Predicting and Preventing Flow Accelerated Corrosion in Nuclear Power Plant

Table 5

Models and how they deal with key variables.

Model	FAC function of or	Roughness effects	Solubility relationship	Cause of FAC reduction at; Low T and High T
CEGB; [54, 66, 67, 70, 71]	Nonlinear; .	Acknowledged but not specifically integrated.	S and B	MDR *   Solubility
EdeF; [65, 69, 72–76]	Linear; or less	Yes and specified relationship	S and B	Porosity Porosity; MDR
Sanchez Calder [77]	Linear  or less	Apparently not	S and B	Porosity Porosity; MDR
Penn S; [79]	Mechanistic model-linear?; ANN model nonlinear.	Yes but not specified	Their own which is bell shaped at pH 7 and increases with temperature at pH 9	Unclear
EPRI; [2, 87, 88]	Not stated but apparently between 0.6 and 0.7	Yes but suggested and did not occur	Unclear which or if incorporated into model, though clearly identified differences between S and B and T and LeB data	MDR Solubility
Siemens KWU [84–86]	FACrate; where is complex of time and temperature	Apparently not	Unclear which or if incorporated into model	Unclear
Lister and Lang [15] and Uchida et al [81]	Nonlinear due to shear stress on oxide	Yes	S and B or T and LeB?	Unclear

MDR is magnetite dissolution reaction.