Abstract
Flow Accelerated Corrosion (FAC) requires considerable attention in plant piping management, for its potential of catastrophic pipe rupture of main piping systems. In view of fluid dynamics, the most essential factor to be considered is mass transfer at the inner surface of the pipe. Mass transfer coefficients are determined by fluid properties and piping geometry, however, no universal correlation exists, which is adaptable to various types of piping elements with strong turbulence. In this study, the modeling of mass transfer coefficient was progressed based on Chilton-Colburn analogy and utilizing "effective friction velocity" from the hydraulics in the viscous sub-layer along the wall. FAC experiments with PWR condensate water condition and CFD for the flow were conducted with a contracted rectangular duct. By considering the turbulent velocity of the viscous layer into the mass transfer coefficient, the correlation with the FAC thinning rate improved, effectively.
| Original language | English |
|---|---|
| Pages (from-to) | 427-428 |
| Number of pages | 2 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 75 |
| Issue number | 751 |
| DOIs | |
| Publication status | Published - 2009 Jan 1 |
| Externally published | Yes |
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Keywords
- Flow Accelerated Corrosion (FAC)
- Mass Transfer Coefficient
- Pipe Wall Thinning
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
Cite this
Study of Mass transfer effect on Flow Accelerated Corrosion. / Yoneda, Kimitoshi; Inada, Fumio; Morita, Ryo; Furuya, Masahiro.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 75, No. 751, 01.01.2009, p. 427-428.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Study of Mass transfer effect on Flow Accelerated Corrosion
AU - Yoneda, Kimitoshi
AU - Inada, Fumio
AU - Morita, Ryo
AU - Furuya, Masahiro
PY - 2009/1/1
Y1 - 2009/1/1
N2 - Flow Accelerated Corrosion (FAC) requires considerable attention in plant piping management, for its potential of catastrophic pipe rupture of main piping systems. In view of fluid dynamics, the most essential factor to be considered is mass transfer at the inner surface of the pipe. Mass transfer coefficients are determined by fluid properties and piping geometry, however, no universal correlation exists, which is adaptable to various types of piping elements with strong turbulence. In this study, the modeling of mass transfer coefficient was progressed based on Chilton-Colburn analogy and utilizing "effective friction velocity" from the hydraulics in the viscous sub-layer along the wall. FAC experiments with PWR condensate water condition and CFD for the flow were conducted with a contracted rectangular duct. By considering the turbulent velocity of the viscous layer into the mass transfer coefficient, the correlation with the FAC thinning rate improved, effectively.
AB - Flow Accelerated Corrosion (FAC) requires considerable attention in plant piping management, for its potential of catastrophic pipe rupture of main piping systems. In view of fluid dynamics, the most essential factor to be considered is mass transfer at the inner surface of the pipe. Mass transfer coefficients are determined by fluid properties and piping geometry, however, no universal correlation exists, which is adaptable to various types of piping elements with strong turbulence. In this study, the modeling of mass transfer coefficient was progressed based on Chilton-Colburn analogy and utilizing "effective friction velocity" from the hydraulics in the viscous sub-layer along the wall. FAC experiments with PWR condensate water condition and CFD for the flow were conducted with a contracted rectangular duct. By considering the turbulent velocity of the viscous layer into the mass transfer coefficient, the correlation with the FAC thinning rate improved, effectively.
KW - Flow Accelerated Corrosion (FAC)
KW - Mass Transfer Coefficient
KW - Pipe Wall Thinning
UR - http://www.scopus.com/inward/record.url?scp=67649933477&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649933477&partnerID=8YFLogxK
U2 - 10.1299/kikaib.75.751_427
DO - 10.1299/kikaib.75.751_427
M3 - Article
AN - SCOPUS:67649933477
VL - 75
SP - 427
EP - 428
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 751
ER -