CONTEMPORARY AND FUTURE
TRENDS
Improving energy efficiency using
- Photo Voltaic Cells
- Battery Technology
- Thermal Energy Storage
- Recycled and Reusable Building materials
- Nanotechnology
- Smart materials and the future of built environment -
- Energy Conservation Building code
,SOLAR CELL (OR) PHOTOVOLTAIC CELL
,SOLAR CELL (OR) PHOTOVOLTAIC CELL
Solar cells are made of thin wafers of semi
conductor materials like silicon and gallium.
When solar radiations fall on them, a
potential difference is produced which
causes flow of electrons and produces
electricity.
Silicon can be obtained from silica or sand,
which is abundantly available and
inexpensive.
By using gallium arsenide, cadmium
sulphide or boron, efficiency of the PV
cells can be improved.
The potential difference produced by a
single PV cell of 4 cm2 size is about 0.4-
0.5 volts and produces a current of 60
milli amperes.
, SOLAR CELL (OR) PHOTOVOLTAIC CELL
A group of solar cells joined together in a definite pattern form a
solar panel which can harness a large amount of solar energy and
can produce electricity enough to run street-light, irrigation water
pump etc.
Solar cells are widely used in calculators, electronic watches, street
lighting, traffic signals, water pumps etc. They are also used in
artificial satellites for electricity generation.
Solar cells are used for running radio and television also. They are
more in use in remote areas where conventional electricity supply is
a problem
TRENDS
Improving energy efficiency using
- Photo Voltaic Cells
- Battery Technology
- Thermal Energy Storage
- Recycled and Reusable Building materials
- Nanotechnology
- Smart materials and the future of built environment -
- Energy Conservation Building code
,SOLAR CELL (OR) PHOTOVOLTAIC CELL
,SOLAR CELL (OR) PHOTOVOLTAIC CELL
Solar cells are made of thin wafers of semi
conductor materials like silicon and gallium.
When solar radiations fall on them, a
potential difference is produced which
causes flow of electrons and produces
electricity.
Silicon can be obtained from silica or sand,
which is abundantly available and
inexpensive.
By using gallium arsenide, cadmium
sulphide or boron, efficiency of the PV
cells can be improved.
The potential difference produced by a
single PV cell of 4 cm2 size is about 0.4-
0.5 volts and produces a current of 60
milli amperes.
, SOLAR CELL (OR) PHOTOVOLTAIC CELL
A group of solar cells joined together in a definite pattern form a
solar panel which can harness a large amount of solar energy and
can produce electricity enough to run street-light, irrigation water
pump etc.
Solar cells are widely used in calculators, electronic watches, street
lighting, traffic signals, water pumps etc. They are also used in
artificial satellites for electricity generation.
Solar cells are used for running radio and television also. They are
more in use in remote areas where conventional electricity supply is
a problem
