Скачать презентацию Environmental Controls Lecture 18 Daylighting Design Analysis Скачать презентацию Environmental Controls Lecture 18 Daylighting Design Analysis

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Environmental Controls Lecture 18 Daylighting Design & Analysis Design Strategies Glazing and Reflectors Sidelighting Environmental Controls Lecture 18 Daylighting Design & Analysis Design Strategies Glazing and Reflectors Sidelighting Analysis Method

Daylighting Design & Analysis Daylighting Design & Analysis

Orientation and Slope Vertical vs. Horizontal Time of year Sun position DL-5 F. 10 Orientation and Slope Vertical vs. Horizontal Time of year Sun position DL-5 F. 10 -1 p. 79

Daylighting Components SC=Sun + Sky IRC 1 IRC 2 ERC S: F. 14. 18 Daylighting Components SC=Sun + Sky IRC 1 IRC 2 ERC S: F. 14. 18 p. 598

Daylighting Factor (DF) The quantity of interior illuminance on a horizontal work plane expressed Daylighting Factor (DF) The quantity of interior illuminance on a horizontal work plane expressed as a percentage of illuminance of an exterior unobstructed horizontal plane DF (%) = (EINT/EEXT) x 100

Daylighting Factor (DF) If EINT is 20 foot-candles and EEXT is 1000 foot-candles, then Daylighting Factor (DF) If EINT is 20 foot-candles and EEXT is 1000 foot-candles, then what is the daylighting factor? DF(%)= (EINT/EEXT) x 100 DF (%)=(20/1000) x 100 DF (%)=2. 0%

Isolux Contours n n Lines of similar lighting levels Expressed as DF Darwin College Isolux Contours n n Lines of similar lighting levels Expressed as DF Darwin College Library, Cambridge, England

Isolux Contours Example EEXT= 2000 fc 1: 20 fc 2: 60 fc 3: 100 Isolux Contours Example EEXT= 2000 fc 1: 20 fc 2: 60 fc 3: 100 fc 4: 40 fc 5: 80 fc 6: 140 fc 7: 20 fc 8: 60 fc 9: 100 fc 1+ 2+ 3+ 4+ 5+ 6+ 7+ 8+ 9+ DF(%)= (EINT/EEXT) x 100

Isolux Contours Example EEXT= 2000 fc 1: 20 fc 2: 60 fc 3: 100 Isolux Contours Example EEXT= 2000 fc 1: 20 fc 2: 60 fc 3: 100 fc 4: 40 fc 5: 80 fc 6: 140 fc 7: 20 fc 8: 60 fc 9: 100 fc DF=1 % DF=3 % DF=5 % DF=2 % DF=4 % DF=7 % DF=1 % DF=3 % DF=5 % 1+ 2+ 3+ 4+ 5+ 6+ 7+ 8+ 9+

Isolux Contours Example EEXT= 2000 fc 1: 20 fc 2: 60 fc 3: 100 Isolux Contours Example EEXT= 2000 fc 1: 20 fc 2: 60 fc 3: 100 fc 4: 40 fc 5: 80 fc 6: 140 fc 7: 20 fc 8: 60 fc 9: 100 fc DF=1 % DF=3 % DF=5 % DF=2 % DF=4 % DF=7 % DF=1 % DF=3 % DF=5 % 1 3 5 2 4 7 1 3 2 5 4 6

Isolux Contours n n Lines of similar lighting levels Expressed as DF Darwin College Isolux Contours n n Lines of similar lighting levels Expressed as DF Darwin College Library, Cambridge, England

Illumination Gradient An illumination gradient through a section Ludwig Museum, Koln, Germany Illumination Gradient An illumination gradient through a section Ludwig Museum, Koln, Germany

Design Strategies Design Strategies

Selection Parameters Daylight availability Task orientation Space orientation Selection Parameters Daylight availability Task orientation Space orientation

Daylighting Graphs 10’ Ceiling 30” Work plane DL-5: F 10 -2 p. 80 Daylighting Graphs 10’ Ceiling 30” Work plane DL-5: F 10 -2 p. 80

South Facing Walls Solid Overhang a: translucent glazing b: horizontal overhang c: 30º sloped South Facing Walls Solid Overhang a: translucent glazing b: horizontal overhang c: 30º sloped clear glazing d: 45º sloped clear glazing DL-5: F 10 -5 p. 82

South Facing Walls Diffusing Awnings a: translucent glazing b: translucent awning clear glazing c: South Facing Walls Diffusing Awnings a: translucent glazing b: translucent awning clear glazing c: white vertical slatted awning, clear glazing d: white, horizontal slatted awning, clear glazing DL-5: F 10 -6 p. 82

Light Shelves W: With light shelf WO: Without light shelf DL-5: F 10 -18 Light Shelves W: With light shelf WO: Without light shelf DL-5: F 10 -18 p. 89

Skylights Effect of skylight above roof a: flat horizontal b: half-round barrel, white opaque Skylights Effect of skylight above roof a: flat horizontal b: half-round barrel, white opaque ends c: steeply sloped A-frame, white opaque ends Typographic Error In Reading DL-5: F 10 -21 p. 91

Roof Monitors North-South Monitors a: translucent panel b: north monitor, clear glazing c: south Roof Monitors North-South Monitors a: translucent panel b: north monitor, clear glazing c: south monitor, translucent glazing DL-5: F 10 -30 p. 95

Roof Monitors Sun Control Baffles/Louvers Light Wells DL-5: F 10 -35 p. 97 Roof Monitors Sun Control Baffles/Louvers Light Wells DL-5: F 10 -35 p. 97

Roof Monitors Graphic Design Approach DL-5: F 10 -37 p. 98 Roof Monitors Graphic Design Approach DL-5: F 10 -37 p. 98

Glazing & Reflectors Glazing & Reflectors

Fenestration Window or Fenestration? Fenestration Window or Fenestration?

Clear Glazing Maximum VLT DL-5: F 11 -1 p. 105 Clear Glazing Maximum VLT DL-5: F 11 -1 p. 105

Gray/Bronze Glazing DL-5: F 11 -2 p. 106 Gray glass preferred where color rendition Gray/Bronze Glazing DL-5: F 11 -2 p. 106 Gray glass preferred where color rendition is important

Heat Absorbing Glazing DL-5: F 11 -3 p. 107 n n Green is more Heat Absorbing Glazing DL-5: F 11 -3 p. 107 n n Green is more common Blue is becoming more available

Solar IR Reflective Film DL-5: F 11 -6 p. 109 Low-E Glass Solar IR Reflective Film DL-5: F 11 -6 p. 109 Low-E Glass

Multiple Glazing n n Combinations of individual paned glazing Mylar/Film layer Inert gas (argon Multiple Glazing n n Combinations of individual paned glazing Mylar/Film layer Inert gas (argon or krypton) “Superwindow”

Exotics n n n LED Windows Aerogels Kalwall Prototype House and Studio Thomas Herzog Exotics n n n LED Windows Aerogels Kalwall Prototype House and Studio Thomas Herzog