NUCLEAR REACTOR AS THE OBJECT OF CONTROL
Abstract
The nuclear reactor on neutron power is described by a nonlinear differential equation of the seventh order. For examining the thermal state of the reactor and the effect of the temperature coefficient of the reactivity, it is necessary to take into consideration also the reactor equation for temperature. When there are little deviations from the position of equilibrium it is permissible to linearize the nonlinear differential equation of the reactor. With relation to perturbations by an excess coefficient of reactivity the reactor which does not have a temperature coefficient of reactivity is astatic. With the presence in the reactor of a negative temperature coefficient of reactivity, its properties are substantially changed. The reactor takes on the property of temperature autoregulation. The regulating organ with the aid of which the action on the mode of operation of the reactor is accomplished (absorbing rods), possesses a nonlinear characteristic: the absorbing capacity of the rod depends nonlinearly on the depth of its insertion in the active zone or the reflector.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 23, 1961
- Accession Number
- AD0259589
Entities
People
- B.s. Voronkov
Organizations
- National Air and Space Intelligence Center