solar power
DESCRIPTION
this is a small ppt about SOLAR POWER..i think it may useful to all of us..TRANSCRIPT
CHANDRA SEKHARII B.SC
ANDHRA LOYOLA COLLEGEVIJAYAWADA
SOLAR POWER
CONTENTSINTRODUCTION TO SOLAR
ENERGYSOLAR COLLECTORSSOLAR PHOTO VOLTAICSDESIGN OF BUILDINGSTECHNOLOGY DEVELOPMENT
TRADESADVANTAGES AND
DISADVANTAGESCONCLUSION
SOLAR POWER
SOLAR ENERGY
The Solar energy originates with the thermonuclear fusion reaction occur in the Sun.
AUGUST MOUCHOT was the first person to develop a system that uses solar power in 1878.
Solar energy has greatest potential of all the sources of the Renewable energy.
The solar power where sun hits the Atmosphere is 1017 watts.
It comes to earth with 1016 watts The world wide power demand of
all the needs of civilization is 1013
watts There fore the Sun gives us 1000
times more power than we need.
NON- RENEWABLE ENERGY Natural resources such as coal, petroleum,
oil and natural gas take thousands of years to form naturally and cannot be replaced as fast as they are being consumed.
Coal Oil Rig Collecting Petroleum
SOLAR COLLECTORS
Non-concentrating Concentrating
NON-CONCENTRATING
FLAT PLATE
COLLECTORS. They are made in
rectangular panels, from about 1.7 2.9 sq.m in area and relatively simple to construct.
Flat plates can collect and absorb both direct and diffuse solar radiation
EVACUATED COLLECTORS
CONCENTRATING
Applications Of Solar Energy
SOLAR WATER HEATING HEATING AND COOL OF RESIDENTIAL
BUILDINGS SOLAR COOKERS SOLAR ENGINES FOR WATER
PUMPING FOOD REFRIGERATION SOLAR VEHICLES SOLAR PHOTOVOLTAIC CELLS
SOLAR PHOTOVOLTAICS An increasingly popular
use of solar energy involves solar electric systems, called Photovoltaics.
Photovoltaic (PV) systems convert sunlight directly into electricity, and are potentially one of the most useful of the renewable energy technologies.
DESIGN OF BUILDINGS
Placement of room-types, internal doors & walls, & equipment in the house.
Orienting the building to face the equator. Extending the building dimension along
the east/west axis. Adequately sizing windows to face the
midday sun in the winter, and be shaded in the summer.
THE HOUSE OF THE FUTURE:
TECHNOLOGY DEVELOPMENT TRADES
Integration of solar energy in buildings. Solar lights. Solar city demo in boding. Solar drying technique. Thermal power generation.
ADVANTAGES
Electric bills are dramatically drop. -No power outages. -No pollutants.
DISADVANTAGES -sun does not shine consistently.
-solar energy is a diffuse source.
FINAL THOUGHT
Argument that sun provides power only during the day is countered by the fact that 70% of energy demand is during daytime hours.
At night, traditional methods can be used to generate the electricity.
Goal is to decrease our dependence on fossil fuels.
Currently, 75% of our electrical power is generated by coal-burning and nuclear power plants.
Decrease of acid rain, carbon dioxide pollution free, indefinitely sustainable.
Earth’s Non – renewable Resources Are
Getting Used Up!To Save Them,
Follow 3 Simple Steps:Save, Recycle And Grow Trees
SAVE