Ruthenium behavior in the reactor cooling system in case of a PWR severe accident

被引：0
作者：
M. N. Ohnet
O. Leroy
A. S. Mamede
机构：
[1] Institut de Radioprotection et de Sûreté Nucléaire (IRSN),
[2] PSN-RES,undefined
[3] Univ. Lille,undefined
[4] CNRS,undefined
[5] ENSCL,undefined
[6] Centrale Lille,undefined
[7] Univ. Artois,undefined
[8] UMR 8181– UCCS – Unité de Catalyse et Chimie du Solide,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2018年 / 316卷
关键词：
Source term; Severe accident; Ruthenium transport; Reactor cooling system; Kinetics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In the frame of severe accident topic for pressurized water reactor, the physical-chemistry of Ru fission products were experimentally studied to better understand their behavior inside the reactor coolant system in air or air/steam atmospheres. The tests consisted in vaporizing RuO2 at 1200 °C and the ruthenium oxides are transported through a controlled thermal gradient tube made of quartz or pre-oxidized stainless steel. Results show that the major part up to 95% is deposited along the tube, the remaining part being transported almost under gaseous form attributed to RuO4. Impact of carrier gas, temperature profile and nature of the tube are discussed.
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页码：161 / 177
页数：16
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