Preliminary Study on the Remaining Life Estimation Method for Research Reactor Tank Liner

Abstract The reactor tank liner is one of the most crucial safety barriers in a research as it retains radioactive material released from fuel during accident condition. It also contains primary coolant for fission heat removal. integrity determines service life reactor. So far, remaining estimation pressure vessels nuclear power plants more widely applied and established than that liner. Therefore, study on method needed to ensure operation safety. This paper aims preliminarily several methods estimate preliminary consists qualitative assessment quantitative assessment. propose techniques or estimating applies discussed previous Generally, can be estimated using theoretical experimental method. are by calculating neutron fluence received analyzing fracture mechanics numerical modeling if cracks other defects exist. calculation atom displacement number (dpa), standard measure neutron-induced radiation damage materials, support calculation. conducted measuring parameters material, such corrosion rate mechanical properties. In assessment, Kartini Reactor was performed MCNP6 computer code. result shows maximum wall 2.950E+17 n/cm 2 40 years operating period. By comparing cumulative thermal limit value 1.18E+23 , still used next 1.6E+07 years. implicitly needs to: 1) consider all experienced factors (e.g., thermal, radiation, chemical, cyclic loading) which affect condition, 2) perform combination methods. For an open-pool type reactor, monitoring measurement essential