Critical Reflections about Doel3 & Tihange2

Integrity reactor vessels Doel 3 and Tihange 2

Page: 7

Figure 4: Distribution of the flaw size with respect to the inner wall distance [ 14 ] p55.

is mentioned that this increase in number and size of the flaws is due to the increased resolution of the measurement equipment used in 2014 compared to the equipment used in 2012 and not to a physical increase of the flaws in the reactor vessel. ( [ 17 ] p11). Based on the new flaw data, the mean flaw density within the first 100 mm wall thickness should amount 3.4 flaws / dm 3 and the maximum flaw density 41.6 flaws / dm 3 ( [ 15 ] p7).

R.Boonen & J.Peirs

May 18, 2017