In the research reactor, the presence of 16N was resulted from nucleus reaction between fast-neutron with O2 of reactor coolant in the core. This 16N is carried over by coolant to reactor tank’s surface. High radiation level of 16N at tank’s surface, will certainly limit the personal activity within the area. On the related of the problem, numerical calculation of thermohydraulic aspect of reactor has been performed to approximate 16N concentrate at reactor tank’s surface by computer package PLUENT V4.25. The nuclear reactor discussed in this analysis is modified 2 MW Triga Mark II research reactor. The calculation results have shown the position where 16N present on tank’s surface, and its concentration approximately.
Batan
Batan
