Feedback simulation of ramped power transients using transfer functions
Conference
·
· Trans. Am. Nucl. Soc.; (United States)
OSTI ID:6819524
The dynamic simulation of reactor transients is important in determining the feedback and temperature responses of various subassembly components. One method of determining component feedbacks (or associated temperature increments) is by using the feedback reactivity transfer functions of the system. For any variation of power with time the component feedback reactivity responses are then obtained by the convolutions of the feedback reactivity transfer functions and the fractional change in system power. (The nodal feedback reactivity transfer functions for the system were obtained, using the EROS computer code, from nodal feedback responses for a step change in power.) This paper discusses the application of these transfer functions in calculating nodal feedback reactivities in the experimental breeder reactor-II (EBR-II) reactor assuming a fractional power shape that can be defined by a series of ramp inputs. For a comparison, these transfer-function calculated nodal reactivities are compared with nodal reactivities calculated using the EROS kinetics code assuming an input reactivity which gives the described ramp power shape.
- Research Organization:
- Argonne National Lab., IL
- OSTI ID:
- 6819524
- Report Number(s):
- CONF-861102-
- Conference Information:
- Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 53
- Country of Publication:
- United States
- Language:
- English
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