| 1. |
- Altomonte, Sergio, et al.
(författare)
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Evaluating integrated lighting projects - A Procedure to Post-Occupancy Evaluation of Daylight and Electrical Lighting Integrated Projects
- 2021
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report presents tools for post-occupancy evaluation (POE) to evaluate indoor lighting of commissioned projects (‘case studies’) under a common framework. In this report, POE includes technical environmental assessment (TEA) and observer-based environmental assessment (OBEA). The framework proposed in this report evaluates four key aspects of the case study:1. Energy use (electrical lighting systems),2. Visual effects (Indoor lighting environment /photometry)3. Non-visual effects (circadian potential), and4. The user (subjective/surveys and observations)The report targets industry professionals, building designers, lighting designers, building managers, researchers and/or owners wishing to evaluate projects where lighting is supplied by a combination of electrical lighting, daylighting systems (e.g., fenestrations) and assisted technologies (e.g., smart sensors). The framework in this report makes available methods and procedures related to the evaluation of integrated lighting performance in residential and non-residential buildings and its impact on users, and it summarises and categorize methods and procedures in an accessible and industry-oriented language.The content of this document is based on methods and procedures used by participating experts in IEA SHC Task 61 for monitoring twenty-five worldwide integrated daylighting and electric lighting case studies. Since integrated lighting projects are different in type and scopes, the methods and procedures included in the framework do not follow a rigid protocol. Practitioners should use the framework to define the scope of POE monitoring in terms of the aims of the project, context, and resources available. The document is thus a toolbox for planning and executing the monitoring of their integrated lighting projects.
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| 2. |
- Altomonte, Sergio, et al.
(författare)
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Integrating daylighting and lighting in practice : Lessons learned from international case studies
- 2021
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report presents lessons learned from twenty-five worldwide real-life case studies implementing the integration of daylighting and electric lighting. The case studies were monitored with respect to energy use for lighting, visual performance, non-visual performance, and users’ satisfaction. The monitoring is largely based on field measurements, but it is also complemented with simulations and calculations where needed.The report is divided in two parts. The first part provides an overview of the case studies and the overall lessons learned. The second part provides factsheets for each of the case studies; the factsheets include details on the monitoring, results, and specific lessons learned.Based on the lessons learned from the case studies, this report concludes that:• The energy demand for lighting is drastically reduced thanks to the combined effect of more efficient light sources, advances in controls, and raised awareness in the integration of daylighting and electric lighting.• Integrative lighting is currently driving the innovation in lighting technology and wider implementation is expected as knowledge in the field of non-visual requirements for lighting expands.• However, the current integration of the integrative lighting concept with daylighting in practice is limited, which may result in significant energy rebound (increases).• Daylighting integration is of utmost importance for achieving quality beyond energy savings.• Integrated daylighting and electric lighting design is facing new challenges: questions connected with comfort and health are yet to be answered
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| 3. |
- Gentile, Niko, et al.
(författare)
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Literature review - Energy saving potential of user-centered integrated lighting solutions
- 2021
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report presents lessons learned from twenty-five worldwide real-life case studies implementing the integration of daylighting and electric lighting. The case studies were monitored with respect to energy use for lighting, visual performance, non-visual performance, and users’ satisfaction. The monitoring is largely based on field measurements, but it is also complemented with simulations and calculations where needed.The report is divided in two parts. The first part provides an overview of the case studies and the overall lessons learned. The second part provides factsheets for each of the case studies; the factsheets include details on the monitoring, results, and specific lessons learned.Based on the lessons learned from the case studies, this report concludes that:• The energy demand for lighting is drastically reduced thanks to the combined effect of more efficient light sources, advances in controls, and raised awareness in the integration of daylighting and electric lighting.• Integrative lighting is currently driving the innovation in lighting technology and wider implementation is expected as knowledge in the field of non-visual requirements for lighting expands.• However, the current integration of the integrative lighting concept with daylighting in practice is limited, which may result in significant energy rebound (increases).• Daylighting integration is of utmost importance for achieving quality beyond energy savings.• Integrated daylighting and electric lighting design is facing new challenges: questions connected with comfort and health are yet to be answered.
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| 4. |
- Scorpio, Michelangelo, et al.
(författare)
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Low-cost smart solutions for daylight and electric lighting integration in historical buildings
- 2021
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Ingår i: Proceedings of the 8th International Building Physics Conference. - : IOP Publishing. ; 2069
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Konferensbidrag (refereegranskat)abstract
- Research have shown that the correct integration of daylight and electric lighting reduces the energy use in buildings, while improving visual comfort. Smart shading systems, especially those electrically controlled, play an important role to control solar radiation. Similarly, smart and dimmable/tunable lighting can help to adjust the artificial light to the real users' needs. This paper presents preliminary results of an ongoing living lab study investigating how artificial lighting systems can be integrated with shading systems, placing human comfort at the heart of the study and yet saving energy. A manually controlled, commercial and low-cost smart system integrating two motorized shading devices and six dimmable LED luminaires with a different selection of CCT were installed in a private office in a historical building. Indoor and outdoor lighting conditions and energy consumption associated to the lighting system are constantly monitored to assess how the people use shading and lighting upon varying the boundary conditions.. Preliminary results highlight that users prefer to maximise daylight on the work plane as well as they generally use both shading and electric lighting systems in response to boundary conditions that cause serious discomfort.
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