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Students Vincent Duplantier Florian Feyt Hoai Dang Leu Teachers Jacques Bernard Mary Ann Flannery.

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Presentation on theme: "Students Vincent Duplantier Florian Feyt Hoai Dang Leu Teachers Jacques Bernard Mary Ann Flannery."— Presentation transcript:

1 Students Vincent Duplantier Florian Feyt Hoai Dang Leu Teachers Jacques Bernard Mary Ann Flannery

2 I. Presentation of Hydraulic Turbines 1. Hydraulic turbines overview 2. Hydroelectric plant installation 3. Three types of Hydraulic Turbines II. Choice method of Hydraulic Turbines Conclusion 2

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4  Hydraulic turbines : liquid turns blades to produce rotation  Potential/Kinetic power -> Mechanical Power -> Electric power  Hydroelectricity Advantages : Clean and Renewable Disadvantages : damage of ecosystem, loss of land 4

5 Components of a Turbine :  Runner : rotational part (Shaft + blades)  Diffuser (at output) : channel- shaped increasing in size  Distributor : optional component at the input that controls the angle of attack 5

6  Flow: small head, high velocity (river)  Flow: great head (in reservoir) 6

7 7  Action turbine  No diffuser  High operating head  The wheel is not submerged  The number of opened nozzle changes the power

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9 9  Reaction turbine  Change of the flow pressure  Operating head between 20 and 500 meters  Two main components: upstream guide vanne and runner

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11  Evolution of the Francis turbine  The guidvanes and runner adapted to the waterflow  High efficiency for a wide range of water flow  Can be used as a pump for Storage pumping 11

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15  Magnet 2 poles Magnetic field + winding = electric current  Alternator Produces alternating electric power Qualified by the number of magnetic poles 15

16  Electric Network Stable characteristics Frequency : 50 Hz  Alternator Frequency Speed of the rotor Number of poles 16 Alternator

17  For a same electric frequency (50 Hz) : Low speed  many poles High speed  less poles  Many poles = expensive pairs – 75 rpm 4 pairs 750 rpm

18  Characteristics of water flow and turbine Power of the turbine: Angular velocity: 18 N

19 Comparison of the specific speed with widely built turbines 19

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21  One of the first sources of electricity  High technological level and mastery  Great efficiency  The main source of renewable energy  High percentage of total electricity production is hydroelectricity in some countries 21 Norway – 98% Brazil – 86 % Canada – 61 %


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