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Nuclear power plants in czech republic

Nuclear power plants in czech republic. Jan Zrno D4 -90. Temelin Dukovany. Temelin - history. 1980 - Czechoslovakian goverment accredit the construction of Temelin nuclear powerplant. 1985 – Energoprojekt company elaborate project documentation for construction. 1987 – Construction started

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Nuclear power plants in czech republic

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  1. Nuclear power plants in czech republic Jan Zrno D4 -90

  2. Temelin Dukovany

  3. Temelin - history • 1980 - Czechoslovakian goverment accredit the construction of Temelin nuclear powerplant. • 1985 – Energoprojekt company elaborate project documentation for construction. • 1987 – Construction started • 1990 – Constrution was reduced. The goverment accredited construction of just 2 units instead of 4, planed originally. • 2000 – Construction finished • 2002 – Trial operation of first unit. • 2003 – Trial operation of second unit. • 2004 – 13,4 TWh pruduced by temelin

  4. Geography • 510 above the see level • Largely surrounded by forests • 45 – 50 km far from state boundary (Austria, Germany) • 143ha piece of land (on hand ČEZ a.s.)

  5. Technical parameters of reactor • Reactor Type VVER 1000 • Installed capacity2 x 1000 MW • Heigh od pressure tank 10,9 m • Inner diameter of pressure tank 4,1. Outter 4,5 • Total weight 800t • 163 fuel cartridges (766kg, 563 kg of fuel) • 4 cooling loops (15,7 Mpa – operating pressure) • Temperature of the cooling medium in front of the entrance to active zone – 290°C • Temperature of the cooling medium in the output from to active zone – 320°C • Discharge 84 600 m 3/h • Inner diameter of major recirculation line 850 mm • Outer diameter of major recirculation line 995 mm

  6. Steam turbines • Steam turbine: nominal rpm - 3000 • Steam discharge (100% of power) 5262,9 t/min Coling shafts: • Height: 154,8 m • Foundation diameter: 130,7 m • Crest diameter: 82,6 m • Thickness of wall: 0,9 – 0,18 m • Weight: 27 500 t

  7. Planed annex of Temelin • Last years, the nuclear power is epericing the rebirth all around the world. • Annex of Temelin (another 2 units quarantee coverage of increasing consumption of electricity after 2020, sufficient reserve of power for stability of electric grid) • Original project – 4 units (build-up of remaining 2 units fully exploit originally designed infrastructure • Price of project still unknown (after concractor selection procedure) • Own sources of ČEZ (bank loan)

  8. Technology – new units • Several variants. • Pressure water reactor (PWR). II and III generation • Temelin and dukovany – II generation AES-2006 – derived from previous two units • Atomstroyexport and Gidropress companies • 1113 MW

  9. Areva EPR • Developed by AREVA company • Derived from N4 and Konvoi reactors actually in operation in France and Germany • 1600 Mw Westinghouse AP1000 • Developed by Westinghouse company. 50 years of experiences. • F.e. 4 block in China actually in construction • 1117 MW

  10. Nuclear waste depository in CR • Responsibility for safety deposition comply with atomic law. • 50 CZK / MWh of electricity produced in nuclear power plants. • All financial resources are cumulated in „atomic account“ which provide money for all liabilities connected to nuclear waste depository. • Majority of wastes produced by nuclear power plants are low activity nuclear wastes (lost its activity in several hundreds of years) • Bigest radioactive waste disposal – Dukovany (55 000 m3) • Sufficient capacity for whle lifetime of Temelin and Dukovany

  11. Atomic energy around the world • February 2010: • 29 countries • 436 nuclear reactors in operation • Total instaled power 372 693 MW • 15 % of all electricity produced (worldwide) • 53 reactors in 13 countries in construction • 142 reactors construction are in project stage • Totaly 327 rectors planned worldwidely (343 000 MW) • USA, France, Japan, Russia, etc. • 65% of PWR reactors worldwidely

  12. Thank you for your attentione

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