Ocean energy to be considered as renewable energy current affairs 2019 upsc ias upsc2020.
Ocean energy systems upsc.
A variety of different technologies are currently under development throughout the world to harness this energy in all its forms.
Tsunami and its causes tsunami warning systems upsc.
Land is a scarce resource for many regions so on shore solutions have to compete and can extend to a limit but ocean energies are provided by the.
Moving water is more than 800 times denser than moving air which multiplies the kinetic energy by the same factor and opens up the scope of huge amounts of energy.
Thursday september 24 2020 8 00 9 30am pdt 3 00 4 30pm utc.
Upsc geography optional syllabus is also given in detail below.
Closed cycle ocean thermal energy conversion systems use a working fluid with a low boiling point ammonia for example and use it to power a turbine to generate electricity warm seawater is taken in from the surface of the oceans and cold water from the deep at 5 o the warm seawater vaporizes the fluid in the heat exchanger which then turns the turbines of the generator.
Geography syllabus for upsc prelims.
Introduction to ocean energy oceans cover 70 percent of the earth s surface and represent an enormous amount of energy in the form of wave tidal marine current and thermal gradient.
Ocean makes up nearly 70 of the earth s surface.
As the upsc exam is concerned geography is a widely chosen subject by the candidates.
The need for technology cooperation was identified in response to increased activity in the development of ocean wave and tidal current energy in the latter part of the 1990 s and the beginning of this decade primarily in denmark portugal and the.
The change in the total energy of the tsunami remains constant.
The seismic waves travelling through the ocean and sea water results into high sea waves whichare known as tsunami.
Coral reefs are one of the most biologically diverse marine ecosystems on the earth ecologically coral reefs are important because they are the counterpart to the tropical rain forest in terms of species diversity and biological productivity in the ocean.
The ocean energy systems energy technology collaboration programme oes was launched in 2001.
By lotus arise february 16 2020 february 16.
Iea technology collaboration programme on ocean energy systems has published in depth inte.
In upsc prelims general studies paper geography is included as well as in the main exam s gs paper 1.
Tsunami is a japanese term.