scholarly journals Robust Calibration of Complex ThermosysPro Models using Data Assimilation Techniques: Application on the Secondary System of a Pressurized Water Reactor

2019 ◽  
Author(s):  
Luis Corona Mesa-Moles ◽  
Jean-Philippe Argaud ◽  
Audrey Jardin ◽  
Amine Benssy ◽  
Yulu Dong
Keyword(s):  
Data Assimilation ◽  
Pressurized Water Reactor ◽  
Secondary System ◽  
Pressurized Water ◽  
Water Reactor ◽  
Using Data

Pitting Corrosion and its Countermeasures for Pressurized Water Reactor Steam Generator Tubes

CORROSION ◽  
2006 ◽  
Vol 62 (10) ◽  
pp. 905-910 ◽  
Author(s):  
D. H. Hur ◽  
M. S. Choi ◽  
D. H. Lee ◽  
M. H. Song ◽  
J. H. Han
Keyword(s):  
Steam Generator ◽  
Pitting Corrosion ◽  
Copper Alloys ◽  
Pressurized Water Reactor ◽  
Secondary System ◽  
Chemical Cleaning ◽  
Pressurized Water ◽  
Water Reactor ◽  
High Copper Content ◽  
Steam Generator Tubes

Abstract Pitting corrosion was the primary cause of the Alloy 600 (UNS N06600) steam generator tube degradation in a Korean pressurized water reactor (PWR) plant. Pulled tube examinations and remedial measures were carried out to mitigate the pitting. Based on the destructive examinations, the main causes of pitting corrosion were considered to be the following: accumulated sludge with a high copper content due to corrosion of copper alloys in the secondary system, acidic crevice conditions caused by chloride from condenser leakage, and ingress of air during layup. Countermeasures such as copper alloy replacement, water chemistry control, and chemical cleaning were implemented to mitigate the pitting. Chemical cleaning was evaluated as the most effective.

scholarly journals Graph Representation for Secondary System of Pressurized Water Reactor with Autocatalytic Set Approach

2015 ◽  
Vol 11 (4) ◽  
pp. 107-112 ◽  
Author(s):  
Azmirul Ashaari ◽  
Tahir Ahmad ◽  
Mustaffa Shamsuddin ◽  
Wan Munirah Wan Mohamad ◽  
Nazira Omar
Keyword(s):  
Graph Representation ◽  
Pressurized Water Reactor ◽  
Secondary System ◽  
Pressurized Water ◽  
Water Reactor

scholarly journals Generated paths of an autocatalytic set of a secondary system of a pressurized water reactor

2017 ◽  
Vol 13 (2) ◽  
Author(s):  
Zainab Mahamud ◽  
Tahir Ahmad
Keyword(s):  
Pressurized Water Reactor ◽  
Secondary System ◽  
Dynamic Graph ◽  
Pressurized Water ◽  
Water Reactor

A graph is used to model pairwise relation between objects. In this paper, it is used to model secondary system of pressurized water reactor. The process is presented as a dynamic graph by integrating the concept of Autocatalytic Set (ACS). The graph is then transformed into an omega algebra whereby all the possible paths of the process are determined. Seven variables are identified to represent the nodes with twenty one links to indicate catalytic relations among these nodes. A programming code of C++ is developed for the identification of these 317 links.

Sign in / Sign up

Export Citation Format

Share Document