• SHAILAJA.M
• VIDHYA.G
• MERLIN SUBHA.G

Windmills are usually used to extract power from wind energy. Underwater windmills are used to extract energy from the water flow of oceans. Underwater windmills can also be called as Tidal stream turbines. They use kinetic energy of the moving water as wind blades use moving air. The principal of an underwater windmill is same as the usual windmill. A set of blades creating electrical energy converted from mechanical energy moved with the help of aqueous fluent of water. Tides are used to throw water against slanting blades and make them spin. Ocean has different currents at different depths. It was published in the article that near the seabed neither the whirlpools are consequent current passes in the contrary direction. Towers can be built to extract power for such cases. Protection of sea life is also important. Due to the considerable amount of solid over air underwater windmill has slow rotation. Windmills can be put in the river superior ocean currents. It is coated with Teflon or other slippery material.

Tidal stream turbines, water flow of ocean, horizontal axis turbine, vertical axis turbine, SEAGEN project.

"UNDERWATER WINDMILL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 4, page no.146-155, April-2021, Available :http://www.jetir.org/papers/JETIRES06031.pdf

"UNDERWATER WINDMILL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 4, page no. pp146-155, April-2021, Available at : http://www.jetir.org/papers/JETIRES06031.pdf