UNDERWATER WINDMILLS HARNESSING THE WORLDS MARINE CURRENT Tidal

UNDERWATER WINDMILLS HARNESSING THE WORLD’S MARINE CURRENT

Tidal Streams – What? • Tidal streams Ø Water being moved by tidal force • Tidal stream turbines Ø ‘Underwater windmills’ • The concept Ø Turbines are driven by kinetic energy of moving water • The condition Ø Current speed is more than 1 m/s

Tidal Stream - Where? Map of the area between coasts of Ireland Scotland: areas marked with magenta (in circles) are the place with strong enough currents

Tidal Stream – Why? • Harnessing the marine currents help reduce the world’s dependence upon carbon • Tidal flows are predictable; both in terms of timing and in judging the maximum velocity

Design Challenges The challenges to make tidal turbines commercially viable: • The need to create an underwater structure with foundations capable of withstanding extremely hostile conditions • The need to place the systems in the right location • The need to make units efficient and easy to maintain

What’s So Special About Sea. Gen? • The turbine structure acted as its own installation system • The design is quite unusual for a ‘windmill’ : two-bladed rotors • The pitch can be controlled

Tidal Power Generation

Future Development Sea. Gen “U” a possible answer for gaining a more powerful and viable technology in shallower and in deeper water

Environmental Concerns • Marine mammals observers monitore seal movements near the turbine • Sea. Gen can be shutted down completely in only FIVE seconds

the ones who want to make this world greener : GROUP V Egi Febriansyah 26020210110043 Aida Astuti Cahyaningwidi Rahayu Sutopo 26020210120044 Arifismail Eko Riyanto 26020210110045 Septi Nur Fajarin 26020210110046 Muhammad Chusnul Marom 26020210120047