Please enable JavaScript.
Coggle requires JavaScript to display documents.
SUNSHINE AND SHADING DEVICE, image, Design appropriately sized shading…
SUNSHINE AND SHADING DEVICE
SHADOW ANGLE
Position of the sun
Azimuth and Altitude
Shadow angles
Vertical Shadow Angle
Described the angle made on the vertical plane
Exist when HSA = -90 degrees to +90 degrees
Measured on a plane perpendicular to the facade
Horizontal Shadow Angle
HSA= +/-90 degrees to 270 degrees ---sun behind the facade
Angle usually calculated in plan view
Difference in azimuth between sun's position and orientation of the building face
CALCULATIONS
Data required
Latitude: Determining North and South
Time, date and month of the year
Altitude and Azimuth
Orientation of the building facade
Shadow angle protractor
Shows 2 sets of lines
HSA/VSA
Easiest way of describing the position of the sun in relation to facade
HSA
Shows how much sunlight enters into a building
VSA
Shows the extent of overshadowing
Curvy lines
Straight Lines
Design appropriately sized shading control device
.
.
