SCIENCE AND TECHNOLOGY IN ENERGY and POWER TECHNOLOGIES AND MANUFACTURING

There are numerous way of producing energy which has been listed in the topic sources of energy

EXAMPLE

ENERGY FROM THE SEA

TIDAL ENERGY

• Depends upon the harnessing the rise and fall of sea level due to tidal action.
• dams are constructed and turbines convert tidal energy into electrical energy.

WAVE ENERGY

• kinetic energy of the waves of the sea are used to rotate the turbines.
• this turbines generate electrical energy.

TECHNOLOGY IN MANFACTURING

In std VIII the chapter coal and petroleum consist of processes involving fractionisation of petroleum under REFINING PETROLEUM.