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Pressurized Water Reactor

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Presentation on theme: "Pressurized Water Reactor"— Presentation transcript:

1 Pressurized Water Reactor
HPT F HPT F Revision 0 Slide 1 of 10 Pressurized Water Reactor

2 Pressurized Water Reactor Flow
HPT F Revision 0 Slide 2 of 10 Pressurized Water Reactor Flow

3 HPT F Revision 0 Slide 3 of 10 Primary Cooling Cycle Reactor – heat from fission is transferred to coolant Steam Generators (tube side) – hot reactor coolant is circulated through tubes to produce steam Reactor Coolant Pumps – circulate the coolant through the system

4 Secondary Cooling Cycle
HPT F Revision 0 Slide 4 of 10 Secondary Cooling Cycle Steam Generators (shell side) – converts water to steam Turbines – convert steam to mechanical work Main Condenser – receives exhaust steam Moisture Separators/Reheaters – remove moisture, reheat steam Secondary Side Pumps – return the condensed steam to the steam generators

5 HPT F Revision 0 Slide 5 of 10 Tertiary Loop Cools and condenses the steam exhausted from the turbines Transfers heat from the steam to the river

6 HPT F Revision 0 Slide 6 of 10 PWR Design Water on primary side is maintained at ~2235 psig to prevent boiling Primary side water does not come into contact with secondary side water Steam generator is the component that divides the primary side from the secondary side

7 HPT F Revision 0 Slide 7 of 10 Plant Layout Containment Building – contains primary cooling loop, isolates radioactive water from the environment Auxiliary Building – contains all other potentially radioactive systems Control Building – houses main control room, cable room, aux. instrument room, computer room, and battery room Turbine Building – contains secondary system Additional Equipment Building – ice making equipment

8 Fission Product Barriers
HPT F Revision 0 Slide 8 of 10 Fission Product Barriers Fuel Cladding Reactor Coolant System Pressure Boundary Containment Vessel

9 Containment Structure
HPT F Revision 0 Slide 9 of 10 Containment Structure Containment consists of a steel containment vessel and separate shield building Annulus is between the two structures Design internal pressure is 12 psig Containment structure is last barrier against fission product release to the environment

10 Modes of Operation Mode 1, Plant Operation >5% > 350 ºF
HPT F Revision 0 Slide 10 of 10 Modes of Operation Mode 1, Plant Operation >5% > 350 ºF Mode 2, Startup < 5% > 350 ºF Mode 3, Hot Standby 0% > 350 ºF Mode 4, Hot Shutdown Tavg between 200 ºF and 350 ºF Mode 5, Cold Shutdown < 200 ºF Mode 6, Refueling < 140 ºF No Mode, no fuel in the core

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