Westinghouse-UK Partnership for Development of a Small Modular Reactor Nuclear Programme

Transcription

1 Westinghouse-UK Partnership for Development of a Small Modular Reactor Nuclear Programme Simon Marshall UK Business & Project Development Director Nuclear Power Plants 1

2 The Westinghouse Small Modular Reactor (SMR) Westinghouse Focus on Commercial Nuclear Technology Nearly 50 percent of the nuclear power plants in operation worldwide are based on Westinghouse technology Our newest design, the Westinghouse Small Modular Reactor (SMR), features innovative passive safety systems and proven AP1000 technologies based on Westinghouse s 50+ years of experience 2

3 800 MWt, > 225 MWe Integral Pressurised Water Reactor Pressuriser Standard electric heater rods Standard spray arrangement Steam Generator Package Standard, recirculating, once-through, straight-tube design External steam drum located outside containment for moisture separation Bolted Closure Flange Allows for removal of steam generator and pressuriser assembly during refueling operations Reactor Coolant Pumps Eight (8) standard seal-less canned motor pumps mounted horizontally Provides operator-desired forced reactor coolant flow Control Rod Drive Mechanisms Based on proven, standard AP1000 designs Modified to allow for placement within the harsh environment of reactor vessel 3 Reactor Core Licenced Westinghouse Robust Fuel Assembly (RFA) design 89 standard 17 x 17 fuel assemblies, 8- foot (2.4 m) active fuel height Optimized ZIRLO TM cladding 24-month refueling cycle

4 Containment Vessel & Plant Layout Submerged in Water Passive heat removal mechanism under LOCA conditions Annex Building Additional layer of fission product retention Core Makeup Tanks Four (4) tanks with heat exchangers for passive decay heat removal Radwaste Building Below Grade Location 32 ft. (9.7 m) diameter, 94 ft. (28.5 m) height vessel located below grade for enhanced security Nuclear Island Circulating Water Cooling Towers Removal allows for access and maintenance activities Equipment Hatch Turbine Building Integral Reactor Vessel 12 ft. (3.7 m) diameter 91 ft. (28 m) height Operation at Vacuum Reduction in convective heat transfer from reactor vessel Reduced corrosion, improved reliability of components and instrumentation Perimeter Fence In-Vessel Core Retention Accomplished by draining tanks of water to flood lower reactor vessel 4

5 Small Size, Large Power 1/25 th size of AP1000 Plant Containment Vessel 1/5 th power output of AP1000 Plant 5

6 Maximum Power, Minimal Footprint = Lower Cost Power Density defined as volume of nuclear island divided by reactor power output; Correlates directly with plant cost Smaller Footprint Less Volume Less Materials Lower Cost Power density can mitigate the potential loss of economy of scale for small modular reactors Nuclear island power density differentiates Westinghouse from other SMR reactor vendors Plant footprint also small; 225 MWe delivered through compact, self-contained 15 acre, 6 hectare site 220x less land required than solar 5500x less land required than wind 6

7 Benefits of Modular Construction 100% modular plant Super-Module Assembly Industry best-practices (shipbuilding, airline) utilised for modularity design Parts & Modules Sub-Modules Super-Module Leverages AP600 TM /AP1000 Building Assembly plant structural module designs Reduces construction duration and associated financing costs Super-Modules Buildings 7

8 Unmatched Experience and Expertise Regulatory Certainty Price Certainty We Buy Where We Build TM Delivery Certainty UK Job Creation and Skills Development Existing UK Infrastructure 8

9 Thank you 9