Search results for " daylight factor"

showing 3 items of 3 documents

Sustainable lighting design through the analysis of spatial and time non-uniformities in natural lighting with the metric of the information theory

2014

The indoor visual comfort of subjects faced with indoor ambient lighting varies with the position of the subject and is not constant over time. Average performance indexes, such as the mean value of Daylight Factor and Daylight Autonomy, are commonly used to analyse lighting distribution. These indexes, however, don’t properly take into account either the spatial or the time distribution of values affecting the non-uniformity of environmental lighting. Indeed, these are limited to the definition of a mean value or to the assessment of time availability of daylighting. This paper examines spatial and temporal non-uniformities in indoor lighting as possible causes of discomfort for occupants.…

Settore ING-IND/11 - Fisica Tecnica AmbientaleInformation Theory Visual Comfort Daylight Factor Daylight Autonomy Lecture halls.
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RESEARCH ON MICROCLIMATE LIGHT CONDITIONS IN A SCHOLASTIC ENVIRONMENT, BASED ON ADAPTIVE MODEL

2010

This paper shows the results of a deep research, carried out on a scholastic setting and based on a questionnaire, to evaluate the light microclimate and the satisfaction degree of the users. Through simulations, we have previously identified a number of classrooms where the conditions could be critical, both in terms of over-lightning, glare and disrespected values (suggested by the current normative). The proposed method consist in using device-made-surveys, a simulation software and questionnaires submission to users of the studied rooms. The questionnaires, based on an adaptive model, has been developed to detect subjective data (place, visus…) and other information about the setting an…

Settore ING-IND/11 - Fisica Tecnica Ambientalevisual comfort daylight factor adaptive model light microclimate.
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Assessment of the Entropy of Spatial and Time Distributions of Rooms Daylighting: A Possible Tool for a Sustainable Design

2015

The indoor visual comfort of subjects faced with indoor ambient lighting varies with the position of the subject and is not constant over time. Average performance indexes, such as the mean value of Daylight Factor and Daylight Autonomy, are commonly used to analyse lighting distribution. These indexes, however, don’t properly take into account either the spatial or the time distribution of values affecting the non-uniformity of environmental lighting. Indeed, these are limited to the definition of a mean value or to the assessment of time availability of daylighting. This paper examines spatial and temporal non-uniformities in indoor lighting as possible causes of discomfort for occupants.…

Daylight factorEngineeringArchitectural engineeringInformation theoryLecture halls.Energy Engineering and Power TechnologyInformation theory;Visual comfort;Daylight factor;Daylight autonomy;Lecture hallsVisual comfortEnvironmental Science (miscellaneous)Building designInformation theorylcsh:TechnologyInformation theory Visual comfort Daylight factor Daylight autonomy Lecture hallslcsh:HD72-88lcsh:Economic growth development planningSustainable designEntropy (information theory)DaylightWater Science and TechnologyDaylight autonomySettore ING-IND/11 - Fisica Tecnica AmbientaleRenewable Energy Sustainability and the Environmentbusiness.industrylcsh:TProbabilistic logicDaylight factorLecture hallAmbient lightingbusinessJournal of Sustainable Development of Energy, Water and Environment Systems
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