The document discusses sun paths and how knowledge of sun paths and climatic conditions is essential for making economic decisions about solar energy use and landscaping. It explains that the earth's axis is tilted 23.5 degrees relative to its orbit around the sun, creating differences between summer and winter sun paths and solar altitudes. Specifically, it notes that the northern side receives no direct sunlight but uniform daylight, making it suitable for work spaces, while the southern side receives the most solar radiation and can be carefully designed to manage summer heat and utilize winter sun.

1. SUBMITTED BY :
ASHISH GUPTA
GURKARAN SINGH DHALIWAL
HARKAMALPREET KAUR
JAGMIT SINGH
SAMPREET GILL
SAMRIDHI GUPTA
CLIMATOLOGY
SUBMITTED TO :
AR. JEET KUMAR GUPTA

2. Sun path refers to;
-- seasonal-and-hourly positional change
of Sun and length of daylight as
Earth rotates and orbits around the sun.
Accurate location/specific knowledge of sun path and
climatic conditions essential for:
• economic decisions about solar collector area
• orientation,
• landscaping
• summer shading, and
• cost-effective use of solar trackers.

3. • Sun paths at any latitude and any time of the
year can be determined from basic geometry.
• The Earth's axis of rotation tilts about 23.5
degrees, relative to the plane of Earth's solar
system orbit around the Sun.
• As the Earth orbits the Sun,
creates the 47-degree peak-to-peak solar
altitude angle difference, and
hemisphere-specific difference between summer
and winter.

7. • Sun does not touches the North Side in the
Northern Hemisphere- Sun rises in East and sets
in West with variations in Summer and Winter
• No direct solar radiation available on the
Northern Side
• However, daylight available during the entire
duration of the sun in North

8. • Daylight remains uniform in North - depending on
sky conditions
• Coolest side with no direct Sun
• Best for work places which require enough light but
no heat
• North light is generally used in Industrial buildings/
drawing studio
• Courtyards should not be given in north side , as no
direct sun is available here.

9. • Solar Radiation available- both in Summer and
Winter
• In winter - Sun angle remains low- less duration
of Sun- 9 hrs
• In Summer-- Sun angle is high- Large duration of
Sun- 14 Hrs
• Maximum Solar radiation available on the
Southern Side

10. • In Winter Sun remains on the South for Majority of time
• Sufficient daylight available during the entire duration
of sun
• Being very hot and having glare in Summer – Southern
side have to be carefully handled.
• Summer Sun being very hot and vertical- can be
managed by horizontal projections.
• Winter Sun being low can be effectively used for making
rooms warm

11. • Southern side can be used for living and working
areas- bedrooms, dining, kitchen, offices etc .
• In the southern hemisphere, however, it is opposite, with
the windows facing the north in order to maximize solar
gain