installations.

Fathalla Selim, Samah Mohammed Elkholy, Ahmed Fahmy Bendary
Research article | 02 July 2020