New look on power generation by oceans' currents


New look on power generation by oceans’ currents
Author: David Judbarovski, system engineering, principle inventor
judbarovski@gmail.com

Abstract
My hydraulic turbine is breakthrough simple and cheap and can save some milliard dollar for Japan annually by extracting 5% power potential of its nearby Kuroshio current. It cost (CAPEX) practically is a total cost of electric generators can be low speed gearless permanent magnet synchronous generator, because the others are relatively negligible. So it is about USD 200-400/kW. Supposing 5 years payback, the electricity cost would be less than one cent per kWh.
Really, 8800 hrs. * 5 yrs. * 1.0 kW = 44,000 kWh by USD 200-400. So 0.45 -0.9 cent / kWh

Disclosure for technical expert:

It is a vertical chain of special units. Each unit is equipped by two electric generators each at its ends and by three vertical plane blades of identical window leaf of thin steel sheet. So the current’s flow rotates the said generators by closing alternately the window leafs or opening them.
The neighboring units are rotated oppositely, so we can minimize torsion loads.
The lowest end of the said chain is fixed by polyamide rope to the sea bottom by a heavy load, while the top of the chain is a simplest empty submerged balloon creating Archimedean force to be some times bigger than the said turbine total weight.

     

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