Evaluation methods and development of a new glare prediction model for daylight environments with the use of CCD cameras

Wienold, Jan; Christoffersen, Jens

doi:10.1016/j.enbuild.2006.03.017

Cited by 762 publications

(541 citation statements)

References 7 publications

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“…Discomfort Glare Probability (DGP) is a short-term, local, one-tailed index assessing glare, which was introduced in [69] and validated in [20]. Its formulation is: The glare indices previously analyzed just focus on the contrast ratio between the background average luminance and the glare source luminance [99], DGP instead includes also an evaluation of the level of illuminance perceived by the observer by means of the term E v .…”

Section: Discomfort Glare Probabilitymentioning

confidence: 99%

“…More recently this approach has been complemented combining a modified glare index formula with the vertical eye illuminance evaluated in the same point, showing a stronger correlation with user's response regarding glare perception [20]. In fact, in exceedingly bright scenes, discomfort can be predicted even without significant visual contrast [98].…”

Section: Indices For Assessing Glarementioning

confidence: 99%

“…Maximum thresholds for luminance of the source of 2 000 nit in any point and between 500 and 2 000 nit for peripheral view are proposed in [91], and can be doubled if the glare source is natural light. Wienold and Christoffersen [20] proposed 2 000, 4 000 and 6 000 nit as thresholds for 'acceptable', 'just uncomfortable' and 'intolerable glare' respectively. Similarly, Shin, Yun [100] proposes 3 200, 5 600 and 10 000 nit respectively for the same three categories.…”

Section: Luminancementioning

confidence: 99%

“…Basically, glare indices are computed with equations that correlate luminance values, or luminance distributions in the observer's field of view, to human glare sensation. They have been traditionally developed through laboratory experiments with artificial glare sources and only recently also in day-lit spaces [20].…”

Section: Glarementioning

confidence: 99%

“…For only six indices, five dealing with glare and one with the light quantity, their authors have explicitly stated that they are developed from field measurements carried out in offices [20,[32][33][34][35] or office-like test chambers [36].…”

Section: Building's Intended Usementioning

confidence: 99%

See 4 more Smart Citations

A review of indices for assessing visual comfort with a view to their use in optimization processes to support building integrated design

Carlucci

Causone

Rosa

et al. 2015

Renewable and Sustainable Energy Reviews

334

156

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In the last decades, several studies aimed at assessing some specified aspects of visual comfort characterizing the relationship between the human needs and the light environment, such as an available amount of light, light uniformity, light quality in rendering colors, and predicting the risk of glare for space occupants. For each of them, a (still growing) number of indices and metrics have been proposed in literature and standards. In the present work, they are described, categorized according to common features, and finally discussed. As in the case of long-term thermal comfort indices, such visual comfort indices and their summation over a specified calculation period might be used for driving optimization processes to support a more conscious integrated design of buildings. To that purpose, the choice among the available visual comfort indices needs to be informed by an analysis of their features and implications. We present recommendations for use, and suggest areas where improvement is needed for their use in optimization processes to support buildings' design.

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Section: Discomfort Glare Probabilitymentioning

confidence: 99%

Section: Indices For Assessing Glarementioning

confidence: 99%

Section: Luminancementioning

confidence: 99%

Section: Glarementioning

confidence: 99%

Section: Building's Intended Usementioning

confidence: 99%

See 3 more Smart Citations

A review of indices for assessing visual comfort with a view to their use in optimization processes to support building integrated design

Carlucci

Causone

Rosa

et al. 2015

Renewable and Sustainable Energy Reviews

334

156

View full text Add to dashboard Cite

show abstract

Correlations between building performances and design parameters of double‐skin facade utilizing perforated screen

Srisamranrungruang

Hiyama

2021

Japan Architectural Review

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This study investigates the effect of a perforated sheet combined with a doubleskin facade (DSPF) by varying the important building parameters, such as perforation percentage, facade orientation, and the thickness of the double-skin facade (DSF). This study determines the energy-saving, natural ventilation, and daylight performance of an office building in Tokyo, Japan by conducting simulations. This study discovers that the DSPF thickness does not influence the performances much and the DSPF thickness of 0.5 m is recommended. For daylighting, the system with the 40% perforation percentage on the south and 10% perforation percentage on the west is the best case of daylight access without disturbing glare in the particular view of this study. To balance natural ventilation and daylight when installing perforated screens, this research demonstrated the net heat removal in spring when the perforated percentage of 50% on the south and 30% on the west is recommended. In autumn, the net heat removal when the perforated percentage of 10% on the south and 30% on the west is recommended. This research demonstrated that the total net heat removal when the perforated percentage of 10% on the south and 30% on the west are recommended for removing heat throughout a year.

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Comfort considerations in Net ZEBs: theory and design

Carlucci

Pagliano

O’Brien

et al. 2015

Modeling, Design, and Optimization of Net‐Zero Energy Buildings

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Evaluation methods and development of a new glare prediction model for daylight environments with the use of CCD cameras

Cited by 762 publications

References 7 publications

A review of indices for assessing visual comfort with a view to their use in optimization processes to support building integrated design

A review of indices for assessing visual comfort with a view to their use in optimization processes to support building integrated design

Correlations between building performances and design parameters of double‐skin facade utilizing perforated screen

Comfort considerations in Net ZEBs: theory and design

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