Search results for "daylight autonomy"

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.
researchProduct

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
researchProduct

Modeling of light pipes for the optimal disposition in buildings

2019

A light pipe is an excellent solution to transport and distribute daylight into environments without or with little lighting, guaranteeing comfort inside the rooms. As stated in the literature, the evaluation of the performances of light pipes presents numerous complexities, making the work very difficult for technicians and designers. This study is aimed to present a methodology that is able to identify the potential of light pipes using indices such as daylight autonomy (DA), continuous daylight autonomy (DAc), and useful daylight illuminance (UDI). This paper presents an analysis of daylight obtained by several configurations of simple models of light pipes installed into a 5 &times

OptimizationControl and Optimizationdaylighting comfort020209 energy0211 other engineering and technologiesEnergy Engineering and Power Technology02 engineering and technologyDaylight indexdaylight autonomyLight pipelight pipe021105 building & constructionDaylighting comfort0202 electrical engineering electronic engineering information engineeringDaylightDAYSIMElectrical and Electronic EngineeringEngineering (miscellaneous)Daylight illuminanceDaylight autonomySettore ING-IND/11 - Fisica Tecnica AmbientaleRenewable Energy Sustainability and the EnvironmentIlluminanceAspect ratio (image)daylight indexLight pipesHorizontal position representationRadianceEnvironmental scienceVariable numberoptimizationEnergy (miscellaneous)Marine engineering
researchProduct