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LECTURE 8: SUNSHINE AND SHADING DESIGN, download (1), download, download -…
LECTURE 8: SUNSHINE AND SHADING DESIGN
SHADOW ANGLES
HSA:HORIZONTAL SHADOW ANGLE
VERTICAL SHADING DEVICES
BETWEEN+/- 90 AND 270
DESCRIBES THE ANGLE IN PLAN
VSA:VERTICAL SHADOW ANGLE
DESCRIBES PROJECTION OF SOLAR ALTITUDE
CAN EXIST ONLY WHEN HSA BETWEEN-90 AND +90
VERTICAL PLANE
SHADOW ANGLE DESCRIBES THE POSITION OF THE SUN
CALCULATION OF HAS AND VSA
LATITUDE
AT LATITUDE 35 SOUTH
TIME, DATE AND MONTH
TIME:1PM,DATE:21 MARCH
ALTITUDE & AZIMUTH
ALTITUDE=50 , AZIMUTH=335 NNW
ORIENTATION OF THE BUILDING FACADE
TWO STES OF LINES
RADIAL LINE
GIVE READINGS OF THE HSA
ARCHUAL LINE
GIVE READINGS OF VSA
MAKE A LINE TO ARCUAL LINE TO SEE WHERE THE SUN IS
PROTRACTOR CENTER POINT
MUST COINCIDE WITH CENTER
HSA&VSA
USING SHADOW ANGLE PROTRACTOR
DEFINITION
OPENING+ SHADING DEVICES CAN BE STRATEGIZED
EXTERNAL SHADING DEVICES CAN ELIMINATE SOLAR RADIATION ON A BUILDING
HSA&VSA
SIMPLEST METHODS
SUN IN RELATION TO FACADE
USE TO DETERMINE
OVERSHADOWING
SUNLIGHT PENETRATION INTO A BUILDING
DESIGN APPROPRIATELY SIZED SHADING CONTROL DEVICES
