Temelin power uprate

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Temelin power uprate

  1. 1. Author: Martin Bíca NPP Engineering Manager ČEZ a.s., NPP Temelín, 37305 Temelín martin.bica@cez.cz NPP Temelín U1,2 Power Uprate Project International Topical Meeting VVER 2010 Experience & Perspectives 1 ÷ 3 November 2010, Prague, CZ
  2. 2. Temelín Introduction PWR, 2 x VVER-1000 V-320 Rated Thermal Power: 3000 MWt Generator nom. output: ≈ 1016 MWe  10/2000 – U1 1st. criticality  12/2000 – U1 1st. connection to grid  01/2002 – U1 – 100%  05/2002 – U2 1st. criticality  12/2002 – U2 1st. connection to grid  03/2003 – U2 – 100% Annual Production: 13,25 TWh (2009), 13,8 TWh (2010 – plan) Safely 15-TERA Program - to get into the first quarter of operated NPPs worldwide based on safety indicators - to achieve and maintain 15 TWh annual production
  3. 3. N = 100 % (3000 MWt) …………….. N = 104 % (3120 MWt) …………….. N = 1016 MWe N = 1059 MWe N = 1081 MWe ~ NPP Temelín – Power Uprate Project Uprate of reactor thermal power to 3120 MWt New turbine LP parts with increased thermodynamic efficiency (+22 MWe) Reactor power uprate + new LP parts = increase of power output: 1081 MWe
  4. 4. NPP Temelín – Power Uprate Basic Principles  Current TVSA-T fuel (as licensed for 3000 MWt)  Analyses independent on particular reload scheme, supporting core operation with cycle lengths 260-480 EFPD  Flow-rates, functions and volumes of safety systems remain unchanged  Safety analysis acceptance criteria remain unchanged (i.e. same as for 100%)  Steam Generator nominal secondary pressure unchanged  Changes expected in trip setpoints, methodologies, control systems settings, … Power Uprate Project is based on exploitation of the reserves existing in the current design => no extensive modifications of plant systems / equipment
  5. 5. NPP Temelín – Project Scope Fuel and licensing • Update of core design and safety evaluation methodologies • 1st 104% cycle core design • Safety analysis • SAR revision Transient analysis, optimization of I&C setpoints Evaluation of power uprate impact on systems & equipment parameters / performance • Equipment strenght & lifetime reevaluation • SG secondary side performance • Specification of necessary modifications … Expected modifications: - Enhancement of generator, generator main breaker, encapsulated leads cooling - Modifications of I&C systems settings (protection, limitation, control systems)
  6. 6. NPP Temelín – Project Scope (cont.) Miscellaneous other evaluations Power uprate impact on … operation, chemistry, equipment qualification … Specification of startup tests and measurements Update of impacted operational documentation Environmental impact evaluation No need for increase of any effluent limits or other environment related limits (confirmed by already completed calculations)  no formal EIA procedure necessary
  7. 7. NPP Temelín – Project Organisation ČEZ a.s. OWNER JSC TVEL NRI Řež OKB Gidropress (RCS Designer) Main Subcontractor Amendment 14 to Fuel Contract Uprate Contract Equipment Manufacturers Uprate Contract other czech organisations
  8. 8. NPP Temelín – Project Schedule 2010 2011 2012 Contract, Initial data transfer Steady State analysis Transient Analysis I&C Setpoint Study … Update of Core Design / Safety Eval. Meth. Core Design for 1st 104% cycle Safety Analysis, SAR revision, … Equipment Analysis … Equipment Modifications Operational Documentation Update Ministry of Industry – Request for change in facility utilization State Office for Nuclear Safety – Request for modification permission U1 Project Implementation Reference Schedule => several risks ! …
  9. 9. NPP Temelín – Power Uprate Project Questions / Remarks
  10. 10. NPP Temelín – Power Uprate Project Questions / Remarks

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