Power Transfer Functions of the Ebwr Obtained Using a Sinusoidal Reactivity Driving Function

Abstract

A series of reactor frequency response measurements, relating flux or power level to a reactivity input function, were made to evaluate reactor stability for different values of power parameters. These parameters included: power level, steam pressure, and control rod position. The results were extrapolated to predict EBWR stability at higher operating powers. The experimental data may also be used to evaluate the thermodynamic and hydraulic constants.

Ebwr Test Reports

“…Changes made in the core fuel elements are shown in the core loading charts for loads was in service from December 1956, to January 1958 1-12, 1-13 and 1-14 show reactor and generator operating levels by months for 195 7,1958 and 1959 . M Core loading #46, the final loading after criticality testing, was used from December 1956 to January 1958.…”

Random noise analysis in the Iowa State University UTR-10 reactor

“…Two of the more important are (l) to determine system stability and (2) to establish parameters that are needed to characterize the reactor system in theoretical studies. As examples, stability of circulating fuel reactors has been predicted from kinetics studies (24), also results from kinetics studies have been used to estimate the power level at which a boiling water reactor would become unstable (10,11). Accurate values of reactor parameters are needed by control system engineers for theoretical control system studies.…”