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Osmotic power plant

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osmotic power plant

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Osmotic power plant

  1. 1. PLANT
  2. 2. Power consumption has been increased enormously across the world so the power generation should be increased. There are many ways of power generation. Some of them leads to environmental pollution. So, non conventional power plants must be encouraged.
  3. 3. SOME TYPES OF NON-CONVENTIONAL POWER PLANTS HYDRO SOLAR GEOTHERMAL WIND
  4. 4. <ul><li>All power plants shown above are effected by the climatic conditions </li></ul><ul><li>Cannot be operated through out year </li></ul><ul><li>a new type of power plant which is non conventional and can be operated 24/7 is </li></ul><ul><li>OSMOTIC POWER PLANT </li></ul><ul><li>O smotic power stands as one of the most promising and yet unexploited new, renewable energy sources for the near future . </li></ul><ul><li>Osmotic power plant is literally WORLD CHANGING TECHNOLOGY . </li></ul><ul><li>The power plants are both noise and pollutant free. </li></ul><ul><li>Osmotic power is a relatively new energy conversion concept even though osmosis, a spontaneous process which takes place in all living organisms, has been known for several hundred years. </li></ul><ul><li>Technology development for the utilization of osmotic pressure in power generation goes back only 30 – 35 years when scientists proposed methods for osmotic energy conversion. </li></ul>
  5. 5. Sidney Loeb Thor Thorsen Torleif Holt The late US professor Sidney Loeb had the idea to use membranes for desalination in the Early 1970s when he discovered that a similar process could be used to generate power. Back then,power prices were low that no one was interested in investing to develop this technology. Later on, the researchers Dr. Thor Thorsen and Dr. Torleif Holt at SINTEF began to research osmotic power in 1996. Inventor & Researchers Of Osmotic Power Plant
  6. 6. Osmosis means passage of water from a region of high water concentration (often freshwater) through a semi permeable membrane to a region of low water concentration (often NaCl). The membrane only lets water molecules pass. Salt molecules, sand, silt and other contaminants are prevented to do so. OSMOSIS:
  7. 7. When placing a semi -permeable membrane (i.e. a membrane that retains the salt ions but allows water through) between reservoirs containing fresh water and sea water respectively, a net flow of water towards the salt water side will be observed because of osmosis. If the saltwater compartment has a fixed volume the pressure will increase towards a theoretical maximum of 26 bars. This pressure is equivalent to 270 meters high water column.
  8. 8. FIRST OSMOTIC POWER PLANT PROTOTYPE BUILT IN NORWAY This is built by the company Statkraft , opened in November 2009.
  9. 9. SEA LEVEL OSMOTIC POWER PLANT SYSTEM ANALYSIS: The flexibility and adaptability of the power plant has been of major interest. There is a variety of different designs of a plant, and a selection of these has been modeled to compare the efficiency and energy production. Below three alternatives are discussed and the results from the simulations are given. SUB SEA PRO PLANT PRO PLANT BELOW THE SEA LEVEL
  10. 10. <ul><li>IMPORTANT PARTS IN OSMOTIC POWER PLANT: </li></ul><ul><li>The membrane is the heart of the technology. </li></ul><ul><li>Turbine is needed to generate electricity. </li></ul><ul><li>Pumps and pipes to transport water throughout the plant. </li></ul><ul><li>Water cleaning unit (to prevent clogged/damaged membranes). </li></ul><ul><li>Cleaning unit for the membranes (which must be washed regularly) </li></ul><ul><li>MEMBRANE DEVELOPMENT: </li></ul><ul><li>Membrane producing at least 4 W/m2 to produce power at a competitive price level </li></ul><ul><li>At starting of this concept, the modest efficiency of less than 0.1 W/m2. </li></ul><ul><li>The best prototype membranes are equivalent to 4 W/m2, although this has to be verified in PRO operation. </li></ul>
  11. 11. <ul><li>PLANT CAPACITY: </li></ul><ul><li>To achieve an output of 1 MW, one cubic meter of freshwater (per second) must be mixed </li></ul><ul><li>with two cubic meters of seawater at 12 bar. </li></ul><ul><li>As the technology is based on modules, the power plant can be scaled up or down according </li></ul><ul><li>to the available resources. </li></ul><ul><li>POWER GENERATION POTENTIAL: </li></ul><ul><li>Osmotic power has a global potential of 1600-1700 TWh annually. </li></ul><ul><li>Equivalent to 50 per cent of current power production in the EU. Efficiency Of The Plant: </li></ul><ul><li>SITE SELECTION FOR PLANT CONSTURCTION: </li></ul><ul><li>Anywhere where clean freshwater runs into the sea. </li></ul><ul><li>Preferably close to consumers/the grid, along the coast, where the water in the rivers is often very clean. </li></ul>Plant location: Sea level Below sea level (-5 meters) Sub-sea plant (-125 meters) Energy efficiency 70% 81% 79%
  12. 12. <ul><li>ADVANTAGES OF OSMOTIC POWER PLANT: </li></ul><ul><li>It is renewable. </li></ul><ul><li>There is no risk of running out of salt because of osmotic power produced. </li></ul><ul><li>This process of creating energy does not consume salt, it only utilizes force of water to move. </li></ul><ul><li>Osmotic-produced energy has a minimal environmental impact. </li></ul><ul><li>It is a very &quot; clean &quot; process. </li></ul><ul><li>The amount of heat that occurs in this process would raise the temperature to less than half a </li></ul><ul><li>degree celsius, which is not harmful to the marine organisms. </li></ul>
  13. 13. <ul><li>DISADVANTAGES : </li></ul><ul><li>Osmotic energy is extremely expensive. </li></ul><ul><li>About 36 times as expensive as a conventional power plant . </li></ul><ul><li>Protection of the marine organisms from the turbine and other machinery. </li></ul><ul><li>Engineering and design problems. </li></ul><ul><li>CONCLUSION: </li></ul><ul><li>  This paper has given a broad introduction to the concept of osmotic power and the latest development on the way to Commercialization. </li></ul><ul><li>Statkraft will continue the effort in developing osmotic power into an available source of new, renewable and environmental friendly energy source for the near future. </li></ul><ul><li>  </li></ul>
  14. 14. ? Any Questions
  15. 15. Thank You

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