Overview and new developments in optical daylighting systems for building a healthy indoor environment

Kim, Jeong Tai; Kim, Gon

doi:10.1016/j.buildenv.2009.08.024

Cited by 122 publications

(74 citation statements)

References 21 publications

(20 reference statements)

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“…Previous researches shows that more effort took in first and second phase, but the improvement is limited and requires high "well-index" that cannot be achieved in the conventional urban context (Faizi, et al, 2016). The findings demonstrate that the third phase (utilization of IDS) in theory has high potential but it needs more researches (Kim and Kim, 2010).…”

Section: Light Well Improvement Approachesmentioning

confidence: 92%

“…Review indicates that context-orientation is one of the most important attributes of systems. Hence, a quantitative estimation of systems performance does not necessarily prove their success (Kim and Kim, 2010). The investigations carried out in this step showed that parameters other than quantitative estimation are involved in the building-IDS interaction (Faizi, et al, 2016).…”

Section: Innovative Daylighting Systems (Ids)mentioning

confidence: 99%

“…The glare caused by the secondary mirror affects the interior visual quality. Moreover, the visual interference of the secondary mirror with the window view is another issue with this system (Kim and Kim, 2010).…”

Section: ) Continuous Emittersmentioning

confidence: 99%

“…Glare varies by Emission technology (Kim and Kim, 2010).  Daylight distribution over the interior space: This criterion reflects uniformity of the light distributed in the space.…”

Section: Lighting Performancementioning

confidence: 99%

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Integration Issues for Using Innovative Daylighting Strategies in Light Wells

Gashniani

Saradj

Faizi

2017

Journal of Applied Engineering Sciences

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ABSTRACT:"Light well" as one of the most common means of daylight tolls in building, experiences severe limitations and deserve special attention. The question is which strategy is the best for increasing the daylight penetration to the depth of buildings. One of the main challenges in deep plan is to guide daylight into the building core and this can be performed through daylighting strategies, but the choice of the proper innovative daylighting system (IDS) with several parameters is the problem. This paper aims to find elements for optimal choice and selecting context-compatible tools for light well. The result shows that four macro factors were found at the interaction of building and IDS. Identifying the integration components can play an effective role in decision-making or design a new tolls consistent with the physical conditions of light well and building to overcome the daylight crisis. * Corresponding author. Fatemeh Mehdizadeh SARADJ, mehdizadeh@iust.ac.ir

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Section: Light Well Improvement Approachesmentioning

confidence: 92%

Section: Innovative Daylighting Systems (Ids)mentioning

confidence: 99%

Section: ) Continuous Emittersmentioning

confidence: 99%

“…Glare varies by Emission technology (Kim and Kim, 2010).  Daylight distribution over the interior space: This criterion reflects uniformity of the light distributed in the space.…”

Section: Lighting Performancementioning

confidence: 99%

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Integration Issues for Using Innovative Daylighting Strategies in Light Wells

Gashniani

Saradj

Faizi

2017

Journal of Applied Engineering Sciences

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“…Vertical systems collect daylight at the roof level using static or tracking optical components (such as parabolic mirrors or heliostats) and transport the daylight in vertical hollow light guides passing through building floors. Several installations have been constructed around the world (Aizenberg, 2010;Kim and Kim, 2010;Rosemann and Kaase, 2005), but the high costs of these systems have limited their market penetration. Horizontal systems, on the other hand, are mounted on the building façades, and employ horizontal hollow light guides.…”

Section: Introductionmentioning

confidence: 99%

The energy performance of the Central Sunlighting System

Laouadi

Coffey

2012

Journal of Building Performance Simulation

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10. 1080/19401493.2011.558632 Journal of Building Performance Simulation, pp. 1-14, 2011-04-12 Energy performance of the Central Sunlighting System Laouadi, A.; Coffey, B. Ene rgy pe rfor m a nc e of t he Ce nt ra l Sunlight ing Syst e m NRCC-53616Laouadi, A.; Coffey, B. 2011-01-31A version of this document is published in / Une version de ce document se trouve dans:Journal of Building Performance Simulation, pp.1-14, April, 2011 http://dx.doi.org/10. 1080/19401493.2011.558632 http://www.nrc-cnrc.gc.ca/ircThe material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. 57% for lighting, 8% for cooling, and from 14% to 23% for the total (lighting, cooling, and heating) energy.2

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Kirigami/Origami‐Based Soft Deployable Reflector for Optical Beam Steering

Wang

Rodrigue

et al. 2017

Adv Funct Materials

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The beam steering mechanism has been a key element for various applications ranging from sensing and imaging to solar tracking systems. However, conventional beam steering systems are bulky and complex and present significant challenges for scaling up. This work introduces the use of soft deployable reflectors combining a soft deployable structure with simple kirigami/origami reflective films. This structure can be used as a macroscale beam steering mechanism that is both simple and compact. This work first develops a soft deployable structure that is easily scalable by patterning of soft linear actuators. This soft deployable structure is capable of increasing its height several folds by expanding in a continuous and controllable manner, which can be used as a frame to deform the linearly stretchable kirigami/origami structures integrated into the structure. Experiments on the reflective capability of the reflectors are conducted and show a good fit to the modeling results. The proposed principles for deployment and for beam steering can be used to realize novel active beam steering devices, highlighting the use of soft robotic principles to produce scalable morphing structures.

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Overview and new developments in optical daylighting systems for building a healthy indoor environment

Cited by 122 publications

References 21 publications

Integration Issues for Using Innovative Daylighting Strategies in Light Wells

Integration Issues for Using Innovative Daylighting Strategies in Light Wells

The energy performance of the Central Sunlighting System

Kirigami/Origami‐Based Soft Deployable Reflector for Optical Beam Steering

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