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Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik 1 DAYLIGHTING ANALYSIS www.interactivearchitecture.org/lightmodulator- nick-rich.html

DAYLIGHTING ANALYSIS

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DAYLIGHTING ANALYSIS. www.interactivearchitecture.org/lightmodulator-nick-rich.html. Generic Design/Analysis Methods (applicable to all sorts of systems). Rules/patterns/precedents - PowerPoint PPT Presentation

Text of DAYLIGHTING ANALYSIS

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *DAYLIGHTINGANALYSISwww.interactivearchitecture.org/lightmodulator-nick-rich.html

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Spring 2010 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Generic Design/Analysis Methods(applicable to all sorts of systems)Rules/patterns/precedentsSimple to use; little input information is required; results have limited accuracy; these methods are typically used to establish best first movesFirst principlesLooking to the laws of physics for analysis procedures; very difficult for complex systems due to numerous interactions between variablesCorrelation methodsPotentially complex, but still relatively simple to use; some specific input information is required (namely, the correlating parameters); can give fair accuracy; typically used to refine first design moves

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Generic Design/Analysis MethodsDigital simulation methodsNumbers-based using computer software; simulations may use correlations or first principles; lots of specific input information is required; accuracy can be exceptional (or notremember the junk in, junk out rule); historically used as a design refinement tool, but there is a trend toward earlier use

    Analog methodsObject-based using scale models; the extent of required input information varies with the accuracy desired; accuracy can be great (and is a direct function of model accuracy); can be used as both a first-moves and as a design-refinement tool

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Getting Started Daylighting Prediction MethodsThe 2.5H ruleThis empirical rule predicts that useful daylight will penetrate a space to a distance of 2.5 times the height (H) of a window (above the work plane)assuming a window width of about 50% of the wall width and an overcast sky (the sky type may not be critical, however, as this is a rough rule)

    The 15/30 ruleSuggests that a 15-foot-deep zone from a window (wall plane) will receive adequate daylight for office work, the next 15 feet (to 30 feet total) will receive some daylight (to be supplemented with electric lighting), after 30 feet there is not much daylighting

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Tweaking Daylighting Prediction MethodsRough estimationsFor sidelighting DFaverage = 0.2 (window area/floor area)DFminimum = 0.1 (window area/floor area) For toplightingClerestory DFaverage = 0.2 (glazing area/floor area)Horizontal skylightDFaverage = 0.5 (skylight area/floor area)as with all such estimates, a reasonable design layout is assumedcompare thesetwo results

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *More Refined DaylightingPrediction/Validation MethodsBRS daylighting protractors (consisting of drawing overlays)CIE method (involving many charts)IES lumen method (similar to the zonal cavity method used with electric lighting)Computer simulations (many programs are available)Physical models (Assignment Three)

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *BRS ProtractorsBuilding Research Station (UK)for overcast sky conditionsdaylighting units are read off overlays,rarely used in the US, but the graphicapproach can inform design (see next slide)these are transparent overlays that are used in conjunction with plan and section drawings

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *BRS Protractorsnote that this approach graphically defines the extent of sky resourcesavailable at a given point within a building

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *CIE Method (Charts)inputoutputCIE (Europe)for overcast sky conditionsDF is read from chartrarely used in the US

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *CIE Method vs. LEED & 2.5Hnote that a 60% window area, in a 30 foot wide room, with a room depthof 2.5 H yields an initial 2% minimum DF (as required by LEED-NC 2.1)

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *IES Lumen (Daylighting) MethodIESNA (from L-O-F) (USA) -- obsoleteovercast sky conditions?this method is similar to a commonly used electric lighting design method

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *DaylightingSoftwarenumerous software packages are readily availablefor overcast and clear sky conditionselectric light integration usually includedearly example of daylighting software

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Daylighting SoftwareEcotect (now part of AutoDesk)

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Daylighting Softwarephoto-realistic rendering developed in Radiance (from LBL)

    image from Arup Lighting

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Physical Daylighting Modelsas good as the model makers skills what you see can be what youll get

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Daylighting ModelsTVA Building, Chattanoogamodel testing showed that atrium louvers would cast too-intense shadows

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Using DaylightingModels^^ architectural daylight meterwhat you see (windows behind stage not a good idea) ^^^^ mirror sky

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Daylighting Design Tools vs. Shading Design Tools artificial sky (LBL): heliodon (PEC): can simulate clear and overcast skies simulates direct solar radiation

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Mount Angel Library, Mt. Angel, OR, Alvar Aalto (1970)as with the Kimbell Art Museum,a very architectural daylightingfixture is a key building featureSeveral Examples of Daylighting

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Mount Angel Librarysupplemental electric lightingcompare size of circular skylightto size of opening on roof(three slides down)

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Mount Angel Library

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Mount Angel Library

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Mount Angel Librarynote electric lamps over bubble skylightshonest / dishonest?note three different shadingtreatments on one faade;the interior conditions drive this

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Mount Angel Librarysurfaces adjacent to apertures are designed to spread daylight and reduce contrast

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Mount Angel Libraryreading carrels receive and pass on daylight;providing for both privacy and daylight transfer

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *U.S. Air Force Academy Chapel, Colorado Springs, CO, SOMwww.usafa.af.mil/

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *U.S. Air Force Academy Chapel

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Churches, Color, and Daylighting, Portland, ORstained glass as object

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Churches, Color, and Daylighting, Eugene, ORstained glass as illuminator

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Churches, Color, and Daylighting, Portland, ORunder daylightunder electric lightthe lighting fixtures >>

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Thorncrown Chapel, Eureka Springs, AR, Fay Jonesdaylighting as fallout from a powerful design intent

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Thorncrown Chapel

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Thorncrown Chapel

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Thorncrown Chapel

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *Thorncrown Chapel

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *daylighting as a means of expressionMIT Chapel, Cambridge, MA, Eero Saarinenhttp://en.wikipedia.org/wiki/MIT_Chapelsee following slide for results

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *daylighting (and electric lighting) as expressionMIT Chapela hard-to-photographdetail where daylightingprovides uplighta daylitsculpturehighlightingtexture

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

  • Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *sunlighting/daylighting as connectioncirculation spine, earth sheltered bookstore,University of Minnesotaunless blinding, direct solar is welcomed below ground

    Ball State Architecture | ENVIRONMENTAL SYSTEMS 1 | Grondzik *

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