Hydrokinetic  Power Plants with Submerged JET Turbines

See a video of  new invented pontoon river stream power plant with submerged JET hydrokinetic turbines here  

See at  www.youtube.com/watch#!v=-PX0wGi3Oag&feature=channel Wind-Hydro Kinetic Tidal/River/Canal Power Barge with Vertical Axis JET Mono- directional Rotating Turbines in Omnidirectional Water/Wind Flow. Wind/Hydro-kinetic power plant with JET blades on vertical shafts (cross flow turbines)based on a floating anchored pontoon structure. Patented JET turbines formed by hollow blades with elliptic-like cross-section. The blades with side inlet aperture and outlet nozzles at blade trailing edge. It is a radical new patented blade design (ROTOJET) that increases flow-to-power efficiency significantly and helps to increase turbine performance at low and moderate flow speeds and in turbulent flow as well. Easy starting turbines. Patent pending. Integrated oil less power train with a common electric alternator.

Hydrokinetic power refers to the generation of electricity from moving water without impoundments or diversionary structures that are typically used at conventional hydropower facilities. New invented technology operates in open rivers, channels, tidal areas and oceans. It is a new high efficient standard of conversions of water kinetic energy to usable power thank to number of patented radical new technical solutions based on JET augmented turbine rotors. The invented JET hydrokinetic power plants designs include both horizontal and vertical JET turbines. It is basically surface-suspended systems, is also deployable downstream from existing hydropower facilities, which allows for new, environmentally- friendly power generation within the existing project footprint.

As far as the hydro-kinetic turbines have full continuity with the wind turbines then they have also their advantages and disadvantages.
I will not make a list of priorities and shortcomings but will only point the principal disadvantage in applying of the identical approaches to the wind turbines and airplane propellers and respectively to the hydro-kinetic turbines and water propellers:

The principal difference between the fluid propeller motors and the fluid propeller turbines is in their function. The propeller motors have the task to create traction. Their rotation is what creates their traction and it is not an aim but a mean. And as far as there are losses of energy during the rotation then they are parasitic according to the main function – the traction. In each case the losses from rotation are unavoidable.

The mission of propeller turbines in the mass case is to rotate for turning the electro-generator. It means that the rotation is the aim and not the mean as it is at the propeller engines. During their rotation the turbines are subjected to the dynamic thrust of the flow which is unfavorable from energetic point of view. This axial thrust is in a sense analogical to the traction at the propeller motors. But for the turbines it is parasitic from energetic point of view and from mechanical-constructive standpoint it destroys them and is also undesired.

The working Principe of the JET fluid turbines is radically new. The JET propeller turbines rotate by analogical reason causing the rotation of the non-reactive propeller turbines. The propellers of JET turbines rotate by reason of the difference of the flow pressure before and after their blades. But this difference around the outlines and especially at the periphery of their blades is almost zero, because the fluid with enhanced pressure freely passes to the back side of the blade, where the pressure is lower which ultimately leads to losses of energy. This is the first main disadvantage of the propeller turbines. The second one is that the axial stress of the fluid over their rotors is parasitic and does not contribute to their rotation but only loads them mechanically.

See a video comparison in operation of a patented axial flow JET turbine vs. conventional propeller turbine at: http://www.youtube.com/watch?v=ghp-7MqUyhs

You can see how operates a 9 JET turbine module of dam Less Hydro Power Farm at very low water speed at  www.youtube.com/watch#!v=Nqe5DCZ4SRk&feature=channel . The Hydro Kinetic River module with common oil less over water drive train includes 3 stage RPM increaser and a common electric generator. Low cost high reliable patented solution for low cost power generation. The module shown is environmentally friendly and does not impact river life and river eco-systems.

Low cost power generation from free river/canal streams by Pontoon Hydro Kinetic Power Barge/Plant with 15 JET Turbines. The barge is a module of hydro kinetic power farm includes number of interconnected modules with semi submersed axis flow JET turbines. The cost of power generated is about USD 0.04/kWh. The JET turbines are world novelty that increase water-to-power efficiency significantly. The JET turbine is a radical new solution based on low cost well known technology. It is fixed blade variable rpm turbine rotating permanent magnet alternator. see a video at  www.youtube.com/watch#!v=47yepY4Mwzw&feature=channel

The JET turbines solve the main two problems of the conventional propeller turbine rotors by JET peripheral channels of the blades. These channels have two functions:

• The fist one is to obstruct the passing of the fluid with enhanced water pressure to the back side of the blade, where the pressure is lower.

• The second function is acceleration of the fluid current in the tip channel/s to create JET stream. In the opposite direction of the jet  flow appears JET force/torque which considerably supports the rotation. Because of the JET channels big part of the fluid pressure over the rotor is redirected into JET torque and also due to the channels the inductive blade tip losses  are vastly decreased.

Thanks to the additional JET mode of blade rotations new designed turbines can increase the turbine efficiency many times. See  comparisons in operation of JET turbine vs. conventional turbine at: http://www.youtube.com/watch?v=ghp-7MqUyhs  and  http://www.youtube.com/watch?v=bWoLchq3EME ). Such JET turbines are presented in the patent descriptions BG110 251/2008 BG, 110 340/2009 and 110 525/2009.

New invented end less JET blades of a wind / hydro kinetic turbine propeller

New invented end less JET blades of a wind / hydro kinetic turbine propeller see at http://www.youtube.com/watch?v=Y_EynR3lhBc

Blade tips of the conventional propellers create significantly energy loses and noise / cavitation. Newly invented JET blades avoid tip energy loses and and noise / cavitation. That is why new endless blades are much more efficient in the comparison with all known blades.  They applicable on both wind and water stream applications. New invented end less JET blades of a hydro kinetic turbine propeller see at http://www.youtube.com/watch?v=5zsCvHhuEtw

 

The new invented JET turbine designed for operation at low wind speed and high turbulence. Under turbine rotor a pyramid like structure directed additional wind to rotor swept area. End less JET tip blades avoid tip energy loses and reduce noise significantly. Solar-PV panels are fitted on sunny side of the bottom pyramid structure. Synergy effect - the panels generate power and energized wind. Applications: Residential and general power plants. See a video of Solar PV-Wind power plants at http://www.youtube.com/watch?v=KNptaLkgjYI

See a video of High Way power plant for battery charging of electric cars/vehicles and plug-in hybrid cars at http://www.youtube.com/watch?v=oAwwQz8uHWw

 

100 kW Class of Axial JET Hydrokinetic Turbines

We have developed two basic project of the Axial JET Hydrokinetic Turbines:

• First type is applicable in relative low water speed currents or for bottom fixed stream energy converter units. It is a basically non-ducted JET-drag axial flow  turbine with fixed blades variable speed operated.

• The second type is applicable in medium to high water speed currents for pontoon supported structure. It is a non-ducted fixed blades  turbine with JET-lift blades variable speed operated.

Both developed (patent pending) tidal turbines JET/Drag and JET/Lift are relatively low cost solutions  operating with high capacity factor and generating low cost power.

Every axial rotating machine (e.g. turbine) in water creates vortex that forces water tangentially. Tip blade JET channel/s redirect/s the forced water to tip JET stream/s. As a result of the JET stream/s in opposite direction is creating tip JET force/torque.

Free river stream turbine is several meters in diameter. It is possible to develop more than 100 kW  power system by 2x100 side-by-side axial turbines operating in counter rotating mode using a common gearing and electric alternator, power electronics etc..

The non-ducted hydrokinetic power generation relies simply on the extraction of energy from the natural river velocity of water, these power systems can be placed  with minimal infrastructure or environmental impacts.

The JET rotors on the above described turbines turn slowly. A ship's propellers, by comparison, typically run 5 times as fast. The risk of impact from JET rotor blades is small, because the marine creatures that swim in strong currents tend to be agile, and can avoid slow-moving underwater obstructions..

Download Patent's Brochures:

Automotive and Solar PV Patents

Wind and Hydro-Kinetic JET Turbines

Patented Intelligent PLUS Energy Buildings

Automated System for Building Air-conditioning and Electric Supply 

 

For official patent publications see here