This technology allows dams to long irrigation canals large enough capacity hydroelectric power station using modules from jet turbines.

1. Конкурс «Техностарт 2014»
Phone +995 57 407 47 27; mail: gsmprado@yandex.ru; skype: george_mamulashvili
Project of the New Instream jet underwater
technology in Georgia
George Mamulashvili
George Mamulashvili

2. Конкурс «Техностарт 2014»
Mainland hydraulic potential in TWh, which can be used with
new technologies of producing electric energy by hydro-
power stations operating in rivers without the device of
artificial drop to obtain the pressure at the turbine.

3. Underutilized land-and tidal-casting power
or the amount of the possible use of new
technologies.

4. Конкурс «Техностарт 2014»
Compare prices on produce traditional energy sources and
using new technology without the pressure of HPP. The cost
worked out per kilowatt hour without pressure HPP below 1
cent, due to the lack of large-scale hydraulic engineering
construction works.

5. Gravity run of river hydroelectric plant with a turbine
of Savenius with a capacity of 25 kilowatts.

6. The project to use the irrigation channel for more
energy in the amount of hundreds of thousands of
kilowatt hours.

7. Installation of supporting metal I-beam of tubular cross-
section with the mechanism of rotation of the rocker arm
with the Savonius turbine and vertical generator.

8. Rocker with Savonius turbine and vertical generator.

9. Estimated value of the applied reactive free-flow
underwater turbines in the irrigation channel in the city
of Kutaisi in 50 km from capital of Georgia Tbilisi.
El Power (kw) Mech power (kw) flow (m3/s) N (RPM) inlet dia (m) neck dia (m) outlet dia (m) turb. Length (m) shaft dia (mm)
75 100 3 250 1,5 0,73 1,5 1,23 135
100 133 4 240 1,7 0,82 1,7 1,29 144
150 201 5,9 200 2 0,97 2,1 1,56 175
200 266 7 200 2,2 1,04 2,3 1,63 192
250 333 8,8 175 2,5 1,15 2,5 1,87 216
300 399 10,3 165 2,7 1,23 2,7 2,01 234
350 468 12,8 130 3 1,44 3,1 2,44 267
400 534 13,9 125 3,1 1,42 3,2 2,44 275
450 601 16,5 120 3,4 1,60 3,5 2,65 297

10. The mounting block of the five windmill crooked
umbrella jet turbines with a capacity of 1 MW.

11. Underwater jet turbine with a capacity of 200 kW
The turbine shaft
Vortex turbine
Diffuser
Deflector
Collecting bell
კონტროლერი
Support frame
Protective grille

12. Characteristics 200 kW turbine
fall height (m) 0
design flow rate (m3/s) 7
flow speed (m/s) 1,8
El power (kW) 200
N (rpm) 200
Inner casing dia (mm) 350
depth turbine under surface (m) 2,5
initial Static pressure (Pa) 125838
General Input data
Inlet dimensions
section (m²) 3,9
duct diameter (m) 2,2
inlet turbine section (m²) 0,73
Vax inlet turbine (m/s) 9,64
inlet ext diameter (m) 1,04
Outlet dimensions
aperture angle (°) 44
impeller axial length (m) 1,63
Outlet diameter (m) 2,3
outlet Vax (m/s) 1,8
generator speed multiplicator ratio
Rotation speed (rpm) 200 350 1,75
eff Mechanical power (kW) 266 500 2,50
T orque (daN.m) 1269 750 3,75
Overhaul
dH (kJ/kg) 44,8
total dH (kJ) 314
inlet speed (m/s) 9,6
initial total pressure (Pa) 1,3E+05
final total pressure (Pa) 1,7E+05
T otal dp (Pa) 4,6E+04
outlet turbine dp (Pa) 4,5E+04
final static pressure (Pa) 9,1E+04
final static pressure (atm) 0,90
dH turbine (kJ/kg) 44,7
total dH turbine (kJ) 313
Isentropic Efficiency (%) 99,8
polytropic efficiency (%) 85
Estimate max El. Power (kW) 200
root Cavitation factor 1,04
thermodynamic results

13. ro (kg/m3) 1000
inlet Dia (m) 4,1
Flow Speed (m/s) 4,8
Height (m) 3,7
Qv (m3/s) 63,4
Mech Power (kw) 2299,42
net power (kW) 1379,65
Elec Power (kW) 1000,25
Speed (rpm) 148,6
Spec speed (rps) 1,00
multiplicator ratio 1,05
357,3
Generator speed 375
Results
Characteristics of reaction turbines with a capacity of 1000 kW
ro (kg/m3) 1000
inlet Dia (m) 2,25
Flow Speed (m/s) 4,8
Height (m) 6
Qv (m3/s) 19,1
Mech Power (kw) 1122,96
net power (kW) 673,78
Elec Power (kW) 505,33
Speed (rpm) 212,7
Spec speed (rps) 1,02
multiplicator ratio 2,75
Results
channel speed 1,44 m/sec

14. 06/29/2016
initial flow speed (m/s) 2 number of units 5
inlet speed (m/s) 4,4 mech. power/unit (kW) 225
Elec Power (kW) 500 Elec. Power/unit (kW) 100 width (m) 2
Betz limit 0,593 inlet section (m²) 5,3 Height (m) 2,6
efficiency 0,75 Venturi section (m²) 11,6 total length (m) 23,8
Mech Power (k) 1124 inlet diameter (m) 2,6
inlet section (m²) 26,4 venturi diameter (m) 3,8 angle venturi (°) 30
venturi section (m²) 40,1 Mass flow (kg/s) 23228 Height (m) 2,6
0,44 Max width (m) 4,4
Sections ratio 2,20 0,66332 length (m) 4,5
diameter ratio 1,5 2,55077 Installation length (m) 28,2
venturi diameter (m) 7,1
Inlet diameter (m) 5,80
Mass flow (kg/s) 116139
Intern diameter (m) 1,5
Ext diameter (m) 5,99
synchronus generator
height (m) 2,5 400 V - 50Hz-100 kW
diameter (m) 1,5 With frequency variator
Betz coef 0,593
density (k/m3) 1000
Section (m²) 3,75
Rotation Speed (rpm) 112
Power (kw) 95
Torque m.daN 807,2
Generator speed (rpm) 375
Mult. Ratio 3,35
Elec. Power (kw) 71,0
pressure/blades (dan/m²) 968
Horizontal turbine 500 kW
Venturi dimensions
Construction data
rectangular section
Savonius turbine

15. fall height (m) 0 T otal T wist angle (°) 180
design flow rate (m3/s) 28 expansion angle (°) 43
flow speed (m/s) 1,8 nb of distributor blades 9
El power (kW) 1000 nb of impeller blades 8
N (rpm) 100 Iopt impeller (°) 2,5
Inner casing dia (mm) 900
depth turbine under surface (m) 3
initial Static pressure (Pa) 130740
Horizontal Axial Turbine
Impeller datasGeneral Input data
dH (kJ/kg) 56,0
total dH (kJ) 1569
inlet speed (m/s) 10,7
initial total pressure (Pa) 1,3E+05
final total pressure (Pa) 1,9E+05
T otal dp (Pa) 5,8E+04
outlet turbine dp (Pa) 5,6E+04
final static pressure (Pa) 1,1E+05
final static pressure (atm) 1,1
dH turbine (kJ/kg) 56,0
total dH turbine (kJ) 1569
Isentropic Efficiency (%) 100
polytropic efficiency (%) 85
Estimate max El. Power (kW) 1067
Cavitation factor 1,14
thermodynamic results generator speed multiplicator ratio
Rotation speed (rpm) 100 350 3,50
eff Mechanical power (kW) 1333 500 5,00
T orque (daN.m) 12732 750 7,50
Overhaul
Inlet dimensions
section (m²) 15,6
duct diameter (m) 4,5
inlet turbine section (m²) 2,61
Vax inlet turbine (m/s) 10,74
inlet ext diameter (m) 2,09
Outlet dimensions
aperture angle (°) 43
impeller axial length (m) 3,37
Outlet diameter (m) 4,6
outlet Vax (m/s) 1,8

16. To test the physical model of the turbine in the laboratory of
hydrodynamics of the St. Petersburg Polytechnic University.

17. What are the technology of underwater jet turbines
better than other technologies.
• The horizontal jet turbine more powerful than the vertical turbine
Savonius several times.
• The turbines with small dimensions can be installed in rivers with
velocity more than 1.8 m/sec at a depth of 1 m.
• The susceptibility of the flow is highest of all known turbines as it has a
large surface of turbine blades.
• Turbines have a high torque value on the shaft that allows the use of
inexpensive gearboxes.
• The manufacturing costs of turbines are low, since blades can be made
on special bending machines with high performance.
• Power plants with reaction turbines scalable.
• A low cost of manufacture, construction and operation, allows the use of
such hydroelectric power station under different conditions and their
mobility allows you to disassemble and assemble, depending on the
need.