Reduced Delayed Neutron Group Representations

Autor: R. E. Skinner, E. R. Cohen
Rok vydání: 1959
Předmět:
Zdroj: Nuclear Science and Engineering. 5:291-298
ISSN: 1943-748X
0029-5639
DOI: 10.13182/nse59-a25601
Popis: It has been shown that a two-delayed neutron group model will accurately represent the asymptotic behavior of the reactor transfer function. Correspondingly, the requirement that this asymptotic behavior be accurately represented is sufficient to specify completely the twodelayed neutron group constants. Funther, a threedelayed neutron group model has been evolved which is designed to represent both the asymptotic behavior of the transfer function and shutdown behavior. The inhour equation, transfer function, and transient behavior for step inputs of reactivity with and without reactivity feedback loops for the two- and three-delayed neutron group representations are compared with those given by the standard one group and many delayed neutron group treatments. Important consequences of such reduced group representations are savings in machine time in making kinetic studies and increased tractability of the reactor kinetic equations. (auth)
Databáze: OpenAIRE