Question

can anyone explain me Ocean Thermal Energy or tidal energy? those who can explain me in detail he or she will be counted by me in brainliest. because day after tomorrow I will have exam​

Answer 1

Ocean Thermal Energy

• The surface of the ocean is at a higher temperature than the layers below.
• This is because of the sun's heat warms up the upper layers of the sea.

• This temperature difference is exploited to generate energy

• A minimum temperature difference of 20 degrees C is needed between water at the surface and at a depth of about 2 km.

• This requires Ocean Thermal Energy Conversion plants which converts ocean thermal energy to electricity.  

Ocean Thermal Energy Conversion plants

• The water at surface of the ocean which is at higher temperature vaporizes liquid ammonia.

• The vapour ammonia now moves the turbine which generates electricity.

• The vapour ammonia then, is condensed using the water at the bottom layers of the ocean. It now again becomes liquid ammonia.

• This is again heated by the heat from the top layers and the process continues

aDVANTAGES

·         More reliable (more than solar/wind)

·         Renewable

·         Low maintenance cost

DISADVANTAGES

• Initial cost is very high

• Not environment friendly because construction of such plants could harm aquatic plants and animals.