@book{907079f29bed457f828c1829f0b93703,
title = "HEXBU-3D, a three-dimensional PWR-simulator program for hexagonal fuel assemblies",
abstract = "HEXBU-3D is a three-dimensional nodal simulator program for PWR reactors. It is designed for a reactor core that consists of hexagonal fuel assemblies and of big follower-type control assemblies. The program solves two-group diffusion equations in homogenised fuel assembly geometry by a sophisticated nodal method. The treatment of feedback effects from xenon-poisoning, fuel temperature, moderator temperature and density and soluble boron concentration are included in the program. The nodal equations are solved by a fast two-level iteration technique and the eigenvalue can be either the effective multiplication factor or the boron concentration of the moderator. Burnup calculations are performed by tabulated sets of burnup-dependent cross sections evaluated by a cell burnup program. HEXBY-3D has been originally programmed in FORTRAN V for the UNIVAC 1108 computer, but there is also another version which is operable on the CDC CYBER 170 computer.",
keywords = "pressurized water reactors, simulation, nuclear fuel assemblies",
author = "Elja Kaloinen and Risto Ter{\"a}svirta and Pertti Siltanen",
year = "1981",
language = "English",
isbn = "951-38-1254-5",
series = "Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports",
publisher = "VTT Technical Research Centre of Finland",
number = "7",
address = "Finland",
}