Development of new daylight glare analysis methodology using absolute glare factor and relative glare factor

Suk, Jae Yong; Schiler, Marc; Kensek, Karen

doi:10.1016/j.enbuild.2013.04.020

Cited by 65 publications

(36 citation statements)

References 3 publications

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“…Even greater values were proposed in [101]. In the end, given the wide variability of these thresholds, in order to directly use absolute luminance values to evaluate glare, further investigation is required to ascertain how the correlation between luminance and glare perception by observers were obtained [99].…”

Section: Luminancementioning

confidence: 99%

“…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 . For this reason, DGP shows a stronger correlation with the user's response regarding glare perception [69].…”

Section: Discomfort Glare Probabilitymentioning

confidence: 99%

“…For this reason, DGP shows a stronger correlation with the user's response regarding glare perception [69]. Thus, according to Suk, Schiler [99], it would be the most appropriate metric to analyze absolute glare issues. However, a limitation of procedure is that it usually involves a lot more computation time and user effort compared to the simple analytic calculations required by most of the other glare indices [16].…”

Section: Discomfort Glare Probabilitymentioning

confidence: 99%

“…According to Suk, Schiler [99], the identification of the acceptable absolute luminance value of glare sources (as contrasted to the ratio of luminance of the source relative to the background) is the most critical issue when attempting to define an upper limit value of the glare factor for a particular glare scene. Moreover, there is no general agreement on such upper limit values.…”

Section: Luminancementioning

confidence: 99%

“…Therefore, the ratios themselves should vary depending on the room layout and luminance distribution [97]. Again, threshold values of contrast ratio vary, and it is difficult to determine which value should be used: according to Suk, Schiler [99], further investigation is required to ascertain whether luminance ratios alone can provide sufficient information to detect potential glare issues.…”

Section: Luminance Ratiomentioning

confidence: 99%

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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

325

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: Luminancementioning

confidence: 99%

Section: Discomfort Glare Probabilitymentioning

confidence: 99%