Appendix 10 Cost Reduction Measures

  • 1. Shorten fuel assemblies
  • 2. Eliminate Lower Inlet Modules and associated Bypass Flow Modules
  • 3. Reduce core pressure drop
  • 4. Eliminate hydraulic hold-down
  • 5. Eliminate gas tagging and associated failed fuel monitoring system
  • 6. Eliminate head shield
  • 7. Replace ellipsoidal lower head with flat bottom
  • 8. Bottom mount RV
  • 9. Eliminate SRP
  • 10. Adopt 10-year refueling interval
  • 11. Eliminate RV volume reserved for in-vessel transfer
  • 12. Eliminate CCPs
  • 13. Eliminate IVTM
  • 14. Eliminate LRP
  • 15. Reduce EVST volume due to CCP elimination
  • 16. Eliminate Containment to RSB hatch
  • 17. Reduce size of RSB to a transfer room, fuel handling cell, and shipping room
  • 18. Eliminate IRP (OVR)
  • 19. Eliminate UIS jacking mechanism (OVR)
  • 20. Eliminate transfer positions in RV
  • 21. Eliminate need for valves mounted on RV and EVST (OVR)
  • 22. Eliminate Plug Handling Machine (OVR)
  • 23. Eliminate need for purging space between valves (OVR)
  • 24. Eliminate EVTM (OVR)
  • 25. Eliminate Auxiliary Handling Machine
  • 26. Eliminate EVTM rails through containment and RSB
  • 27. Use Superphénix steam generating system – eliminate separate evaporators and superheater, recirculation pumps, steam drum
  • 28. The elevated unguarded PHTS piping concept is abandoned, permitting greatly reduced containment volume. IHXs are brought in closer to reactor reducing requirements for expansion loops
  • 29. Centrifugal pumps are replaced with EM pumps in the primary and intermediate circuits.
  • 30. Two primary loops down from three.
  • 31. Elimination of requirement for pony motors on PHTS and IHTS pumps
  • 32. Check valves are eliminated from PHTS.
  • 33. Guarded PHTS piping eliminates need for liners on PHTS vaults.
  • 34. Adopt rectilinear vs. cylindrical containment structure and eliminate the requirement for a single elevation basemat.
  • 35. Significantly reduce containment volume
  • 36. Eliminate requirement for single elevation operating floor. The requirement to have a floor that is accessible during operation inside containment is unnecessary.
  • 37. Reduce containment design pressure from 10 psi to 5 psi or any pressure that will permit reliable leak testing
  • 38. Eliminate separate confinement building
  • 39. Eliminate containment cooling system
  • 40. Eliminate air filtration processes that extend beyond CAPS
  • 41. Eliminate all cell liners not required for containment leak testing
  • 42. Significantly reduce 1E loads
  • 43. Eliminate requirement for electric power to maintain safe shutdown
  • 44. Eliminate requirement for IHTS and SGS to be safety related
  • 45. Eliminate two Primary Sodium Storage Tanks in RSB, each having 60,000 gallon capacity
  • 46. Reduce size of Overflow Vessel to size required to accommodate heat-up from refueling conditions to full power allowing margin for TOP transients at power.
  • 47. Use HVAC cooling (vs. NaK) for the primary cold traps.
  • 48. Combine primary system makeup pump drain vessel with primary system drain tank.
  • 49. Elimination of tritium removal unit from CAPS
  • 50. Eliminate unnecessary features from the IGRP system
  • 51. Replace NaK with an updated version of Dowtherm J everywhere it exists in the plant, where possible.
  • 52. Defer or eliminate radwaste system for treatment of effluent from the spent fuel cleaning facility.
  • 53. Eliminate control rod ejection accidents from the design basis.