Ultra Low Head Hydro Potential

Transcription

1 An Innovative Solution for Harnessing Ultra Low Head Hydro Potential New Delhi, Abhishek Swarnkar AHEC

2 Contents 1. Attractiveness to Hydro Power Plant Developer 2. Need for Sustainable Solution 3. Tapping the Low Head Potential 4. Introduction to STREAM DIVER TM i. Construction details ii. iii. iv. Typical Application Range Assembly-Operation- Services Prototype and results. v. Plant Configuration Abhishek Swarnkar AHEC

3 1. Attractiveness to Hydro Power Plant Developer s Mandar Pachegaokar India Infraline

4 Attractiveness to Hydro Power Plant Developer s Following features are attractive to Hydro Power Developer s for Electro- Mechanical Equipment's Short Development Cycle of the Project Low capital Investment Ecological and Economical Solutions Less Maintenance time and easy to do. Easy to operate Abhishek Swarnkar AHEC

5 ECONOMICAL SUSTAINABILITY ENVIRONMENT FRIENDLY TECHNICALLY SIMPLE 2. Need for Sustainable solution Abhishek Swarnkar AHEC

6 Need for Sustainable Solution Since India and majority of Asian countries are starving for the energy to satisfy their basic needs, it is imperative to come up with sustainable and innovative solution which shall satisfy the developers and investors expectations. Moreover there is still huge potential offered by of ultra low head sites and avenues which can offer good source of energy. Sustainable solution shall consider the factors like initial investments, Environmental Friendly and Technically Simple Solutions. Sustainability shall offer the betterment of human life with satisfaction of needs. Abhishek Swarnkar AHEC

7 3.Tapping the Low Head Potential Mandar Pachegaokar India Infraline

8 Tapping the Low Head Potential Head available across Check dams Head available in Irrigation canals Abhishek Swarnkar AHEC

9 Tapping the Low Head Potential Head available across Flood control dams Head available in exit of cooling water of large Thermal Plants Abhishek Swarnkar AHEC

10 4.Introduction to StreamDiver Abhishek Swarnkar AHEC

11 I. Construction Details Permanent magnet generator Water-floated 2 Thrust and guide bearings Water-lubricated 3 Turbine bulb Water-filled no dynamic seals 4 Turbine housing with fixed guide vanes 5 Propeller runner Safe low-maintenance due to absence of dynamic seals and peripheral systems Abhishek Swarnkar AHEC

12 Water-Floated Permanent-Magnet Generator The air gap is water-floated Due to the application of high-performance magnets there is no need for active rotor cooling Rotor and stator are static-sealed Abhishek Swarnkar AHEC

13 Water-Lubricated Sleeve Bearings Process water-lubricated bearings, 100% oil-free design Bearing design based on hard-soft pairing principle. Synthetic bearing pads and shells with high-strength abrasion surface Bearing concept has proven itself in other Voith products, e. g. tidal flow turbines, HyTide and Voith Inline Thruster Wear resistance of bearings has been tested and analyzed in bench tests Abhishek Swarnkar AHEC

14 Commercial Benefits Through Easy Technology Economical solutions utilizing easy and proven technology Eco-friendly due to oil-free operation Reduced technical complexity and low maintenance Standardized modular design Versatile applications with minimum installation requirements Abhishek Swarnkar AHEC

15 ii. Application Range Modular concept with 5 different runner diameter Runner diameter between 790mm 1310mm Between 6m 10m Head customized solution Unit flow is limited by runner diameter Overlapping application range Abhishek Swarnkar AHEC

16 Typical Operation Diagram Example, 15 StreamDiver units fixed speed vs. variable speed Multi unit application: 15 units 8 units 2 units No gate or blade regulation Flow regulation via shut on and off individual units Optional: flow regulation via speed variation Step less flow regulation only with variable speed units Abhishek Swarnkar AHEC

17 iii. Assembly Operation Service The shutdown of the turbine occurs via an automatic shut-off device (gate valve) The turbine is embedded in a guide frame and can be retrieved via a mobile crane without draining the water Turbine maintenance occurs outside the power station in a workshop kh Abhishek Swarnkar AHEC

18 Assembly Sequence Low requirements regarding assembly and disassembly in terms of tools and other equipment Easy alignment of bearings and turbine shaft The rotor is fixed by positioning devices, in order to ensure safe assembly in the event of high magnetic forces Low sensoric needs only temperature sensor and stator leakage sensor required Abhishek Swarnkar AHEC

19 Grid Connection Variants Grid Direct grid connection: PMG LS Synchronization by draft-tube gate High efficiency No flow rate or reactive power regulation PMG LS C Grid Grid connection with reactive power regulation: Reactive power regulation by compensation device High efficiency No flow rate regulation PMG LS FU Grid Grid connection with frequency converter: Synchronization by converter Stepless reactive power regulation possible Flow regulation via variable-speed operation Efficiency optimization to comply with head heights Abhishek Swarnkar AHEC

20 Prototype and Results. References Prototype Nussdorf Scope of supply: Main data: Turbines Type: 1xSD 13,1/K89-3 Generators Output: 1x kW Gears Head: 3,21-4,86m Digital and hydr. governors Speed: 333 min-1 Electrical equipment Year: 2012 Erection and commissioning Country: Austria Abhishek Swarnkar AHEC

21 References Bearing Test Rig Examination of operating behavior of water-lubricated bearings under realtime conditions with identification of wearing curves Robustness of bearings has been proven after one year of continuous operation with river water Wearing behavior with extreme amounts of sediments is currently tested (2 grams of quartz per liter of river water) Abhishek Swarnkar AHEC

22 References Plant Model Test Rig 1.Scope of supply: Main data: 2.Turbines Type: 1xSD 3,45/K Generators Output: 1 x 1,77kW Gears Head: 0,7-0,85m Digital and hydr. governors Speed: 568 min-1 Electrical equipment Year: 2013 Erection and commissioning Country: Austria Abhishek Swarnkar AHEC

23 Plant Configuration General approach Project Site Main Components of a Hydro Power Plant Power unit compartment Intake Trash rack / -cleaner Subsidiary building (for BoP/E and BoP/M Equip. Draft tube Shut off valves Outlet Final plant Concept Example (source: Voith) The main components of a hydro power plant need to be adapted to project specific requirements. The configuration process will be influence by local site condition, the customer and local regulations. Abhishek Swarnkar AHEC

24 Installation Example River Power Station Flooded power station with angular trash rack Flap gate positioned on top; injector effect can be utilized in the event of overflow Portal crane or passable/navigable weir system Abhishek Swarnkar AHEC

25 Installation Example Shaft Power Plant Concept patented by Munich Technical University with horizontally arranged trash racks Cleaning of trash racks by opening the weir flap Fish-friendly power plant concept Abhishek Swarnkar AHEC

26 Q & A Abhishek Swarnkar AHEC

27 Contact:Mandar Pachegaokar Tel.: mandar com Abhishek Swarnkar AHEC

28 Abhishek Swarnkar AHEC