SOLAR ENERGY JULIO ANDRÉS RABAL ESCARBAJAL ARAM VILAR GALLARDO
Using Solar Energy to Provide Heat and Electricity
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
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.
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.
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.