Abstracts and Available Papers Presented at the 2004 International RERTR Meeting
PREDICTION OF FLOW INSTABILITY DURING NATURAL CONVECTION
Kazem Farhadi
Head of Tehran Research Reactor Research Group
Nuclear Research Center
Atomic Energy Organization of Iran (AEOI) Tehran, Iran
ABSTRACT
The occurrence of flow excursion instability during
passive heat removal for Tehran Research Reactor (TRR)
has been analyzed at low-pressure and low-mass rate of
flow conditions without boiling taking place. Pressure
drop-flow rate characteristics in the general case are
determined upon a developed code for this purpose. The
code takes into account variations of different pressure
drop components caused by different powers as well as
different core inlet temperatures. The analysis revealed
the fact that the instability can actually occur in the
natural convection mode for a range of powers per fuel
plates at a predetermined inlet temperature with fixed
geometry of the core. Low mass rate of flow and high
sub-cooling are the two important conditions for the
occurrence of static instability in the TRR. The
calculated results are compared with the existing data
in the literature.
Contact: Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division – 362
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL 60439
Fax: +1 630-252-5161
The 2016 International RERTR Meeting (RERTR-2016) will take place in Belgium.
Stay tuned for further details.
The 2015 International RERTR Meeting (RERTR-2015) took place in Seoul, Korea on Oct. 11-14, 2015.
For more information visit RERTR-2015.