An Analytical Study of Thermophoretic Particulate Deposition in Turbulent Pipe Flows

Journal Article · Fri Jan 01 04:00:00 EST 2010 · Aerosol Science & Technology

DOI:https://doi.org/10.1080/02786826.2010.491841· OSTI ID:986393

Abarham, Mehdi ^[1]; Hoard, John W. ^[1]; Assanis, Dennis ^[1]; Styles, Dan ^[2]; Sluder, Scott ^[3]; Storey, John Morse ^[3]

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1. University of Michigan
2. Ford Motor Company
3. ORNL

The presence of a cold surface in non-isothermal pipe flows conveying submicron particles causes thermophoretic particulate deposition. In this study, an analytical method is developed to estimate thermophoretic particulate deposition efficiency and its effect on overall heat transfer coefficient of pipe flows in transition and turbulent flow regimes. The proposed analytical solution has been validated against experiments conducted at Oak Ridge National Laboratory. Exhaust gas carrying submicron soot particles was passed through pipes with a constant wall temperature and various designed boundary conditions to correlate transition and turbulent flow regimes. Prediction of the reduction in heat transfer coefficient and particulate mass deposited has been compared with experiments. The results of the analytical method are in a reasonably good agreement with experiments.

• Research Organization: Oak Ridge National Laboratory (ORNL); Fuels, Engines and Emissions Research Center
• Sponsoring Organization: ORNL work for others
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 986393
• Journal Information: Aerosol Science & Technology, Journal Name: Aerosol Science & Technology Journal Issue: 9 Vol. 44; ISSN 0278-6826; ISSN 1521-7388
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ANALYTICAL SOLUTION
BOUNDARY CONDITIONS
DEPOSITION
HEAT TRANSFER
PIPES
SOOT
THERMOPHORESIS
TURBULENT FLOW