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Advanced Test Reactor.

Published byCaroline Hubbard Modified over 8 years ago

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Presentation on theme: "Advanced Test Reactor."— Presentation transcript:

1 Advanced Test Reactor

2 ATR vs Commercial Reactor
Confinement Structure Operating Conditions 390 psi 140 degrees F Reactor Core 4 feet x 4 feet 880 pounds 21 pounds of uranium Containment Structure Operating Conditions 2600 psi 550 degrees F Reactor Core 12 feet x 15 feet 154 tons 12,000 pounds of uranium

3 ATR Timeline 1967 1987 1997 2007 Start of Operations (6 loops 1967)
2nd Core Internals Changeout (CIC) 1977 9th Loop Facility Installed, Improved Loop Capabilities 1980 Lead Experiment Facility Installed 1984 Reactor Control Room Replaced 1989 3rd Core Internal 1986 Process Control Room Replaced & Core Reconfigured 1993 Loop Control System Replaced & 4th Core Internal Decreased Active Loops to 5 1994 External Secondary Piping & Cooling Tower Replacement 1998 Irradiation Test Vehicle (ITV) Installed 1999 5th Core Internal 2004 6th Core Internal 2010 1967 1987 1997 2007 1st Core Internals Changeout (CIC) 1972 Increased number of loops from 6 to 8 1973 Plant Protective System Upgrade 2006

4 ATR Specifications Reactor Type
Pressurized, light-water moderated and cooled, beryllium reflector Reactor Vessel 3.65 m diameter cylinder, m high Stainless steel Reactor Core 1.22 m (diameter & height) 40 fuel elements, high enriched U-235

5 ATR Specifications (continued)
Coolant Inlet Temperature & Pressure 52°C, 2450 kPa Thermal Power & Flux Maximum Total Core Power – 250MW Approximate Peak Flux Values (Unperturbed) 1 x n/cm2–sec thermal 5 x n/cm2-sec fast

6 ATR Specifications (continued)
Hafnium Reactivity Control Drums/Rods Maintains Axial Flux Shape During Operating Cycle Flux/Power Adjustments Among Core Lobes/Flux Traps Irradiation Facilities 77 Reflector Positions 68 Flux Traps 4 In-pile Tubes 5

7 South and East Flux Trap Irradiation Facilities
ATR Core Cross Section b Outer Shim Control Cylinder “B” Position Fuel Element Neck Shim Rod (1-6 Typical) MICE Inboard “A” Position (1-8) Outboard “A” Position (9-16) Standard Loop Irradiation Facility “I” Position Outer South Irradiation Tank South and East Flux Trap Irradiation Facilities Safety Rod “H” Position Large Loop Irradiation Facility ITV Outer North Irradiation Tank H9 H1 H5 H13 H8 H7 H6 H11 H10 H12 H15 H14 H16 H2 H3 H4 3 1 2 4 5 7 6 M-1 M-3 M-2

8 ATR Vessel & Internals

9 Irradiation Test Vehicle

10 ATR Standard Loop Layout
Loop Closure Plugs Line Heaters Pressurizer Heat Exchanger Reactor Core Ion Exchange Columns Pumps Loop Inlet and Outlet Piping Operating Console

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