3. • Known about 30000 years.
• Reply his needsFire
• Water irrigation
• heating processesAnimals
4. » Al Razy
In forces and energy conversion calculation .
» Al Jazari
He used mechanics and water for converting energy from
one form to another.
5. » Gaber Ebn-Hayan
Chemical energy analysis foundation and construct of its
conversions.
» Al-Haysam
Electromagnetic energy analysis and light construction
description.
6. » Transitional Energy
Energy in motion , across all system boundaries
Ex: current, work and heat.
» Stored Energy
Exist as mass , position in force field and can transfer to
transition form
Ex: potential energy and hydraulic dames
19. Two Applications
• Uses Semiconductor which has free
electrons liberated when photons falls on
it and generate electricity.
Solar cells
• Solar rays are concentrated to a single area
to heat water which converted into steam
to generate energy.
Solar concentrates
25. » Wind
Using the mechanical energy of the
movable wind and convert it in
electricity by wind turbines .
Wind turbine has to types vertical and
horizontal.
