Sunday, October 4, 2009

Sangath 3 - Ross's Test and Refine Calculations

Shadow Analysis

Shadow Calculations


Shadows Original
9:00am Winter Solstice
Azimuth = 54dg Altitude= 24 dg
Sun Penetrates the entire floor area
0% Shade

12:00pm Winter Solstice
Azimuth = 15dg Altitude= 53dg
Rooms are in 100% Shade

4:00pm Winter Solstice
Azimuth = 303dg Altitude= 32dg
Sun Penetrates 50% of room floor area
50% Shade from hot sun

In order to stop sun penetration, louvers must be closed, therefore no ventilation!


Shadows Refined

9:00am Winter Solstice
Azimuth = 54dg Altitude= 24 dg
Shading prevents sun heat penetration.
100% Shade


12:00pm Winter Solstice
Azimuth = 15dg Altitude= 53dg
Shading prevents sun heat penetration.
100% Shade


4:00pm Winter Solstice
Azimuth = 303dg Altitude= 32dg
Shading prevents sun heat penetration.
100% Shade from hot sun


0% Sun heat penetration due to Reiri screen. Only natural light!



Ventilation Analysis

Ventilation Original

Winds from North
- Good ventilation through an open design.
- Angled Roof blocks wind high up

Winds from South-East
- Bad design fins dont direct the wind, they
block it
Winds from East
- bad design where the fins block wind
- See white air-pockets

VENTILATION NOT AS GOOD AS FIRST HOPED!

Ventilation Refined
Winds from East
- Excellent ventilation by eliminating fins

Winds from South
- Excellent ventilation by eliminating the fins

Winds from East
- Perfect Ventilation by removing major roof pitch

Air is able to flow the entire way through the building -
Perfect for Kakadu.

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