Development and adaptation of conduction and radiation heattransfer computer codes for the CFTL
Abstract
RODCON and HOTTEL are two computational methods used to calculate thermal and radiation heat transfer for the Core Flow Test Loop (CFTL) analysis efforts. RODCON was developed at ORNL to calculate the internal temperature distribution of the fuel rod simulator (FRS) for the CFTL. RODCON solves the timedependent heat transfer equation in two dimensional (R angle) cylindrical coordinates at an axial plane with userspecified radial material zones and time and positionvariant surface conditions at the FRS periphery. HOTTEL is a revision of an algorithm developed by C.B. Baxi at the General Atomic Company to be used in calculating radiation heat transfer in a rod bundle enclosed in a hexagonal duct. HOTTEL uses geometric view factors, surface emissivities, and surface areas to calculate the graybody or composite view factors in an enclosure having multiple reflections in a nonparticipating medium.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 August 1981
 Bibcode:
 1981STIN...8215369C
 Keywords:

 Computer Programs;
 Conductive Heat Transfer;
 Nuclear Reactors;
 Radiative Heat Transfer;
 Reactor Cores;
 Algorithms;
 Core Flow;
 Finite Difference Theory;
 Heat Transfer;
 Reactor Technology;
 Fluid Mechanics and Heat Transfer