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