ACR Workshop -Core Design & Reactor Physics- - NRC

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Unique LOCA Features in <strong>ACR</strong> • Power in reactor core region drops upon LOCA due to negative void reactivity • Rapid rise in thermal neutron flux in the reflector region due to migration and subsequent thermalization of fast neutrons from the core region • Fast neutronic trip is available from neutron detectors in the reflector region Pg 22
Thermal Flux ( 10E14 ) 4 3.5 3 2.5 2 1.5 1 0.5 0 Thermal Neutron-Flux Distributions in <strong>ACR</strong>-700 after LOCA T=0.0s T=0.010s T=0.015s T=0.020s T=0.030s 0 50 100 150 200 250 300 350 400 450 500 550 Distance from Edge of Reflector (cm) Pg 23
Page 1 and 2: ACR Workshop -Core Design & Reactor
Page 3 and 4: Fuel Temperature effect Reactivity
Page 5 and 6: ACR-700 Reactor Control & Safety Sy
Page 7 and 8: End-View of ACR-700 Pg 7
Page 9 and 10: Safety Parameters in ACR-700 and CA
Page 11 and 12: Coolant CANDU 6 (D 2 O ) ACR (H 2
Page 13 and 14: Effects of CANFLEX SEU Fuel in ACR
Page 15 and 16: Effect of Coolant Void in ACR ACR
Page 17 and 18: Comparison of CANDU 6 and ACR Latti
Page 19 and 20: Effect of Trip Time & CVR on LOCA T
Page 21: Relative Power 1.1 1 0.9 0.8 0.7 0.
Page 25 and 26: Thermal Flux Profile upon LOCA at t
Page 27 and 28: Thermal Flux Profile upon LOCA at t
Page 29 and 30: Thermal Flux Ratios in ACR-700 upon
Page 31: Pg 31

ACR Workshop -Core Design & Reactor Physics- - NRC

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