HOMEJournal of Daylighting
An international journal devoted to investigations of daylighting in buildings. It is the leading journal that publishes original research on all aspects of Energy, buildings, and lighting.
REVIEW ARTICLE
Daylight Enhancement Strategies for Historic Buildings: A Critical Review of
With the growing urgency to reduce carbon emissions in the built environment, enhancing daylight availability in historic buildings has become a critical and challenging task due to the required balance between environmental sustainability objectives and cultural heritage conservation principles.
Journal of Daylighting 13 (2026) 57-75
RESEARCH ARTICLE
Optimizing Window-to-Floor Ratio and Glazing for Daylight and
In tropical climates, where cooling loads dominate building energy use, minimizing cooling demand is particularly critical for achieving carbon neutrality in educational buildings while maintaining adequate daylight and visual comfort.
Journal of Daylighting 13 (2026) 44-56
RESEARCH ARTICLE
Comparative Analysis of Daylight and Visual Quality Across School Plan
Designing daylight-based spaces has gained increasing attention due to its numerous benefits and alignment with global sustainability standards. However, limited research has focused on how architectural layouts affect daylight distribution and visual quality, particularly in educational environments.
Journal of Daylighting 13 (2026) 20-43
RESEARCH ARTICLE
Effects of Urban Obstructions on Spatial Daylight Autonomy (sDA) and
The limited research on obstruction-driven daylight reduction continues to hinder efforts to optimize natural daylight in compact mid-rise residential buildings.
Journal of Daylighting 13 (2026) 1-19
RESEARCH ARTICLE
Integration of light well through generative design to achieve optimal
A case of urban densification in heritage towns like Pondicherry has led to deep-plan wall to wall layouts, where the depth of the plot is considerably more than its width and multi-storey buildings with limited access to day light and natural ventilation.
Journal of Daylighting 12 (2025) 548-560
RESEARCH ARTICLE
Design Optimization of Atrium Skylights for Enhanced Office Building Performance
The increasing demand for energy and the impact of climate change underscore the necessity of energy-efficient building designs. This study optimizes atrium skylights as a passive design solution for Yazd, Iran aiming to enhance thermal and visual comfort.
Journal of Daylighting 12 (2025) 520-547
RESEARCH ARTICLE
Parametric Exploration of Natural Lighting and Visual Comfort in Contemporary
The re-functioning of historical buildings frequently necessitates new additions. This is particularly relevant for historical buildings with open courtyards, where interventions often involve the installation of upper covers using contemporary materials and techniques This issue can become especially apparent in historical buildings that are completely enclosed with transparent materials, raising concerns about the greenhouse effect and its potential to compromise indoor comfort.
Journal of Daylighting 12 (2025) 506-519
RESEARCH ARTICLE
Multi-Criteria Optimization of Tubular Daylighting Devices for Classrooms in
In educational architecture, particularly in high-solar climates, achieving a balance between ample daylight and visual comfort is a significant challenge.
Journal of Daylighting 12 (2025) 491-505
RESEARCH ARTICLE
Multi-objective Optimization of Girih Tile Patterns and Colored Glass
Efficient energy use is vital in architecture, and the building envelope plays a key role in aesthetics, thermal comfort, energy efficiency, and natural lighting.
Journal of Daylighting 12 (2025) 441-467
REVIEW ARTICLE
Human Interaction with Urban Morphology under the Influence of Urban
Outdoor urban spaces are essential to residents’ well-being, yet their thermal comfort is increasingly compromised by urbanization and climate change. .
Journal of Daylighting 12 (2025) 468-490
RESEARCH ARTICLE
Evaluating the Impact of Lighting Conditions on Workers’ Safety and
Lighting is a key element of design that plays a significant role in affecting workers’ health and safety in industrial workspaces. Given the scarcity of scientific studies addressing visual environments in relation to workers health in industrial buildings, this field study was conducted to explore workers' responses to multiple lighting scenarios inside production halls on their occupational health and safety in six factories in Sadat City, Egypt. .
Journal of Daylighting 12 (2025) 420-440
RESEARCH ARTICLE
Evaluating Daylighting Performance of Parametric Mashrabiya in Mediterranean Climate: A
This study examines the daylighting performance of parametric Mashrabiya-inspired shading devices in a Mediterranean climate, aiming to enhance occupant comfort and visual performance.
Journal of Daylighting 12 (2025) 397-419
RESEARCH ARTICLE
Height-Responsive Balcony-Integrated Envelope Design for High-Rise Residential
Balconies function as essential shading elements within the building envelope, playing a critical role in regulating occupant comfort and energy efficiency.
Journal of Daylighting 12 (2025) 375-396
RESEARCH ARTICLE
EEG-Based Neurophysiological Responses to Classroom Window Views in Green
This study examines the neurophysiological responses of students to different classroom window views - forest, park, and city - within energy-efficient, green campus environments.
Journal of Daylighting 12 (2025) 359-374
RESEARCH ARTICLE
Enhancing Year-Round Thermal Comfort with Solar Control Films: A
Windows significantly contribute to thermal discomfort in high solar irradiance climates by allowing excessive heat gains and uneven indoor temperatures.
Journal of Daylighting 12 (2025) 343-358
RESEARCH ARTICLE
Design Alternatives of Light Shelves using Altmann Linkage
This paper proposes a novel new light shelf design with Altmann linkage using its kinetic principles: geometry and rotational angles. As previous studies explain a light shelf’s design in two ways: static and movable, the proposed one in this study has the potential to track the path of the sun due to its diagonal movement. .
Journal of Daylighting 11 (2024) 391-407
RESEARCH ARTICLE
Optimum Geometry of Double-skin Self-Shading Facade of Classrooms
The significant energy consumption in educational spaces worldwide and its environmental impact greatly influence the quality of space, learning levels, and student comfort.
Journal of Daylighting 11 (2024) 372-389
RESEARCH ARTICLE
Parametric Optimization Approach to Evaluate Dynamic Shading Within Double-Skin
This research aims to support the choice of an appropriate dynamic louver shading system (DL-SS) within double-skin facade insulated glazed units (DSF-IGUs) as a high-performance integrated window system (DSF-IGUs/DL-SS) that meets both thermal and energy performance via daylight availability under a tropical climate.
Journal of Daylighting 11 (2024) 349-371
RESEARCH ARTICLE
Artificial Neural Network to Predict Curvature Light Shelf Design Related
Energy Optimization in building design field now has been revolutionized due to AI and machine learning applications. Leveraging daylight to reduce artificial lighting consumption holds promise for significant energy savings, yet the nonlinear nature of daylight patterns poses challenges in prediction and optimization.
Journal of Daylighting 11 (2024) 334-348
RESEARCH ARTICLE
Investigation of the Effect of Parametric Patterned Façade and
Parametric design is one of the thriving contemporary architectural treatments that not only has an influence on the design of building envelopes but is capable of affecting the users physically and psychologically.
Journal of Daylighting 11 (2024) 312-333
RESEARCH ARTICLE
Analyzing Passive Design Retrofits using Pareto Front Optimization to Reduce
Buildings are one of the leading sources of carbon emissions in the world. Most of the carbon emissions are released during the operation phase of the building.
Journal of Daylighting 11 (2024) 290-311
RESEARCH ARTICLE
Tracker-less Sunlight Collection Apparatus, using an Array of Optical
The paper describes an array of optical cones as a potential configuration for tracker-less daylighting, without using an electro-mechanical tracker. Subsequently, a single optical cone is analyzed, mainly in terms of sunlight collection efficiency and acceptance angle, as a function of the cone's geometrical dimensions.
Journal of Daylighting 11 (2024) 279-289
RESEARCH ARTICLE
Analytical Study on Reducing the Heating Effects of Daylight and
Climate change is an environmental issue that is rapidly escalating due to the effects of global warming. The increase in carbon emissions, along with various human activities such as industrial processes, land use changes, and the reckless consumption of natural resources, are among the primary causes of global warming.
Journal of Daylighting 11 (2024) 268-278
RESEARCH ARTICLE
Optimising Daylighting Performance Through Side light with Passive Devise Design
Passive lighting design plays an important role in providing natural lighting to save electricity consumption in buildings. This study aims to investigate the performance of natural lighting and the potential of alternative designs through sidelights with 3 shading device models and light shelves with different sizes in north, west, east, and south orientations.
Journal of Daylighting 11 (2024) 247-267
RESEARCH ARTICLE
Daylight Enhancement Strategies Through Roof for Heritage Buildings
Enhancing daylighting in heritage buildings is a complex challenge that requires a delicate balance between preserving architectural integrity and improving visual comfort.
Journal of Daylighting 11 (2024) 234-246
RESEARCH ARTICLE
Investigation of daylight availability in university dining halls: A case
This study evaluates the availability of daylight inside a university’s dining halls over two days (one sunny and one cloudy) using light meters in real-life sittings. .
Journal of Daylighting 11 (2024) 216-233
RESEARCH ARTICLE
Energy efficiency in smart schools using renewable energy strategy
As smart schools increasingly rely on technology, achieving energy efficiency becomes crucial for cost reduction and sustainability. This study investigates energy efficiency strategies in smart schools, focusing on the integration of renewable energy technologies.
Journal of Daylighting 11 (2024) 203-215
RESEARCH ARTICLE
Synergistic Strategies: Comparing Energy Performance in Climate-Adaptive Building Envelopes
Climate change and improving building energy performance are significant contemporary concerns. Conversely, climate-adaptive building envelopes (CABEs) offer promising solutions to enhance structural performance amidst fluctuating environmental conditions.
Journal of Daylighting 11 (2024) 181-202
RESEARCH ARTICLE
Design Adjustments For Daylighting and Visual Comfort in a Classroom
This paper evaluates how design adjustments applied to roller shades and louvres (namely the height of the shadings head and the angles of the louvre slats) can improve their annual and spatial effectiveness to provide autonomous daylight levels, reduce daylight glare problems, and offer views outside.
Journal of Daylighting 11 (2024) 165-180
RESEARCH ARTICLE
Performance of Shading Against West Glass Facades to Optimise Daylight,
In tropical urban areas, the vertical facades of buildings often play a crucial role in capturing solar radiation and heat, especially for office buildings facing west during the afternoon.
Journal of Daylighting 11 (2024) 131-148
Join our Editorial Board
CVs should be submitted electronically to jd@solarlits.com.
Editorial Board
Prof. Önder Güler
Istanbul Technical University, Türkiye
Dr Paola Sansoni
CNR-INO, Italy
Prof. Yuehong Su
University of Nottingham, UK
Prof. Lambros T. Doulos
Hellenic Open University, Greece
Dr Ferdinando Salata
University of Rome, Italy
Dr Boon Han Lim
Universiti Tunku Abdul Rahman, Malaysia
Dr Arsenio Barbón
University of Oviedo, Spain
Prof Laura Bellia
University of Naples Federico II, Italy
Dr Canan Kandilli
Usak University, Turkey
Prof Umberto Berardi
Politecnico di Bari, Italy
Prof. Antonio Manuel Peña García
University of Granada, Spain
Dr Fabio Peron
IUAV University of Venice, Italy
Dr Valerio Roberto Maria LO VERSO
Politecnico di Torino (Polytechnic University of Turin), Italy
Dr Guiqiang Li
University of Science and Technology of China, China
Prof Francesco Asdrubali
University of Perugia, Italy
Dr Paula M. Esquivias
University of Granada, Spain
Dr Marina Bonomolo
University of Palermo, Italia
Wei Wang
Southeast University, 中国
Dr Rizki A. Mangkuto
Institut Teknologi Bandung, Indonesia
Dr Osama Mohamed Omar
University of Bahrain , Bahrain
Dr Vincenzo Costanzo
University of Catania, Italy
Dr. Francesca Fragliasso
University of Naples Federico II, Italy
Dr Hui Shen
Texas A&M University-Kingsville, USA
Dr Seyed Morteza Hosseini
Aalborg University, Denmark
Dr Hui Lv
Hubei University of Technology, China
Prof. BANU MANAV
Kadir Has University, Turkey
Alp Tural
Virginia Tech, USA
Dr. Francesco Nocera
Department of Civil Engineering and Architecture, University of Catania (ITALY), Italy
Omid Nematollahi
Isfahan University of Technology, South Korea
Dr Lim Yaik Wah
Universiti Teknologi Malaysia, Malaysia
RESEARCH ARTICLE
A New Trend for Indoor Lighting Design Based on A
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.
Journal of Daylighting 7 (2020) 137-153
RESEARCH ARTICLE
An Improvement to Calculation of Lighting Energy Requirement in the
Daylighting has a recognized potential for electric energy savings when is used as a complement for artificial lighting. This study reviews the comprehensive calculation method for lighting energy requirement in non-residential buildings introduced by the European Standard EN 15193: 2007 and investigates its feasibility in China.
Journal of Daylighting 1 (2014) 16-28
RESEARCH ARTICLE
Automatic vs Manual Control Strategy for Window Blinds and Ceiling
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.
Journal of Daylighting 6 (2019) 112-123
SHORT COMMUNICATION
No-Greenery Line and Greenery-View Factor, New Architectural Design
The paper proposes a new tool for evaluation of the degree of visual contact with the outdoor greenery, the Greenery-View factor (GV), intended to be easy to grasp and simple to use.
Journal of Daylighting 7 (2020) 282-286
RESEARCH ARTICLE
Comparative Study on Computer Simulation of Solar Shading Performance with
Current technological advancement and the requirement for sustainability-driven practices has birthed increased demands for accuracy in performance and assessment of energy consumption in the built environment.
Journal of Daylighting 8 (2021) 50-64
RESEARCH ARTICLE
Analysing the Daylighting Performance of the Main Prayer-hall in
This paper studies the daylighting quality of the indoor prayer-hall in The Great Upper Mosque of Hama city in Syria, highlighting this distinctive historical converted building that has been functioning as a mosque since the entry of Islam in the 6th century AD.
Journal of Daylighting 10 (2023) 153-172
RESEARCH ARTICLE
An Investigation-Based Optimization Framework of Thermal Comfort Analysis in
Optimization becomes more valuable when the optimal variables decision can consider sensitivity analysis. To get optimum results quickly, this study established a synthetic sensitivity analysis and multi-objective optimization approach, which is combined with an energy simulation framework characterized by parallel processing.
Journal of Daylighting 9 (2022) 48-63
RESEARCH ARTICLE
Optimization of Daylight Performance Based on Controllable Light-shelf Parameters
This study aims to achieve a balance of daylight availability in the work-plane environments of a fully glazed facade integrated with a light shelf system using an optimization procedure that can assist architects with assessing the daylighting performance of numerous design alternatives, and build-up the optimized design.
Journal of Daylighting 7 (2020) 122-136
RESEARCH ARTICLE
Improvement of Optical Performances Using the Hybrid CPV
Hybrid Concentrated Photovoltaics (HCPVs) are systems in which additional low-cost silicone solar cells are added to take advantage of the power generated by the diffuse radiation lost when using only multi-junction cells that work only with direct radiation.
Journal of Daylighting 7 (2020) 238-245
RESEARCH ARTICLE
Thermographic Mobile Mapping of Urban Environment for Lighting and Energy
The generation of 3D models of buildings has been proved as a useful procedure for multiple applications related to energy, from energy rehabilitation management to design of heating systems, analysis of solar contribution to both heating and lighting of buildings.
Journal of Daylighting 1 (2014) 8-15
RESEARCH ARTICLE
An Intelligent IoT-enabled Lighting System for Energy-efficient Crop
In this paper, an intelligent lighting instrumentation and automation system is presented with the objective of achieving high energy-efficiency in greenhouse supplemental lighting based on the Internet of Things (IoT) technology.
Journal of Daylighting 8 (2021) 86-99
RESEARCH ARTICLE
Development of a Machine-Learning Framework for Overall Daylight and
Application of machine learning methods as an alternative for building simulation software has been progressive in recent years. This research is mainly focused on the assessment of machine learning algorithms in prediction of daylight and visual comfort metrics in the early design stages and providing a framework for the required analyses.
Journal of Daylighting 8 (2021) 270-283
RESEARCH ARTICLE
A Combined Method for an Exhaustive Investigation of the Anidolic
Lighting quality in office environments is a broad concept that must be taken into account in the design stage to deliver comfortable spaces to reduce workers' stress.
Journal of Daylighting 8 (2021) 149-164
RESEARCH ARTICLE
The Effects of Orientation and Width of Space Between Buildings
Excessive heat in the high-rise urban fabric has contributed to pedestrian and occupants' discomfort. Establishing wind circulation in space with an environmentally compatible and optimal configuration is necessary to improve comfort in this region.
Journal of Daylighting 10 (2023) 99-116
RESEARCH ARTICLE
Daylighting Performance of Integrated Light Shelf with Horizontal Light Pipe
Tropical countries such as Malaysia receives a significant amount of daylight. The utilisation of this renewable resource in a high-rise office building leads to opportunities and challenges.
Journal of Daylighting 9 (2022) 83-96
RESEARCH ARTICLE
A First Approach to a New Index on Indoor Lighting
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).
Journal of Daylighting 6 (2019) 124-130
RESEARCH ARTICLE
Effect of window glazing on colour quality of transmitted daylight
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.
Journal of Daylighting 4 (2017) 37-47
RESEARCH ARTICLE
Optimization of Daylighting Design Using Self-Shading Mechanism in Tropical
Despite its potential, daylighting strategies in school classrooms in the tropical climate regions is little explored in the literature. The use of two-sided or bilateral daylight opening, as well as the self-shading mechanism using sloped walls, are currently seen as potential strategies to achieve good daylighting in tropical buildings.
Journal of Daylighting 9 (2022) 117-136
RESEARCH ARTICLE
The Effect of Sky View Factor on Air temperature in
Urban geometry is defined by the height, length, width, and distance of buildings, which affect the urban environment and its microclimate, especially a high-rise and high-density urban environment, such as Tehran.
Journal of Daylighting 6 (2019) 42-51
RESEARCH ARTICLE
Design and optical evaluation of a novel asymmetric lens-walled
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.
Journal of Daylighting 4 (2017) 26-37
RESEARCH ARTICLE
A Field-validated Multi-objective Optimization of the Shape and
This study aims to determine the optimum size of windows based on the window-to-floor ratio (WFR) for the main cardinal directions in Hot-summer Mediterranean (Csa) and Dry Summer Continental (Dsa) climates (Köppen–Geiger classification system) by carrying out a multi-objective optimization that relies on three dynamic metrics of Useful Daylight Illuminance (UDI-a (autonomous)), Daylight Autonomy (DA), and Annual Sunlight Exposure (ASE1000,250) in Radiance version 5.1..
Journal of Daylighting 7 (2020) 222-237
RESEARCH ARTICLE
Annual Performance Assessment of Complex Fenestration Systems in Sunny Climates
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.
Journal of Daylighting 2 (2015) 32-43
RESEARCH ARTICLE
Optical Analysis of a New Solar Distiller with Cylindrical Surface
In this paper, a new solar distiller floating on ocean with cylindrical surface concentrator and vertical gap evaporator is proposed for solving the problem of freshwater shortage in islands.
Journal of Daylighting 8 (2021) 100-109
REVIEW ARTICLE
Daylight Transport Systems for Buildings at High Latitudes
This paper is a literature study of daylight transport systems aiming at selecting the most appropriate ones for application at high latitudes. It is limited to the systems that transport light at a long distance from the façade and distribute it either in the building core or at a rear place in a room adjacent to the façade. .
Journal of Daylighting 6 (2019) 60-79
RESEARCH ARTICLE
Improvement of Daylight Factor Model for Window Size Optimization and
Based on a new approach for the prediction of the Daylight Factor (DF), using existing empirical models, this research work presents an optimization of window size and daylight provided by the glazed apertures component for a building located in a hot and dry climate.
Journal of Daylighting 8 (2021) 204-221