Francis Turbines
www.litostrojpower.com
A reliable and efficient solution in the green energy production• Reliable and eco--friendly• Heads from 10 m up to 750 m• Wide operating range of heads and discharges• Flexible operation at part load and deep part load• Outputs up to 350 MW• Runner diameters up to 7,000 mm• Solution tailored to customer needs• High efficiency level
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FRANCIS TURBINES
Head H [m]
Dis
char
ge Q
[m3 /
s]
10 MW20 MW
50 MW
100 MW150 MW
200 MW300 MW
500 MW
0,1
1
10
100
1000
1 10 100 1000
2 kW
5 kW
10 kW
20 kW
50 kW100 kW 200 kW
500 kW1 MW
2 MW5 MW
FRANCIS TURBINES
Head H [m]
Dis
char
ge Q
[m3 /
s]
10 MW20 MW
50 MW
100 MW150 MW
200 MW300 MW
500 MW
0,1
1
10
100
1000
1 10 100 1000
2 kW
5 kW
10 kW
20 kW
50 kW100 kW 200 kW
500 kW1 MW
2 MW5 MW
FRANCIS TURBINES
Head H [m]
Dis
char
ge Q
[m3 /
s]
10 MW20 MW
50 MW
100 MW150 MW
200 MW300 MW
500 MW
Printed: January 2018
Litostroj Power Francis turbines are designed in simple and rigid manner to enable ease of maintenance of all main unit parts. Francis unit is considered as most simple and robust machine that can be used for transformation of water potential energy to mechanical power via fixed runner blades and further to electrical grid. Our turbines excel in reaching high efficiency levels.
Types of Francis turbine• Vertical Francis units• Horizontal Francis units• Vertical or Horizontal Francis units with
Pressure Regulating (or Ramping) Valves• Double Francis units• Twin and Camel-back horizontal Francis
units
Application range• Heads from 10 m up to 750 m• Wide range of discharges• Operating at part load and deep part load• Outputs up to 350 MW
Advantages
PerformanceFrancis turbines reach highest efficiencies and highest power output of all water turbines. Each turbine is hydraulically optimized using CFD calculation and model tested in our hydraulic laboratory in order to provide optimal solution and maximum performance and value for customer.
ReliabilityMechanical design process of Francis turbines is focused on robustness and reliable operation. As a result, our Francis turbines can operate reliably and safely over several decades with minimum maintenance.
FlexibilityLitostroj Power latest hydraulic and mechanical developments on Francis turbine runners enable our turbines to continuously and safely operate over wide operating ranges, covering part load, deep part load and in special cases even operating from 0-100% power output.
Tailored solutionsFrancis turbines can be designed in vertical or horizontal configuration. Horizontal Francis unit arrangements are limited by its capacity and size for which Litostroj Power can provide single or double runner configuration. Advantage of horizontal double Francis units is compact design, providing smaller units in size and being competitive in price. For large units vertical arrangement is preferred.
To reduce drat tube vortex effect on stable operation of the turbine and allow a wide range of operation air admission under the turbine runner either through the unit shaft or through the special piping provisions is supplied. For special applications regulation of air admission can be provided.In case of penstock safety (pressure rise) or ramping requirements, pressure relieve valves (PRV) or Energy Dissipation Valves are installed. PRV is hydraulically or electrically connected to the turbine regulation system and acts as penstock protection system which synchronously redirects the water discharge from the turbine to the PRV during fast distributor maneuvers.
Manufacturing featuresLitostroj Power produces all the turbine runners in-house to ensure best quality of the turbine most important part. For low-head turbine runners we usually use welding technology where crown and band are welded together with runner blades. Blades are cut-out from steel plates, hydraulically pressed with template to appropriate shape and CNC machined to its final hydraulic shape.For middle and high-head Francis runners CNC machining of the integrally forged part is an option. For large high-head Francis units, Litostroj Power possess the technology to manufacture the runners from the two CNC machined parts that are later welded in the middle of the runner blade where lowest stresses in material are expected.
Selected references from 2010Project name Year Project type Shaft orient. H [m] Pt [kW] D [mm] No. of UnitsLešće, Croatia 2010 New project Vertical 39,57 22038 2933 2Wawaitin, Canada 2010 New project Vertical 36,49 7760 1800 2Moste IV, Slovenia 2010 Refurbishment Vertical 157,62 8540 850 1Bone Creek, Canada 2010 New project Horizontal 148,38 9574 700 2Sheldrake, Canada 2012 New project Horizontal 63,77 12372 1160 2Toro 3, Costa Rica 2013 New project Vertical 245 24020 1126 2Lower Baker, USA 2013 New project Vertical 73,67 23095 2150 1Val Jalbert, Canada 2013 New project Horizontal 99,03 17996 1110 1Doblar 1, Slovenia 2014 Refurbishment Vertical 41,9 9518 2127 3Rama, U1, Bosnia and Herzegovina 2015 Refurbishment Vertical 285 81788 2750 1Rama, U2, Bosnia and Herzegovina 2015 Refurbishment Vertical 293,61 95700 1960 1Dubrovnik, Croatia 2016 Refurbishment Vertical 269,65 113166 2400 2Big Silver Creek, Canada 2016 New project Horizontal 113,95 11420 1160 4Hydro Canyon Saint Joachim, Canada 2016 New project Horizontal 64,25 6214 1160 2Lipno, Czech Republic 2017 Refurbishment Vertical 162 67000 2150 2Karakurt, Turkey 2018 New project Horizontal 129 46450 2166 2Karakurt - eco unit, Turkey 2018 New project Horizontal 129 9600 965 1Kamburu, Kenya 2018 Refurbishment Vertical 74 35000 2360 3Stejaru II, Romania 2018 Refurbishment vertical 127 55000 2300 2Stejaru I, Romania 2020 Refurbishment vertical 127 27400 1600 4
LITOSTROJ POWERLitostroj PowerLitostrojska cesta 50, 1000 LjubljanaSloveniaTel: +386 1 5824 102Fax: +386 1 5824 171E-mail: [email protected]
LITOSTROJ POWERČKD Blansko EngineeringČapkova 2357/5, 678 01 BlanskoCzech RepublicTel: +420 533 309 560Fax: +420 533 309 557E-mail: [email protected]
LITOSTROJ POWERLitostroj Hydro45, Pacifique EstBromont (Quebec)Canada, J2L 1 J4Tel: +1450 534 2929Fax: + 1450 534 0136E-mail: [email protected]
LITOSTROJ POWERCairo Office47, Ramses StreetP.O. Box 2370, Floor 2Cairo, EgyptTel: + 202 2575 39 75Fax: + 202 2575 35 36E-mail: [email protected]
Most common type of water turbine in use today, characterized by high efficiency levels, reliable operation and robust design.
Lešće HPP; Croatia, 2 x 22 MW, Vertical Francis turbine
