Hidropower station with a oscillating cylindrical body
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of hydroelectric power station with oscillating cylinders
Nowadays by solving of energy
problems the people stake on traditional renewable energy sources:
using of wind, solar, stream and sea waves energy etc. There’re
developed a number of various wind-electric plants, hydroelectric power
stations that use a stream and wave energy, solar electric plants,
biofuel etc. But the developed models don’t obtain a wide circulation
because of a number of essential disadvantages:
1. High costs of power stations and energy.
2. Need of dike construction and other complicated installations.
3. Negative influence on environment.
4. Complicated construction and running.
5. Lengthy and time-taking process of power station construction.
In this connection all countries look for more economical and
easy-constructed power stations. But this searching process doesn’t
bring any positive results till today.
That’s why it is important to develop new types of renewable energy
sources, which don’t posses mentioned disadvantages.
One of these types can be hydroelectric power stations which extract
stream energy with oscillating cylinders (kinetic energy of streams).
The economical calculation is showed in chapter 5, 6, see below. This
project is made for development and adaptation of hydroelectric power
stations of such type.
These hydroelectric power stations are damless and can be installed on
big and smalls rivers, in the near shore-areas of sees with stream
velocity of 0.5 – 3 m/sec and more.
Energy extraction principle of steams based on oscillating cylinder.
A known fact is that by flow-around
of cylinder occurs a vortex path – two whirls that rise and lift off
not at the same time. As result occurs an alternating force that act on
cylinder across to stream.
is installed on movable anchor, this force can bring the cylinder into
oscillating motion. If the system of mechanical energy take off will be
organized in the right way, this mechanical energy can be transformed
into electrical power. It will be an energy source.
The traditional wind- hydro power
plants based on rotating blades have a number of disadvantages, which
prevent their wide occurrence (high cost, large-sized, low efficiency,
complicated construction, need of dikes etc.). Nowadays starts a
development of first models of wind- and hydro power plants with
oscillating work elements (flies, cylinders, plates etc.)
The power stations with oscillating wings or cylinders posses the
following advantages compared to traditional models:
- in the process of energy outfeed is involved the all wing or cylinder
surface (the blade surface is unequal involved)
- Damless construction of hydro power plants.
- Simple controlling and conditioning with microprocessor controlling
system, optimal operation of power stations in all stream velocity
- Simple construction of downstream and –wind orientation.
- Lower high, flexible to horizontal earth surface or river bottom.
- High safety.
- Possibility of modular construction and packaged installation.
Power stationswith oscillating cylinders (or wires) have following
- No need of angular variation (compared to wing).
- Simple and low-cost construction.
- Such power station has a lower efficiency than bladed power stations
or stations with oscillating wings. But because of their simple
construction and possibility of large power extraction, they can have
generating capacity costs and energy cost much lower than by
traditional energy sources and hydro power plants. This is a main
factor for average consumer.
That’s why a number of laboratories abroad start research and
development of power station for stream energy extraction with
Australian company BioPower Systems develops underwater power plants,
which extract underwater stream energy with oscillating cylinders and
American company Vortex Hydro Energy developed a hydro power plant with
In August 2010 was a launching of the first hydro power plant with
oscillating cylinders. After testing of this hydro power plant the
company Vortex Hydro Energy plans to construct such power stations on a
number of the river in USA. By estimate of Vortex Hydro Energy the
energy cost will be much lower compared to various types of power
stations (see chapter 5)
David Labrecque and a team of
University of Maine students (Eugene Katsman, Dan Wheeler, Nate
Laspina, Eric Lovejoy, Ben Commeau and others) have developed a
revolutionary, low-cost, high efficiency, vortex-driven water turbine.
The energy system consists of a wing that “swims” through water like a
fish following a figure-eight trajectory. Experiments show 30%
efficiency at converting the energy in the water to a pumping motion.
This is comparable with traditional turbines, yet hydroflexors have
several advantages: They are low-cost, the mechanical systems are on
the surface where they can be easily serviced and they are
environmentally friendly. The system can be used in streams, rivers and
Utilizing vortices to propel a wing along a figure-eight trajectory is
a new approach. The Flexor team encourages and will provide support to
researchers who want to study this phenomenon and publish their
findings. They are also looking for established manufacturers
interested in manufacturing and marketing products that utilize this
new patent-pending technology. The Flexor team can provide scientific
and technical assistance to research and engineer groups.
For many decades we made theoretical and practical research
of oscillating bodies, swimming and flying animals in water and air. In
this connection we reach following results:
1. We undertook many rounds of experimental study of streams and
forces, which rise by cylinder oscillations in wide frequency and
amplitude range. We found out the never-before-seen principles in the
Fig.1. Whirl cinematic during oscillating period.
2. We found out the modes, which we can use due to whirl
structure near oscillating cylinder for expansion of effective
hydraulic square (cross flow area, from which kinetic energy is
extracted) in many times, see figure 2.
Fig 2. Usual hydraulic disk area of oscillating cylinder and hydraulic
square expanded by using of special oscillating modes and whirl
structure (external boundary of flow on the picture).
It will cause increasing of energy extraction by the same oscillating
amplitudes. In the same time a power load on hydraulic square unit will
be reduced. As result an energy efficiency of incoming flow will be
higher. It can also cause double increasing of extracted energy by the
same oscillation amplitudes.
3. We developed a method and mechanism for kinetic energy
extracting of streams with special configuration of oscillating body
and oscillation low (Know-How).
4. We found out the modes, when associated elasticity occurs
(elasticity caused by whirl structure of the fluid near oscillating
cylinder). Using of this elasticity we can neutralize inertial forces
of cylinder mass and associated water mass.
5. We developed construction principles of special transmitting
elements for coordination of dynamic and kinetic flow characteristics
with load (energy consumer). It will cause a coordination of energy
transfer from energy source to generator (otherwise energy will get
back to the flow) and increasing of energy transfer coefficient from
flow to load.
6. Using of the special distribution of elastic and mass
characteristics of cylinder for coordination of external energy source
with input characteristics of mechanic electric transducer. Due to this
process we increase a flow energy take-off.
7. Using of more effective cylinder oscillation principles. Energy
extraction with lift powers and frictional forces, which act on
cylinder at the same time. It will cause an increasing of a flow energy
8. Reducing of hydrodynamic and aerodynamic resistance with wave
flow-around elements and oscillations.
9. Using of adaptive microprocessor controlling system will cause a
maximal output power by different stream velocities.
10. Using of physical effects for extraction of additional kinetic
energy from latent heat energy and potential pressure energy of water
column or atmosphere.
11. We developed a research methodology of kinematical, dynamical and
energetical characteristics of oscillating cylinder as system.
12. We developed a method and analysis program for hydro power plant as
the one oscillating system.
13. We developed a technique of conversion of mechanical into
14. We started a development of wind hydro generators theory with
15. Base of experimental research results of cylinder oscillation in
nonlinear oscillation mode.
16. Base of patents for wind hydro generators with oscillating work
elements (wings, cylinders, plates etc.) for 80 years.
5. Economical advantages of hydro power plants
with oscillating cylinder compared to present power stations.
Marine Renewable Energy Lab Michigan University under the direction of
Michael Bernitsas defined the general economic results in area of
renewable and nonrenewable energy (see table 1 and 2).
Table 1. Cost of generating capacity and energy costs by different
Power generation technology
Cost of installation
Cost of fuel
Fine grained coal
High quality coal
Synthetic gas mixtures
Usual hydroelectric power stations
6800 - 8700
Atomic energy industry
Hydroelectric power stations with
oscillating cylinders, developed in USA Vortex Hydro Energy
Hydroelectric power stations with
oscillating cylinders, developed by Sorokodum Е.D.
Estimated costs made in USA (table 1) show that the hydro
power plants with oscillating cylinders can have lower energy costs
than by firing (except for coal), biogas and other types of renewable
This estimation is made in the laboratory that developed power stations
for several years and launched 2010 the first power plant. According to
Marine Renewable Energy Lab the technical solutions and working
principles of such mechanisms are the most progressive and advanced in
the area of renewable and alternative energy. According to experts
dates of Naval Architecture & Marine Engineering Michigan
University the mechanisms based on kinetic energy extraction principles
with oscillating cylinder will enter market 2010-2015 on an industrial
advantages of our hydro power plant compared to developed model of
Vortex Hydro Energy USA
Company Vortex Hydro Energy reached
energy efficiency values of 0.07 with account of mechanical-electrical
Using of out results (see chapter 4) and KNOW-HOW we can improve the
technical and economical values of hydro power plants developed by
Vortex Hydro Energy (see table 1 and 2).We can reach an energy
efficiency of 0.45 and with account of mechanical-electrical transducer
Our proposed mechanism can have 6.4 times more stream energy than by
Vortex Hydro Energy. By the same stream velocities, cylinder diameters
and length we will need for our hydro power plant 6 times less
cylinders for getting the same power. It will reduce price, energy
costs, size and weight in 6 times. The following table 2 shows the
values of Vortex Hydro Energy and our results.
Table 2. Number and geometrical dimensions of cylinder by
hydro power plants of different power (including our calculated values)
Type of hydro power plant
Diameter of oscillating cylinder
Length of cylinder
Height of the plant
Cylinder swept area
Number of oscillating cylinders
Weight of the plant
USA Vortex Hydro Energy
Vortex Hydro Energy
Calculated values for stream velocities of 2
Table 3. Price for hydro power plant development of 1 MW and energy
Price for series-produced hydro power
Price for series-produced hydro power
New constructed usual hydro power plant
6800 - 8700
0,046 and more
Hydro power plant with oscillating cylinders in
USA Vortex Hydro Energy
Our developed model of hydro power plant with
oscillating cylinders (project)
Table 3 shows, that based on our results and KNOW-HOW we can
develop a hydro power plant with oscillating cylinders, which cost of
kW*h will be much lower than traditional renewable energy sources and
hydro power plant by Vortex Hydro Energy .
Tables 1, 2 and 3 shows, that due to our proposal and KNOW-HOW it is
possible to construct a hydro power station with price of 500 US
Dollar/kW and energy costs of 0.01 US Dollar/kW*h. It is the lowest
prices compared to traditional power stations and power stations based
on renewable energy.
We can make research
and developmental work on creation of the first samples of new highly
effective technics (on the basis of our theoretical and experimental
researches). We search for investors and partners for creation of the
first samples of this new technics.
Development of damless hydro
power plant of new type, which power cost of energy extraction than by
other energy sources (solar, wind, hydro, diesel fuel energy etc.).
Price of 500 $/kW, energy costs 0.3 Ruble/kW*h.
Based on this work we plan to develop a line of hydro power plants of
500 W-100 МW and supply an energy to more consumers.
The proposed plants, which extract kinetic energy with oscillating
cylinders based on sea or river streams can be constructed of two
types: floating or bottom plants.
Bottom hydro power plant Kinetic energy of undercurrents
brings the cylinder into oscillating motion and gives him a part of own
energy. Cylinder is fixed at elastic mounting. By oscillation the
cylinder brings the stocks of hydro cylinders into oscillating motion.
The moving stocks cause oscillations of oil. The oscillating motion of
oil is straightened with special rectifier and is delivered to
hydraulic oil motor. Hydraulic oil motor rotates a generator shaft,
which produce electric energy. The station configuration is showed at
2. Floating hydro
Prototype model of floating hydro power plant (made by designer Anna
The plant is fixed by anchors or at the shore.
8. According to your order we can make following research
and engineering work:
1. Analysis of your developed hydro power plant with oscillating
elements (cylinder, wing and other forms) and give the development
points for improvement of its characteristics.
2. Development of data processing program by stream energy extraction
with oscillating cylinder or elastic plate.
3. Processing of experimental data by stream energy extraction with
oscillating cylinder or elastic plate.
4. Calculation of geometrical, kinematical, dynamical characteristics
of wind-hydro-generator with oscillating cylinder, wing or elastic
5. Calculation and engineering of transmitting elements, for energy
transmission and coordination from oscillating cylinder or elastic
plate to electro generator.
6. Review of wind-hydro-generators with oscillating wing, cylinder and
7. Map drafting of aerodynamic characteristics of oscillating cylinder
8. Map drafting of hydro dynamical characteristics of oscillating
cylinder or elastic plate (based on experimental values)
9. Review of patents of wind-hydro-generators with oscillating wing,
cylinder or elastic plate (patent copy).
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