1. SOLAR ENERGY
JULIO ANDRÉS RABAL ESCARBAJAL
ARAM VILAR GALLARDO

2. Using Solar Energy to Provide
Heat and Electricity

3. Passive Solar Heating
Symtems
• The house itself acts as the solar collector
and storage facility.
• No pumps or fans are used.
• This system makes use of the materials of
the house to store and absorb heat.
• Three Types:
 Direct-Gain
 Indirect-Gain
 Attached Greenhouse

4. DIRECT-GAIN
• Large south facing
windows that let in
the sunlight.
• Thermal mass is
used to absorb the
radiation.
• At night the
absorbed heat is
radiated back into
the living space.

5. INDIRECT-GAIN
• Collects and stores the
solar energy in one part
of the house and use
natural heat transfer to
distribute heat to the
rest of the house.
• Popular method is to use
a Trombe Wall which is
a massive black masonry
that acts as a solar
collector and a heat
storage medium.

6. ATTACHED GREENHOUSE
• Uses a combination of
Direct and Indirect-Gain
systems that use water
drums and a masonry floor
as heat storage in the
attached greenhouse.
• Thermosiphoning can use
direct-gain from the flow
of air created by the
difference in pressure
between the less dense
warmer air of the room
and the cooler air near the
ground.