Transcription of Module 4 Reactor Theory (Reactor Operations)
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DOE Fundamentals NUCLEAR PHYSICS AND Reactor Theory Module 4 Reactor Theory ( Reactor operations ) Reactor Theory ( operations ) i TABLE OF CONTENTS T able of Co nte nts TABLE OF CONTENTS .. i LIST OF FIGURES .. iii LIST OF TABLES .. iii REFERENCES ..iv OBJECTIVES .. v SUBCRITICAL MULTIPLICATION .. 1 Subcritical Multiplication Factor .. 1 Effect of Reactivity Changes on Subcritical Multiplication .. 3 Use of 1/M Plots .. 6 Summary .. 9 Reactor KINETICS .. 10 Reactor Period (t) .. 10 Effective Delayed Neutron Fraction .. 11 Effective Delayed Neutron Precursor Decay Constant .. 13 Prompt 15 Stable Period Equation .. 16 Reactor Startup Rate (SUR) .. 16 Doubling 17 Summary .. 20 Reactor OPERATION .. 22 Startup .. 22 Estimated Critical Position .. 23 Core Power Distribution .. 24 Power Tilt .. 26 Shutdown Margin .. 26 Operation .. 27 Temperature .. 27 Pressure .. 28 Power Level .. 28 Reactor Theory ( operations ) ii Flow .. 28 Core Burnup .. 29 Shutdown .. 30 Decay Heat.
Reactor Theory (Operations) 4 (4-3) Example: A reactor contains a neutron source that produces 110,000 neutrons per second. The reactor has a k eff of 0.986. Calculate the stable total neutron production rate in the reactor. Solution: The neutron production rate is …
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