没有A12O3涂层时,不到300s的时间氚释放达到稳态。若900-MWe 核电站换成无A12O3涂层的FeCrA1包壳管,再加上冷却剂中硼产生的氚以及可燃毒物棒中硼的活化,这则导致反应堆氚的排放量为原来锆合金包壳管燃料棒的十几倍。使用3μm厚度的A12O3涂层后,即使到寿期末,此时刻的氚释放比例在整个寿期内达到最大值,为4.3×10-5%,将远低于冷却剂中硼产生的氚以及可燃毒物棒中硼的活化产生的氚。
Without the Al2O3 coating, tritium release reaches steady state in less than 300 seconds. If the 900-MWe nuclear power plant is replaced by a FeCrAl casing tube without Al2O3 coating, coupled with the activation of the tritium produced by the boron in the coolant and the boron in the combustible poison rod, this will result in the reactor tritium emissions of more than ten times that of the original zirconium alloy shell tube fuel rod. After using a 3 μm thick Al2O3 coating, even at the end of the life cycle, the proportion of tritium released at this moment reaches a maximum over the entire lifetime, 4.3×10-5%, which will be much lower than the tritium produced by the activation of the boron in the coolant and the tritium produced by the activation of the boron in the combustible poison rod.