scholarly journals Natural Lighting in Historic Houses during Times of Pandemic. The Case of Housing in the Mediterranean Climate

2021 ◽  
Vol 18 (14) ◽  
pp. 7264
Author(s):  
Carmen Muñoz-González ◽  
Jonathan Ruiz-Jaramillo ◽  
Teresa Cuerdo-Vilches ◽  
Maria Dolores Joyanes-Díaz ◽  
Laura Montiel Vega ◽  
...  
Keyword(s):  
Psychological Impact ◽  
Well Being ◽  
Office Work ◽  
Domestic Spaces ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Heritage Buildings ◽  
Lighting Systems ◽  
Low Incidence ◽  
Working Day

The pandemic generated by the SARS-CoV-2 virus has led to a forced increase in the number of hours spent at home. In many cases, the lockdown situations, both in social and work terms, have meant that homes have suddenly also become workplaces. Based on all the indicators, this new relational scenario in the labor market displays a clear upward trend and is far from being a temporary situation. It is known that sunlight affects people’s circadian rhythm and that its reduction and even absence during this period of isolation has had a psychological impact on the population. This makes it necessary to reconsider the regulations applied in homes, in order to guarantee their habitability, given their recent widespread use as offices, as well as domestic spaces. In historic centers, the comprehensive renovations being carried out include improvements in energy efficiency and thermal comfort, which play a fundamental role. However, the energy consumption linked to artificial lighting and the quality of this lighting itself have remained in the background, as improvement strategies consist mainly in the replacement of incandescent or fluorescent lamps with LED lamps. Prior to the pandemic, the electric consumption of lighting systems accounted for 10–15% of the total, a figure which increased to 40–50% during the lockdown period. Aiming to improve people’s well-being while reducing energy expenditure on lighting, this article presents a quantitative approach to improving the levels of natural lighting in residential heritage buildings located in historic centers. According to data obtained from previous surveys of a sector of the population, homes built prior to 1950 were characterized by good natural lighting conditions and a very low incidence of health issues among occupants compared to contemporary homes. The objective was to quantify the circadian stimulus and lighting levels and to identify the areas or work areas in homes in order to optimize consumption related to lighting and to generate healthy and comfortable spaces. Results show that historic homes have enough naturally lit areas to perform office work during business hours. However, in the most unfavorable seasons, winter and autumn, it is necessary to use artificial lighting at the start and end of the working day.

scholarly journals Improving the energy efficiency of lighting systems by the use of solar radiation

2018 ◽  
Vol 70 ◽  
pp. 01013 ◽  
Author(s):  
Sławomir Sowa
Keyword(s):  
Energy Efficiency ◽  
Control System ◽  
Solar Radiation ◽  
Electric Power ◽  
Radiation Energy ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Systems Implementation ◽  
Lighting Intensity ◽  
Lighting Systems

The paper presents two ways of using the solar radiation to limit consumption of the electric power for lighting, i.e., increasing the energy efficiency of lighting systems. The solar radiation energy is a generally available type of renewable energy that to a large extent may influence a reduction in consumption of the electric power for lighting. Facilities designers and architects aim at ensuring the highest possible availability of natural lighting in rooms. Usually, lighting systems are not provided with an appropriate control system using the solar radiation. A lack of means for a correct control of the artificial lighting intensity is a factor hindering an improvement of the energy efficiency of the lighting systems. Implementation of the correct control system is possible when distribution of the lighting intensity in a room is known. The studies conducted in this area are a valuable source of information which can be used to develop control algorithms or determine optimum locations and parameters for installation of lighting fixtures. The second way for improving the energy efficiency of the lighting systems is a use of the solar radiation energy converted to the electric power to supply lighting systems.

scholarly journals The Impact of Modern Artificial Lighting on the Optimum Window-to-Wall Ratio of Residential Buildings in Jordan

2021 ◽  
Vol 11 (13) ◽  
pp. 5888
Author(s):  
Aiman Albatayneh ◽  
Haya Atieh ◽  
Mustafa Jaradat ◽  
Murad Al-Omary ◽  
Maha Zaquot ◽  
...  
Keyword(s):  
Energy Savings ◽  
Residential Buildings ◽  
Light Emitting Diode ◽  
Residential Building ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Residential Structures ◽  
Lighting Systems ◽  
Ashrae Standards ◽  
The Impact

Energy savings gained through natural lighting could be offset by the loss of energy through windows; therefore, the target of this study is to examine the effects of enhancing the efficiency of lighting systems on the optimum window-to-wall ratio (WWR) of Jordanian residential structures. This research proposes the hypothesis that the WWR of residential structures that contain artificial lighting systems with increased efficiency will be lower than buildings in which solar lighting is provided. The energy simulation tool, DesignBuilder, was used to simulate an intricate model showing a standard Jordanian residential building with a size of 130 m2. The study offers useful guidance regarding the optimum WWR for key decisionmakers when designing energy-efficient residential structures in the context of Jordan. By considering the balance between gains and losses in solar heat and light gain to exploit energy from solar sources with no reverse effects, while making comparisons between different WWR situations, the findings indicate that the typical WWR for residential structures in Jordan that have efficient Light Emitting Diode (LED) systems of lighting installed could be between 25% and 30%, which is lower than the highest WWR stipulated by the ASHRAE standards.

scholarly journals The Architectural Analysis of the Illuminance Level in the Workspace, Using Natural and Artificial Lighting in Graha Pena Building in Makassar, Indonesia

2021 ◽  
Vol 21 (1) ◽  
pp. 1-12
Author(s):  
Nurul Jamala ◽  
Ramli Rahim ◽  
Sharyzee Mohamad Shukri
Keyword(s):  
Energy Efficient ◽  
Descriptive Analysis ◽  
Building Design ◽  
Building Envelope ◽  
Natural Light ◽  
Architectural Analysis ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Work Area ◽  
Lighting Systems

Energy-efficient building design models are one of the factors that need to be considered in building planning. In the morning to evening, sunlight as a source of natural light can be used as a source of lighting in buildings. By utilizing natural light, it will reduce energy consumption in buildings. Air conditioning and lighting are important factors in designing energy efficient buildings. In this study, analyzing natural and artificial lighting at Graha Pena Makassar Building. The research method is quantitative by measuring and analyzing several workspaces that are directly and indirectly related to openings in the building envelope. statistical descriptive analysis, namely entering data into tables and graphs, then analyzing the level of illumination in the analyzed workspace. The research objective was to determine the level of illuminance in several workspaces with different orientations. How is the effect of natural light distribution on building orientation and how is the artificial lighting system at workspace in the Graha Pena Makassar. The results showed that the orientation of the building had an effect on the distribution of natural light into the space. The spatial orientation facing East has a higher distribution of natural light than that of the south. Workspaces that are not directly related to window openings in the building envelope are using artificial lighting systems in the form of lights. The workspace has uneven illumination levels in its work area, because the layout and placement of lighting points have not been well planned. The contribution of this research is a reference in designing a building facade design with an attractive appearance, and can maximize the use of solar energy as a source of natural lighting, while still paying attention to the visual comfort of space users.

PERANCANGAN CO-WORKING SPACE DENGAN PENDEKATAN BIOPHILIC DESIGN

AKSEN ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 32-43
Author(s):  
Selda Mishelie Lily ◽  
M.Y Susan ◽  
Freddy Handoko Istanto
Keyword(s):  
Well Being ◽  
Added Value ◽  
Nature Deficit Disorder ◽  
Natural Lighting ◽  
Biophilic Design ◽  
Positive Effects ◽  
Working Space ◽  
Lighting Systems ◽  
Human And Nature ◽  
Air Conditioning Systems

The increasing of Urbanization especially in urban area cause interaction between human and nature decreased, most of the time is spent in indoor especially office area. This phenomena has caused decreased of human well-being in physical and psychological. Decreased interaction between human and nature called Nature Deficit Disorder. Therefore is it suggested that office area using Biophilic Design approach. Biophilic Design can give positive aspects like increase productivity, reduce stress, mood booster, and many more. Intano | Co-work is a business that operates in the field of co-working space which is included in the category of offices. Intano | Co-work wants a co-working space that is comfortable and can attract visitors. So that by implementing biophilic design in the building of co-working space it can provide added value to the co-working space because biophilic design can provide positive effects including reducing stress, increasing concentration, and productivity for tenants and workers. Elements of biophilic design are applied using the guidelines of 14 elements of biophilic design compiled by Terrapin Bright Green. Biophilic design is applied through spatial planning, material use, lighting systems, and air conditioning systems. In this building, it has many openings as access to green areas. The building maximizes natural lighting and airing. Maximizing natural lighting is applied through the use of skylights while natural exposure by maximizing cross-ventilation. Keywords: Biophilic Design, Business Plan, Co-working space, Interior Architecture

Review of the Current State and Future Development in Standardizing Natural Lighting in Interiors

2018 ◽  
pp. 5-26 ◽  
Author(s):  
Stanislav Darula
Keyword(s):  
Human Life ◽  
Natural Light ◽  
Artificial Lighting ◽  
Computer Tools ◽  
Natural Lighting ◽  
Current State ◽  
Minimum Requirements ◽  
Life On Earth ◽  
Window Design

Three elements mainly wind, water and sun seemed to determine in ancient ages the basic phenomena of life on Earth. Architectural history documented the importance of sun influence on urban and building construction already in layouts of Mesopotamian and Greek houses. Not only sun radiation but especially daylight played a significant role in the creation of indoor environment. Later, in the 20th century, a search of interaction between human life in buildings and natural conditions were studied considering well­being and energy conscious design recently using computer tools in complex research and more detail interdisciplinary solutions. At the same time the restricted daytime availability of natural light was supplemented by more efficient and continually cheaper artificial lighting of interiors. There are two main approaches to standardize the design and evaluation of indoor visual environment. The first is based on the determination of the minimum requirements respecting human health and visibility needs in all activities while the second emphasizes the behaviour and comfort of occupants in buildings considering year­around natural changes of physical quantities like light, temperature, noise and energy consumption. The new current standardization basis for daylight evaluation and window design criteria stimulate the study of methodology principles that historically were based on the overcast type of sky luminance pattern avoiding yearly availability of sky illuminance levels. New trends to base the daylight standardization on yearly or long­term availability of daylight are using the averages or median sky illuminance levels to characterise local climatological conditions. This paper offers the review and discussion about the principles of the natural light standardization with a short introduction to the history and current state, with a trial to focus on the possible development of lighting engineering and its standards in future.

scholarly journals A Supervisory Control Strategy for Improving Energy Efficiency of Artificial Lighting Systems in Greenhouses

Energies ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 202
Author(s):  
Gianluca Serale ◽  
Luca Gnoli ◽  
Emanuele Giraudo ◽  
Enrico Fabrizio
Keyword(s):  
Control Strategy ◽  
Light Emitting Diode ◽  
Cost Savings ◽  
Energy Performance ◽  
Lighting System ◽  
Light Emitting ◽  
Artificial Lighting ◽  
Lighting Control ◽  
Lighting Systems ◽  
Power Densities

Artificial lighting systems are used in commercial greenhouses to ensure year-round yields. Current Light Emitting Diode (LED) technologies improved the system efficiency. Nevertheless, having artificial lighting systems extended for hectares with power densities over 50W/m2 causes energy and power demand of greenhouses to be really significant. The present paper introduces an innovative supervisory and predictive control strategy to optimize the energy performance of the artificial lights of greenhouses. The controller has been implemented in a multi-span plastic greenhouse located in North Italy. The proposed control strategy has been tested on a greenhouse of 1 hectare with a lighting system with a nominal power density of 50 Wm−2 requiring an overall power supply of 1 MW for a period of 80 days. The results have been compared with the data coming from another greenhouse of 1 hectare in the same conditions implementing a state-of-the-art strategy for artificial lighting control. Results outlines that potential 19.4% cost savings are achievable. Moreover, the algorithm can be used to transform the greenhouse in a viable source of energy flexibility for grid reliability.

scholarly journals Young adults’ coping strategies against loneliness during the COVID-19-related quarantine in Greece

2021 ◽  
Author(s):  
Adrianos Golemis ◽  
Panteleimon Voitsidis ◽  
Eleni Parlapani ◽  
Vasiliki A Nikopoulou ◽  
Virginia Tsipropoulou ◽  
...  
Keyword(s):  
Social Media ◽  
Young Adults ◽  
Social Responsibility ◽  
Coping Strategies ◽  
Online Survey ◽  
Adult Population ◽  
Psychological Impact ◽  
Well Being ◽  
Daily Routine ◽  
Cross Sectional

Summary COVID-19 and the related quarantine disrupted young adults’ academic and professional life, daily routine and socio-emotional well-being. This cross-sectional study focused on the emotional and behavioural responses of a young adult population during the COVID-19-related quarantine in April 2020, in Greece. The study was conducted through an online survey. A total of 1559 young adults, aged 18−30 years, completed Steele’s Social Responsibility Motivation Scale and the De Jong Gierveld Loneliness Scale, and answered questions about compliance with instructions, quarantine-related behaviours and coping strategies. According to the results, participants displayed a relatively high sense of social responsibility (M = 16.09, SD = 2.13) and a trend towards moderate feeling of loneliness (M = 2.65, SD = 1.62); young women reported significantly higher levels of loneliness than men. The majority complied with instructions often (46.4%) or always (44.8%). Significantly more women created a new social media account and used the social media longer than 5 h/day, compared with men. Resorting to religion, practicing sports and sharing thoughts and feelings about COVID-19 with others predicted higher levels of social responsibility; humour, practicing sports and sharing thoughts and feelings about COVID-19 with others predicted lower levels of loneliness. Conclusively, COVID-19 is expected to have a significant psychological impact on young adults. Currently, Greece is going through the second quarantine period. This study raises awareness about loneliness in young adults during the COVID-19-related quarantine and highlights the importance of developing online programmes, attractive to younger people, to nurture adaptive coping strategies against loneliness.

scholarly journals OP0082-PARE THE EFFECT COVID-19 HAS ON THE MENTAL HEALTH OF PEOPLE LIVING WITH RHEUMATIC DISEASES. FROM DATA TO INTERVENTIONS.

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 44-45
Author(s):  
S. Mingolla ◽  
A. Celano ◽  
M. Santopietro
Keyword(s):  
Mental Health ◽  
Rheumatic Diseases ◽  
Rare Diseases ◽  
Psychological Impact ◽  
Well Being ◽  
Total Sample ◽  
Support Service ◽  
Health Condition ◽  
National Association ◽  
The Impact

Background:Covid-19 has had an important impact on the mental health conditions of over 5 million Italians suffering from one of the over 150 rheumatic diseases. In order to understand the psychological impact of the Covid-19 emergency and the restrictions imposed to counter it, the Italian National Association of People with Rheumatic and Rare Diseases – APMARR APS launched the research “Living with a rheumatic pathology”.Objectives:Gather data directly from Italian patients about the impact of the COVID-19 and consequent restrictions on their mental health and feelings; evaluate the most effective intervention to be implemented to face the pandemic by Patients organization.Methods:A qualitative-quantitative survey was carried out through a questionnaire administered throughout the national territory to a sample of N = 1,001 people. The people invited to complete the questionnaire were women (55,9%) and men (44,1%), aged 18-85 years (age 18-41=26,7%; age 42-65=64%; age >65=9,3%) with at least one rheumatic pathology. The questionnaire was made up of 39 questions, of which 29 were closed and 10 were open. For the administration of the questionnaires, the CAWI (Computer Aided Web Interview) methodology of on-line survey was used. The 1,001 interviews were carried out from 7 to 14 August 2020.Results:More than 4 out of 10 people (total sample 44.2%; male 60%, female 35,7%; age 18-41=39,1%; age 42-65=45,9%; age >65 = 50%) declared that the emergency period has somehow caused a worsening of their health condition. People declared that the deterioration of their health is due to the emergency period for the following reasons: 1) Psychological: such as stress and anxiety: “Too much stress and anxiety made the symptoms worse.”; “The stress of the quarantine affected my problem”; “Insomnia. Nervousness. General ailments. Depression. Strong stress” 2) Inability to perform physiotherapy and motor activities due to the lockdown 3) Postponement of examinations, visits and checks 4) remote working, in some cases described as harmful for people’s mental and physical health: “Due to Covid19 I had to do remote working and I worked even 12 hours a day including holidays to the detriment of my family life”.Furthermore, from January 31, 2020 a significant increase emerged in communication problems with rheumatology specialist compared to the period before the emergency due to Covid-19. The sharp increase may be due to the situation of severe psychological stress to which also the doctors were subjected in the emergency phase: people could not find the comfort of being empathically listened to.Conclusion:The research shows that the most frequent symptoms among people with rheumatic diseases were depression and high levels of anxiety due to strong emotional stress. Psychological malaise caused direct effects in worsening the symptoms of rheumatic disease as well as other related effects, for example, insomnia. The forced isolation due to the lockdown has made people lack the social support that is fundamental for the psychological well-being especially for those suffering from some chronic pathology. Starting from the data collected, APMARR promptly activated a completely free psychological support service with 6 professional psychologists, two of them specialized in emergency psychology. The service is accessible online and is still going on for all who are not able to overcome the anxiety and fear related to the pandemic and its evolution. Thousands of accesses to the service have been measured to date.References:S Mingolla1, A Celano1, M Santopietro2[1]NATIONAL ASSOCIATION OF PEOPLE WITH RHEUMATIC AND RARE DISEASES - APMARR APS[2]WeResearch. Ricerche di marketingDisclosure of Interests:None declared

scholarly journals How can electric lighting contribute to human health and well-being?

2021 ◽  
Vol 53 (5) ◽  
pp. 515-522
Author(s):  
P Raynham
Keyword(s):  
Human Health ◽  
Psychological Impact ◽  
Health Benefits ◽  
Well Being ◽  
Health Problems ◽  
Starting Point ◽  
Electric Light ◽  
Health And Well Being ◽  
Hypothetical Explanation

Electric light in buildings may provide some health benefits; however, for most people these benefits are likely to be small. It is possible for electric lighting to cause health problems, if there is too little light or there is glare, but for the most part there is good guidance available and these problems can be avoided. The quality of the lit environment can have a psychological impact and this may in turn impact well-being. A starting point for this is perceived adequacy of illumination. Related lighting metrics are examined and a hypothetical explanation is suggested.

scholarly journals Worker Perspectives on Incorporating Artificial Intelligence into Office Workspaces: Implications for the Future of Office Work

2021 ◽  
Vol 18 (4) ◽  
pp. 1690
Author(s):  
Yoko E. Fukumura ◽  
Julie McLaughlin Gray ◽  
Gale M. Lucas ◽  
Burcin Becerik-Gerber ◽  
Shawn C. Roll
Keyword(s):  
Artificial Intelligence ◽  
Work Performance ◽  
Well Being ◽  
Office Worker ◽  
Office Work ◽  
Worker Performance ◽  
Workplace Environments ◽  
Learning Capabilities ◽  
Potential Benefits ◽  
Group Interviews

Workplace environments have a significant impact on worker performance, health, and well-being. With machine learning capabilities, artificial intelligence (AI) can be developed to automate individualized adjustments to work environments (e.g., lighting, temperature) and to facilitate healthier worker behaviors (e.g., posture). Worker perspectives on incorporating AI into office workspaces are largely unexplored. Thus, the purpose of this study was to explore office workers’ views on including AI in their office workspace. Six focus group interviews with a total of 45 participants were conducted. Interview questions were designed to generate discussion on benefits, challenges, and pragmatic considerations for incorporating AI into office settings. Sessions were audio-recorded, transcribed, and analyzed using an iterative approach. Two primary constructs emerged. First, participants shared perspectives related to preferences and concerns regarding communication and interactions with the technology. Second, numerous conversations highlighted the dualistic nature of a system that collects large amounts of data; that is, the potential benefits for behavior change to improve health and the pitfalls of trust and privacy. Across both constructs, there was an overarching discussion related to the intersections of AI with the complexity of work performance. Numerous thoughts were shared relative to future AI solutions that could enhance the office workplace. This study’s findings indicate that the acceptability of AI in the workplace is complex and dependent upon the benefits outweighing the potential detriments. Office worker needs are complex and diverse, and AI systems should aim to accommodate individual needs.

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