Thermal mixing in T-junctions

Temperature fluctuations occur due to thermal mixing of hot and cold streams in the T-junctions of the piping system in nuclear power plants. Temperature fluctuations cause thermal fatigue of piping system. In the present work, thermal mixing experiments are carried out on a T-junction with water. V...

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Bibliographic Details
Published inChemical engineering science Vol. 65; no. 22; pp. 5901 - 5911
Main Authors Naik-Nimbalkar, V.S., Patwardhan, A.W., Banerjee, I., Padmakumar, G., Vaidyanathan, G.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 15.11.2010
Elsevier
Subjects
Anemometers
Applied sciences
CFD
Chemical engineering
Computational fluid dynamics
Exact sciences and technology
Fluctuation
HFA
Nuclear power plants
Pipelining (computers)
Steady state
Temperature distribution
Temperature fluctuations
Thermal fatigue
Thermal mixing
Thermal striping
CFD
HFA
Thermal fatigue
Thermal mixing
Temperature fluctuations
Thermal striping
Temperature distribution
Mixing
Computational fluid dynamics
Fatigue
Steady state
Piping
Nuclear power plant
Temperature fluctuation
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Summary:Temperature fluctuations occur due to thermal mixing of hot and cold streams in the T-junctions of the piping system in nuclear power plants. Temperature fluctuations cause thermal fatigue of piping system. In the present work, thermal mixing experiments are carried out on a T-junction with water. Velocity and temperature fields are measured using hot film anemometer (HFA). Three dimensional steady state computational fluid dynamics (CFD) simulations have been carried out to predict the velocity and temperature fields. The predicted velocity and temperature fields are in good agreement with the experimental measurements.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2010.08.017