Author: Alan Edward WaltarPublisher:
ISBN:
Category : FORTRAN IV (Computer program language)
Languages : en
Pages : 182
Book Description
MELT-I is a coupled neutronics - heat transfer code for use in estimating gross core behavior during major fast reactor excursions. The unique feature of the code is the treatment of positive reactivity feedbacks due to fuel collapse and sodium voiding. Althought the feedback models and the method of obtaining core temperatures are quite simplified, the ability of the code to couple the feedback terms to the driving function in the point kinetics equations allows oen to make reasonable estimates of core conditions just prior to the start of core disassembly. The core model consists of a maximum of 10 radial channels, 40 axial segments, and 8 radial fuel nodes plus a clad and a coolant node for reach pin. Running time, although highly problem dependent, is roughly three minutes for a representative case on a UNIVAC 1108. All programming is in FORTRAN-IV.