Accession Number : AD0757496

Title :   Identification of Thermal Feedback Parameters for a TRIGA Mark-1 Reactor.

Descriptive Note : Technical memo.,

Corporate Author : TEXAS UNIV AUSTIN ELECTRONICS RESEARCH CENTER

Personal Author(s) : Williams,David Martin ; Flake,R. H.

Report Date : 30 NOV 1972

Pagination or Media Count : 59

Abstract : An identification procedure is given for determining the thermal feedback parameters for the TRIGA Mark-1 nuclear reactor at The University of Texas at Austin. A discussion of reactivity feedback for heterogeneous reactors is presented. The reactor model, including both thermal and poisoning feedback loops, is developed and then simplified. A brief description is given of the TRIGA reactor and the rest of the experimental equipment. The parameter identification technique is illustrated for the transfer function relating fuel temperature and reactor power level. The design of the two digital filters that are used is also discussed. The reactor system is simulated using the identified parameters. The close match between the simulated results and the measured data indicates that the reactor model is valid for the power regions involved in this experiment. (Author)

Descriptors :   (*RESEARCH REACTORS, *REACTOR REACTIVITY), REACTOR CONTROL, REACTOR KINETICS, TRANSFER FUNCTIONS, NONLINEAR SYSTEMS, CONTROL RODS, MATHEMATICAL MODELS, NUMERICAL ANALYSIS, REACTOR POISONS, IDENTIFICATION SYSTEMS, COMPUTER PROGRAMS, FEEDBACK

Subject Categories : Fission Reactor Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE