Tuesday, 21 May 2013

What are the limitations of the energy that can be obtained from the oceans



Q No. 2:
What are the limitations of the energy that can be obtained from the oceans?
Ans:
Tidal energy, wave energy, and ocean thermal energy are various forms of energy that can be obtained from the sun. But there are several limitations to harness these energies. Those limitations are
(i)High dams are required to be built to convert tidal energy into electricity which incurs lot of cost.
(ii)       Very strong waves are required, which are not possible all the time.
(iii)     Tidal energy depends on the relative positioning of the Earth, moon, and the Sun. 
(iv) To harness ocean thermal energy the difference in the temperature of surface hot water and the cold water at depth must be 20ºC or more.

11 comments:

  1. In the first line it should be 'obtained from the ocean' instead of 'obtained from the sun'

    ReplyDelete
    Replies
    1. if i am wrong please tell me

      Delete
    2. You are right, the blogger made a small mistake. It indeed show be 'obtained from the ocean/sea'

      Delete
  2. Shut up all of you
    You can only find mistakes
    You don't have courage to answer

    ReplyDelete
  3. My question is
    Any 2 limitations of harnessing heat energy

    ReplyDelete
    Replies
    1. Heat energy can be harnessed from the radiations of sun ie, solar energy
      It has several limitations :
      it cannot be harnessed during a rainy day or cloudy day
      setting up of solar cell panels require huge amount of infrastructural charges

      Delete
  4. want limitations of wave energy also . so that we can answer 5 mark question..............

    ReplyDelete
  5. Well,this answer helped me gain full marks!!
    Thank u😊

    ReplyDelete